How to replace a ds battery without losing data

How to replace a ds battery without losing data

So your beloved Nintendo Switch isn’t turning on? Don’t panic, it’s probably a very small issue.

There are a few reasons why your Nintendo Switch might not turn on, and most of them aren’t serious. Here’s how to quickly troubleshoot a Nintendo Switch that won’t start.

Check out the products mentioned in this article:

Nintendo Switch (From $299.99 at Best Buy)

How to fix a Nintendo Switch that won’t turn on

Let it charge

Most of the time, when a Switch refuses to turn on, you can chalk it up to a drained battery. This is especially true if it’s been a long time since its last charge — over time, it may have lost even its residual charge.

Place it into its dock or plug the charging cable in directly and wait at least an hour for it to charge back up. The Switch should soon be operational, and will be fully charged in about three hours.

For more info on how to charge your Nintendo Switch, check out our article, “How to charge a Nintendo Switch console in 2 ways, and keep playing while it charges.”

Perform a hard reset

If your Switch remains unresponsive, even after a decent charging session, or if you can see a faint light coming from the blank screen, it’s time to force a shutdown instead. Don’t worry, your saved data won’t be lost.

To shut the Switch off manually:

1. Hold down the little circular power button on top of the Switch for between 15 seconds.

2. Release it and wait a few more seconds.

3. Push the power button normally.

If it still won’t turn on, you may have a deeper issue. Contact Nintendo support and see if they can help.

Find out the challenges and limitations of repairing “smart” batteries

Most laptop batteries are smart and consist of the “chemical battery” that is managed by the “digital battery.” A common protocol is the System Management Bus, better known as SMBus.

The typical SMBus battery has five or more battery connections consisting of positive and negative battery terminals, thermistor, clock and data. The connections are often unmarked; however, the positive and negative are commonly located at the outer edges of the connector and the inner contacts accommodate the clock and data. (The one-wire system combines clock and data.) For safety reasons, a separate thermistor wire is brought to the outside. Figure 1 illustrates a battery with six connections.

How to replace a ds battery without losing data Figure 1: Terminal connection of a typical laptop battery [1]

The positive and negative terminals are usually placed on the outside; no norm exists on the arrangement of the other contacts.

Some batteries are equipped with a solid-state switch that is normally in the “off” position and no voltage is present at the battery terminals. Connecting the switch terminal to ground or pulling it up often turns the battery on. If this does not work, the pack may need a code for activation. Battery manufacturers keep these proprietary codes a well-guarded secret to which even service personnel have no access.

Use a voltmeter to locate the positive and negative battery terminals and establish the polarity. If no voltage is present, a solid-state switch may be in the “off” position and needs activating. Connect the voltmeter to the outer terminals, take a 100-Ohm resistor (other values may also work), tie one end to ground and with the other end touch each terminal while observing the voltmeter. Repeat by tying the resistor to a positive voltage potential. If there is no response, then it is possible that the battery is dead or locked by a code. The 100-Ohm resistor is low enough to engage a digital circuit and high enough to protect the battery against a possible electrical short.

Establishing the connection to the battery terminals should now enable charging. If the charge current stops after 30 seconds, an activation code may be required. Some battery manufacturers add an end-of-battery-life switch that turns the battery off when reaching a certain age or cycle count. They argue that customer satisfaction and safety can only be guaranteed by regularly replacing the battery. Mind you, such a policy also rotates inventory.

If at all possible, connect the thermistor during charging and discharging to protect the battery against possible overheating. Use an ohmmeter to locate the internal thermistor. The most common thermistors are 10 Kilo Ohm NTC, which reads 10kΩ at 20C (68F). NTC stands for negative temperature coefficient, meaning that the resistance decreases with rising temperature. In comparison, a positive temperature coefficient (PTC) causes the resistance to increase. Warming the battery with your hand is sufficient to detect a small change in resistor value when looking for the correct terminal on the battery.

After repair, the fuel gauge might not work, is inaccurate or provides wrong information. The battery may need some sort of an initialization/calibration process by fully charging and discharging the pack to reset the flags. A “flag” is a measuring point to mark and record an event(See BU-603: How to Calibrate a “Smart” Battery)

The circuits of some smart batteries must be kept “alive” during the replacement of the cells. Disconnecting the voltage for only a fraction of a second can erase vital data in the memory. An analogy is open-heart surgery where doctors must keep all organs of the patient alive. The lost data could contain the resistor value of the digitized shunt that is responsible for the coulomb counter and other data.

To assure continued operation when changing the cells, supply a secondary voltage of same voltage level through a 100-Ohm resistor to the circuit before disconnection. Remove the outside supply only after the circuit receives voltage again from the new cells. Furthermore, some fuel gauge chips run wires to each cell. These must be reassembled in the correct sequence beginning with cell one, then two, three and so forth.

You will receive an email with a link to confirm your e-mail address.

Make sure you click on the link to VERIFY your email.

If you do NOT see the email please check your SPAM folder.

Click here to close this window and return to the GoodWe Website.

Q: Some accessories are missing.

A: If there are any missing accessories during installation, please check the accessory list to check the missing parts and contact your dealer or GoodWe local technical service center.

Q: The power generation of the inverter is low.

A: Check the following items:
If AC wire diameter is suitable;
Is there any error message displayed on the inverter;
If the option of inverter’s safety country is right;
If it is shielded or there is dust on the PV panels.

Q: I can’t find GoodWe inverter’s wireless signal Solar-WiFi.

A: Check the following items:
If the inverter was powered on by DC power;
Check if the Wi-Fi antenna/box on inverter is installed correctly;
Check if the yellow POWER LED is blinking. If not, please modify the communication mode as per the user manual instructions;
If there is no wireless signal yet, please reload Wi-Fi as per the user manual instructions.

Q: The yellow POWER LED on inverter is blinking ceaselessly.

A: When GoodWe Wi-Fi inverter has not been configured, the yellow POWER LED should be blinking. When the Wi-Fi has been configured successfully, the yellow POWER LED should be solid. When the yellow POWER LED blinks, it means Wi-Fi configuration was not successful. Please reconfigure Wi-Fi.

Q: How to configure Wi-Fi?

A: Please go to the download center of GoodWe official website to download the latest Wi-Fi quick installation instructions including APP quick configuration. If you can’t download, please contact GoodWe local technical service center.

Q: Wi-Fi configuration is finished, but there is no monitoring data.

A: After wifi has been configured, please go to the Goodwe monitoring portal to register your details.

Q: The user manual is lost.

A: Please go to the download center of GoodWe official website to download the relevant type of Online user manual. If you can’t download, please contact GoodWe technical local service center.

Q: The red LED indicator lights are on

A: Please check the error message displayed on the inverter’s screen and then refer to the frequently ask questions and answers on the user manual to find out the relevant troubleshooting method to resolve the problem. If the problem persists, please contact your dealer or GoodWe local technical service center.

Q: If the inverter’s standard DC terminal is lost, can I make another one by myself?

A: No. The use of other terminals will cause the inverter’s terminals to burn down, and can even cause internal damages. If the standard terminals are lost or damaged, please contact your dealer or GoodWe local technical service center to buy the standard DC terminals.

Q: The inverter doesn’t work or the screen has no display.

A: Please check if there is DC power from PV panels, and make sure the inverter itself or external DC switch is on. If it is the first installation, please check if the “+” and “-” of DC terminals are connected inversely.

Q: Does the inverter need to be earth ground?

A: The AC side of the inverter is force to earth. After the inverter is powered on, the external protection earth conductor should be kept connected.

Q: The inverter displays off power grid or utility loss.

A: If there is no voltage on the AC side of the inverter, please check below items:
Whether the grid is off
Check if AC breaker or other protection switch is off;
If it is the first installation, check if AC wires are well connected and null line , firing line and earth line have one-to-one correspondence.

Q: The inverter displays power grid voltage over limit or Vac Failure.

A: The inverter detected AC voltage beyond safety country setting range. When the inverter displays error message, please use multi-meter to measure AC voltage to check if it is too high or too low . Please refer to the power grid actual voltage to choose a suitable safety country. If it is the first time to install, check if AC wires are well connected and null line, firing line and earth line have one-to-one correspondence.

Q: The inverter displays power grid frequency over limit or Fac Failure.

A: The inverter detected AC frequency beyond safety country setting range. When the inverter displays error message, check the current power grid frequency on the inverter’s screen . Please refer to the power grid actual voltage to choose a suitable safety country.

Q: The inverter displays the insulation resistance value of PV panel to earth is too low or ISO Failure.

A: The inverter detected the insulation resistance value of PV panel to earth is too low. Please reconnect the PV panels one by one to check if the failure was caused by a single PV panel. If so, please check the PV panel’s earth and wire if it is broken.

Q: The inverter displays leakage current is too high or Ground I Failure.

A: The inverter detected the leakage current is too high. Please reconnect the PV panels one by one to make sure if the failure was caused by a single PV panel. If so , check the PV panel’s earth and wire if it is broken.

Q: The inverter displays PV panels’ voltage are too high or PV overvoltage.

A: The inverter detected PV panel input voltage is too high. Please use multi-meter to measure PV panels’ voltage and then compare the value with the DC input voltage range which is on the inverter’s right side label. If the measurement voltage is beyond that range then decrease the PV panels quantity.

Q: ES does not start up with ONLY battery connected.

A: Please make sure the voltage of battery is higher than 48V, otherwise battery cannot start ES up. If the battery voltage is ok but the problem persists, please contact GoodWe local technical service center.

Q: ES does not start up with ONLY PV connected.

A: Please make sure the voltage of PV is higher than 125V. If everything is ok but problem persists, please contact GoodWe local technical service center.

Q: There is a large power fluctuation on battery charge/discharge.

A: Check the following items
1.Check if there is a fluctuation on load power;
2.Check if there is a fluctuation on PV power on GoodWe Portal.
If everything is ok but the problem persists, please contact GoodWe local technical service center.

Q: Battery configuration

A:1. Lithium battery must connect to BMS communication;
2.Nominal voltage for Lead-acid battery is 48V, max charge voltage 60V;
3.For example, serial connection of 4*12V 100Ah lead-acid battery, the capacity will still be 100Ah.

Q: Lithium battery connection

A: For connection of Ezconverter/battery and ES, please refer to battery connection SOP, chose right battery brand and fill in battery capacity manually.

Q: Battery cannot charge to 100%

A: LG battery will stop charging at SOC 95%.
B: Battery will also stop charging when battery voltage reaches charge voltage set on EzManager APP.

Q: About Out-Put Power Limit.

A:1.Can set on APP the max out-put power to grid;
2.If Out-put Power Limit set as 0W, then there might still have max 100W to grid.
3. EzMeter should be installed correctly

Q: SOC changed after restart the system.

A: When restarting the system, SOC only depends on the battery voltage. After a whole charging and discharging process, SOC will be accurate.

Dewesoft Li-ION battery packs perfectly match our data acquisition systems for stand-alone, in-vehicle, or remote test and measurement applications.

How to replace a ds battery without losing data

Main Features

  • RUGGED AND RELIABLE: Battery packs are built in rugged aluminum chassis, machined out of a single brick of aluminum for reliable operation on the field. Only high-quality Li-Ion batteries are used.
  • LARGE CAPACITY: Enough battery capacity and power for powering large data acquisition systems for a couple of hours.
  • HOT-SWAP FUNCTIONALITY: Internal Li-Ion batteries are hot-swappable, meaning they can be replaced during the measurement to ensure your data acquisition system never runs out of power.
  • DAISY CHAIN: Battery packs can be daisy-chained together to further increase autonomy.
  • ISOLATED POWER SUPPLY: For in-vehicle measurements, an isolated power supply on battery packs will guard you against unwanted ground loops.
  • REVERSE POLARITY PROTECTION: Battery packs are protected against wrong connections to the input power supply.
  • STATUS INDICATOR: The battery pack comes with an LCD status indicator as well as a USB connection to the DAQ device so are able to see the battery life on Windows desktop as well as in the DewesoftX software directly.

A Perfect Fit for Dewesoft DAQ Systems

Both battery packs – DS-BP2i and DS-BP4i are engineered to work perfectly together with SIRIUS data acquisition systems and SBOX data logger instruments.

The clever click mechanism enables the battery pack chassis to attach to the SIRIUS, SBOX, or any other SIRIUS-compatible chassis.

Of course, that does not stop you to use DS-BP2i/DS-BP4i battery packs with other systems like KRYPTON, IOLITE, or IOLITE LX or even completely power a 3rd party system.

How to replace a ds battery without losing data

Enough Power to Run Large DAQ Systems for Hours

Battery packs ensure enough power for your on-road and field test and measurement applications so you don’t have to worry about losing any data due to lack of power supply.DS-BP2i total capacity is 192Wh and DS-BP4i total capacity is rated to 384Wh.

In other words, DS-BP4i can run 32-channel isolated SIRIUS DAQ systems by providing a power supply to 32 sensors, together with a powerful SBOX data processing computer and data logger for 3 hours.

And if you need even more power for your measurements, both battery packs have hot-swapped functionality, meaning you can exchange internal Li-ion batteries on the fly during measurement and extend power even further.

Daisy Chain Feature for Even Longer Battery Life

When your field tests require even longer battery life, Dewesoft battery packs can be daisy-chained which extends the autonomy of your data acquisition system even further.

There is no limit in the number of battery packs you can daisy chain into single battery system.

How to replace a ds battery without losing data

Battery Status Visible Everywhere

Dewesoft battery packs are equipped with a USB connection. USB is used to connect the battery pack to the computer (SBOX, KRYPTON CPU, or any other PC). Battery packs will identify themselves as a native battery for Windows OS (HID UPS protocol).

Windows OS will display a battery status icon and the Windows taskbar will also show the current status of batteries inside Dewesoft battery packs.

The battery pack status information is also available and can be observed inside DewesoftX data acquisition software.

How to replace a ds battery without losing data

Related Products and Solutions

How to replace a ds battery without losing data


The world’s most versatile, powerful, high-dynamic USB and EtherCAT data acquisition system. Connect any signal and sensor. Packed with the latest DAQ technology. Free DAQ software included.

How to replace a ds battery without losing data

Powerful data processing computer and highly reliable SSD data logger for SIRIUS modular data acquisition systems for mobile and field test and measurement applications.

How to replace a ds battery without losing data


Versatile 8-channel data acquisition system and data logger with cutting edge signal conditioning at an attractive price with analog, counter, and CAN inputs.

How to replace a ds battery without losing data


Extremely rugged (IP67 degree of protection) and fully isolated rugged data acquisition system for the most demanding testing in harsh environments. High-precision, high-dynamic, and high-bandwidth for all types of analog signals from IEPE accelerometers to strain gages.

How to replace a ds battery without losing data


Extremely rugged data logger and powerful data processing computer with IP67 degree of protection and wide temperature rating of -40 to +50 °C. SBOX waterproof is a perfect companion to the SIRIUS waterproof data acquisition systems.

How to replace a ds battery without losing data


KRYPTON CPU is the smallest, a highly portable and extremely rugged IP67 data logger and data processing computer for data recording and analysis in extremely harsh environments with wide operating temperature range -40 to +70°C. It perfectly completes the KRYPTON data acquisition modules to form a stand-alone DAQ system.

Since the 4.0.0 System Update on the Nintendo Switch console, users now have the option to transfer an entire User Account and Save Data from one console to another, including to a Switch Lite, or the Switch OLED. Nintendo also released a new standard Switch unit with extended battery life, so quite a few Nintendo Switch players are taking the step to upgrade their system and transfer “their life”. Here’s how!

Data transferred is moved one user at a time, so you are able to choose which User Account you wish to remove from the source Switch, and transfer its contents to another console that does not have the User Account.

If you’re just moving data from one SD Card to another, check: how to transfer data between Nintendo Switch microSD cards.

Transfer Steps

Video Guide

Before starting the transfer, you must make sure you have met the following precautions:

  • Both Nintendo Switch Consoles (The Source Console with the Account and the Target Console you wish to transfer to) must have the 4.0.0 Update, be connected to the internet, and be plugged into a power source.
  • A Nintendo Account must be linked to the User Account you wish to transfer on the Source Console, and the Target Console cannot have that same Nintendo Account active.
  • The Target Console cannot have more than 7 users at the time of the transfer – you will have to have 6 or fewer.
  • The Target Console requires sufficient free space on the target console’s internal memory to receive the data that is being transferred – if the Account has a lot of data attached, be sure to have an SD card on hand.

Do You Have An Animal Crossing Island Save?

IMPORTANT: The process for transferring your Animal Crossing Island Save File (including island and resident data) is different than moving your Save Data to a new Switch! Before starting the User Transfer, download the Island Transfer Tool from the eShop first! See the step by step process for doing so here.

Source Console

  1. On the Console with the User Account you wish to transfer, select the System Settings and drop down to Users and then look for Transfer Your User and Save Data.
  2. Select Next twice, and then select Source Console if this is the console you want to transfer from.
  3. Ensure that the console is both plugged into a power source, and has internet active, and move to the Target Console.

Target Console

  1. On the Console you are moving the User Account to, select System Settings and drop down to Users and then look for Transfer Your User and Save Data.
  2. Select Next twice, and then select Target Console if this is the console you wish to transfer to.
  3. Ensure that the console is also plugged in to a power source and connected to the internet, and then select Sign In and choose to sign in using your Nintendo Account e-mail address or your Sign-in ID.
  4. Enter your credentials and password and then select Sign in, and then Next, and move to the Source Console again.

Source Console

  1. Once the Target Console has been signed into, it will begin searching for the Source Console. Once it is found, select the Transfer option.
  2. Wait for the Transfer to complete fully, and then select End to complete this process.

Note this will entirely remove the User and Save Data from the Source Console. If there are no more existing users on the Source Console following the transfer, a placeholder account will be created.

You can also do this repeatedly, and move accounts as many times as you wish – even onto a console that you moved an account off of.

If you’re keeping the old Switch, you can of course also re-add your old Nintendo Account login to the device, as Nintendo Switch accounts can be used on multiple units at the same time. Well, sort of. You can’t play downloaded games on two consoles with the same login — so keep that in mind.

Literature on fast charging is reviewed from a multiscale perspective.

Extreme temperatures and temperature/current inhomogeneities are considered.

Alternative fast charging protocols are critically evaluated.

No reliable onboard methods to detect lithium plating are currently available.

The links between cell and pack level performance are still not well understood.


In the recent years, lithium-ion batteries have become the battery technology of choice for portable devices, electric vehicles and grid storage. While increasing numbers of car manufacturers are introducing electrified models into their offering, range anxiety and the length of time required to recharge the batteries are still a common concern. The high currents needed to accelerate the charging process have been known to reduce energy efficiency and cause accelerated capacity and power fade. Fast charging is a multiscale problem, therefore insights from atomic to system level are required to understand and improve fast charging performance. The present paper reviews the literature on the physical phenomena that limit battery charging speeds, the degradation mechanisms that commonly result from charging at high currents, and the approaches that have been proposed to address these issues. Special attention is paid to low temperature charging. Alternative fast charging protocols are presented and critically assessed. Safety implications are explored, including the potential influence of fast charging on thermal runaway characteristics. Finally, knowledge gaps are identified and recommendations are made for the direction of future research. The need to develop reliable onboard methods to detect lithium plating and mechanical degradation is highlighted. Robust model-based charging optimisation strategies are identified as key to enabling fast charging in all conditions. Thermal management strategies to both cool batteries during charging and preheat them in cold weather are acknowledged as critical, with a particular focus on techniques capable of achieving high speeds and good temperature homogeneities.

How to replace a ds battery without losing data

How to replace the CMOS battery in a desktop computer

Use BIOS to overclock your computer

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Your device accepts memory cards with maximum capacities of 128 GB.

Depending on the memory card manufacturer and type, some memory cards

may not be compatible with your device.

• Some memory cards may not be fully compatible with the device. Using an

incompatible card may damage the device or the memory card, or corrupt the data

• Use caution to insert the memory card right-side up.

• The device supports the FAT and the exFAT file systems for memory cards. When

inserting a card formatted in a different file system, the device asks to reformat the

• Frequent writing and erasing of data shortens the lifespan of memory cards.

• When inserting a memory card into the device, the memory card’s file directory

appears in the My FilesSD card folder.

1. Remove the back cover and battery.

2. Insert a memory card with the gold-coloured contacts facing downwards.

How to replace a ds battery without losing data

3. Replace the battery and back cover.

Removing the memory card

Before removing the memory card, first unmount it for safe removal.

On the Home screen, tap AppsSettingsStorageUnmount SD card.

1 Remove the back cover and battery.

2 Pull out the memory card.

3 Replace the battery and back cover.

*Do not remove the memory card while the device is transferring or accessing

information. Doing so can cause data to be lost or corrupted or damage to the

memory card or device. Samsung is not responsible for losses that result from the

misuse of damaged memory cards, including the loss of data.

Formatting the memory card

A memory card formatted on a computer may not be compatible with the device. Format the

memory card on the device.

On the Home screen, tap AppsSettingsStorageFormat SD cardFORMAT SD


*Before formatting the memory card, remember to make backup copies of all

important data stored in the memory card. The manufacturer’s warranty does not

cover loss of data resulting from user actions.

Turning the device on and off

Press and hold the Power key for a few seconds to turn on the device.

When you turn on your device for the first time or after performing a data reset, follow the onscreen

instructions to set up your device.

To turn off the device, press and hold the Power key, and then tap Power off.

• If your device is frozen and unresponsive, press and hold the Power key and the

Volume key down simultaneously for more than 7 seconds to restart it.

• Follow all posted warnings and directions from authorised personnel in areas

where the use of wireless devices is restricted, such as aeroplanes and hospitals.

How can I remove or replace specific characters in my barcode to change what data is transmitted?

Applicable To

Advanced Data Formatting and 123scan Utility

Resolution / Answer

1. Download and install the Zebra 123scan Utility for Windows 32 or 64 bit – 123scan Utility

2. See article Creating an Advanced Data Formatting (ADF) Rule Using 123Scan Utility or following Creating an Advanced Data formatting (ADF) Rule How To Video ion the 123scan Utility page

3.We will use an example of removing a GS ( Group Separator ) character for a barcode.
The same steps can be used to remove different characters and replace with different characters

Sample barcode data that contains GS characters

4. Under Advanced Data Formatting Rule, choose “Add Action”, ” To All Patterns and Replace”, Select the GS character, then Save & Add Another

How to replace a ds battery without losing data

5. Select ” Skip To Start, Save & Add Another

How to replace a ds battery without losing data

6.Select ” Send All That Remains”, “Save”

How to replace a ds battery without losing data

7. Load the 123scan .scncfg file or scan the generated 123scan programming barcode. When a barcode is scanned that contains GS characters, they will not be transmitted

Sample Barcode with GS characters removed

8. If you need to replace a GS or another character with a different character follow the steps with the exception of step 4.
For step 4. Under Advanced Data Formatting Rule, choose “Add Action”, ” To All Patterns and Replace”, Select the GS character, Insert the replacement character you want, then Save & Add Another.
We used the # (pound) character as an example of a replacement character.

9. The barcode data will now transmit with # (pound) character replacements

(Reuters) – Medical device maker St. Jude Medical Inc said on Friday it has notified doctors to stop implants of one of its cardiac pacemakers, citing reports of problems with electronic data reporting caused by a battery malfunction that could put patients at risk.

The affected device is the Nanostim leadless cardiac pacemaker (LCP). St. Jude, which is being acquired by Abbott Laboratories, said it had seven reports of lost telemetry and heart pacing output from the devices.

Of a total of 1,423 Nanostim devices implanted worldwide, 1,397 remain in service and represent a potential risk to patients, the company warned.

There have been no reports of patient injury associated with the malfunction, St. Jude said.

“We are currently working to ensure our physician partners worldwide have the information they need to effectively manage their patients,” St. Jude Chief Medical Officer Mark Carlson said in a statement, adding that the company remains committed to developing leadless pacing technology.

In a letter to doctors, St. Jude said they should not implant any Nanostim pacemakers they might have in stock and instead return them to the company. It said device replacement is recommended, with priority given to patients with implants of the longest duration.

Pacemakers are used to keep a patient’s heart beating at a normal healthy rate.

The seven reports of problems occurred between 29 and 37 months after implant, St. Jude said.

Two of the affected patients received replacement LCPs, three received more traditional pacemakers and two are awaiting replacement devices, it said. The company said it will analyze returned LCPs.

The LCP issue follows other recent problems with St. Jude heart devices. Earlier this month, the company announced a recall of some of its other implanted heart devices due to risk of premature battery depletion, which was linked to two deaths in Europe.

That recall involved ICDs and CRT-Ds that are used to shock a dangerously racing heart back to its normal rhythm, or to help maintain a normal heart rhythm. ICDs are implantable cardioverter defibrillators, while CRT-D stands for cardiac resynchronization therapy defibrillator.

St. Jude shares were off 71 cents, or nearly 1 percent, at $78.30 on the New York Stock Exchange.

Reporting by Bill Berkrot in New York; Editing by Matthew Lewis and Dan Grebler

Read this guide for tips and advice on how to maximise the life and performance of your EV battery.

Electric car batteries will last a long time, but there are things you can do to maintain your EV battery to help improve its longevity. Here are some quick tips or you can scroll down the page for more detailed advice.

Quick tips to maintain an electric car battery:

  1. Minimise rapid charging
  2. Keep the “State of Charge” between 20-80%
  3. Only charge fully for long trips
  4. Take your car for regular, short drives
  5. Don’t leave the car parked in one spot for too long

How long does an EV battery last?

Although battery tech has been around for ages, we’re still learning about the longevity of electric car batteries. But the good news is that so far… it’s good news.

There are plenty of examples of electric cars covering well over 100,000 miles and many early mass-produced EVs are on the used car market with the battery’s State of Health (SOH) still high.

Data over the past 10 years suggests battery health decreases by about 10% over five or six years. However, this doesn’t necessarily impact range and battery technology has improved rapidly in the last few years, so expect this figure to get better.

Most manufacturers offer a warranty on the battery for eight years or 100,000 miles which is much longer than most people keep a vehicle.

Battery performance and longevity will also vary between manufacturers and models. Luckily we know that high use of electric cars does not negatively impact the battery life – so drive away!

Can you minimise battery degradation in electric cars?

Battery degradation is a natural process and over time any battery will lose some “juice”.

However, it’s a lot more important to maintain the battery in an electric car because it’s something that will be used for a long time by you or someone after you. We also want to ensure maximum range and performance from our electric cars while we’re using them.

In addition, many electric car batteries go on to have a “second life” once their usefulness in powering four wheels has waned. These batteries are often used for energy storage, meaning one lithium-ion battery originally designed for an EV could be used for decades.

Obviously, we want to maximise the life of the battery as it benefits us but also minimises the impact on the environment.

Fortunately, there are things you can do to maximise the life of your car’s battery. Here’s a few tips to help maintain an electric car battery.

Medtronic’s Evera, Viva, Brava, Claria, Amplia, Compia, and Visia Implantable Cardioverter Defibrillators (ICDs) and Cardiac Resynchronization Therapy (CRT-Ds) are devices that provide pacing for slow heart rhythms, and electrical shock or pacing to stop dangerously fast heart rhythms.

ICDs and CRT-Ds are both implanted under the skin in the upper chest area with connecting insulated wires called “leads” that go into the heart. A person may need an ICD or CRT-D if their heartbeat is too slow (bradycardia), too fast (tachycardia), or needs coordination to treat heart failure.

Reason for Recall

Medtronic is recalling the specified ICDs and CRT-Ds due to an unexpected and rapid decrease in battery life. The decrease in battery life is caused by a short circuit and will cause some devices to produce a “Recommended Replacement Time” (first warning that the battery is low) earlier than expected. Some devices may progress from “Recommended Replacement Time” to full battery depletion within as little as one day.

If the user does not respond to the first warning, the device may stop functioning. The likelihood that this issue will occur is constant after approximately three years after device use.

There have been 444 complaints regarding these devices. There are 264 Medical Device Reports, with 18 injuries including people experiencing bradycardia (slow heart rhythm) or heart failure symptoms. Zero deaths have been reported.

Who May be Affected

  • Health care providers using the affected Evera and Visia family ICDs, Viva, Claria, Amplia, and Compia Family CRT-Ds
  • Patients who require care using he affected Evera and Visia family ICDs, Viva, Claria, Amplia, and Compia Family CRT-Ds

What to Do

On February 3, 2021, Medtronic sent an Urgent Medical Device Correction letter to all affected health care professionals. The letter gave the following information:

Patient Management Guidance

  • Continue normal follow-up per local clinical protocol.
    • Data suggests that battery failure is less common in patients who use the battery most, such as for frequent pacing support and higher voltage therapy.
    • Where possible, take advantage of the CareLink™ home monitoring system and the wireless low battery voltage CareAlert.
    • The low battery voltage audible alert is shipped ‘On’ with high-urgency tones; Remind patients to contact their clinic if they hear an audible alert, particularly since they may be opting to delay clinic visits due to COVID-19 guidance.
    • Inform a Medtronic Representative of any unexpected device behaviors.
    • Be aware that the inability to operate the device, or transmit data, may be an indicator that the device has experienced this issue.
    • For non-pacing dependent patients or for primary prevention ICD patients, replacement within one week of an unexpected RRT notification is recommended.
    • For pacing dependent patients, immediate replacement is recommended following an unexpected RRT notification. Note: For all patients, this issue can also manifest as an unexpected change in the remaining longevity estimate cannot be attributed to programming changes, or changes in use conditions.

    The letter also stated:

    • Medtronic medical staff in consultation with the Independent Physician Quality Panel recommends against replacing the device due to the low rate of occurrence and the low risk for permanent harm if immediate replacement occurs in response to an unexpected RRT.
    • Patients and clinicians may determine if a specific device is affected by looking up the serial number on Medtronic’s Product Performance website:
    • Clinicians should also:
      • Complete a Clinician Confirmation Certificate (included with the correction letter) and return via email to [email protected]
      • Notify Medtronic of any adverse events or quality problems associated with your use of this product.

      Contact Information

      Customers with questions should contact their local Medtronic Representative or Medtronic Technical Services at:
      Tachycardia Devices
      [email protected]

      Full List of Affected Devices

      Additional Resources:

      How do I report a problem?

      Health care professionals and consumers may report adverse reactions or quality problems they experienced using these devices to MedWatch: The FDA Safety Information and Adverse Event Reporting Program using an online form, regular mail, or FAX.

      How to replace a ds battery without losing data

      The problem with hanging on to old consumer products is that the original batteries no longer hold a charge. To make matters worse, replacement batteries ordered online have likely been sitting on a warehouse shelf for years and are no better. [Larry G] faced this issue with his old Nintendo DS Lite. Luckily he remembered a hack from his youth where a friend’s Dad had duct-taped a massive alkaline D-cell battery pack to the back of a Gameboy to give it a longer life. And so [Larry] gave new life to his Nintendo DS Lite by designing and 3D printing a case for a battery with an even larger capacity than the original.

      He first obtained a 2400 mAh 18650 lithium-ion cell, one with over voltage and under voltage protection. With that as a guide, he designed and 3D printed a case for it made up of four printed parts. The case was needed because the 18650 doesn’t fit in the NDS Lite’s battery compartment. Instead, one of the parts, which he calls the fake battery, fits in the compartment and has copper strips glued to it for connecting to the NDS Lite. From there, wires go to another part wherein sits the 18650. The remaining parts secure it all in place. Charging is done using the NDS Lite’s built-in charger. Even though the new case adds significant bulk, it actually fits well in the hand.

      No doubt many of you have your own old NDS Lite sitting around that can benefit from this repair. The project details and STL files can be found on his page using the above link.

      This is also [Larry]’s entry for our Repairs You Can Print contest which puts him in the running for one of two Prusa i3 Mk3s plus the multi-material upgrade.

      5 thoughts on “ Repairs You Can Print: Nintendo DS Lite With New Battery And Case ”

      Where’s the BMS. D cell to lithium with original built in charger? This has nothing to do with 3D printing of course. Just safety.

      Cool idea for battery expansion, are the little bits that hold it on up to it sticking out and weighing more? Some battery doors come off and get lost others are a real pain to open. I am sticking a lithium cell with silicone onto a 2xAAA powered headphone radio. Ugly but workable when carried in a belt case. I will only need to charge it with a single cell lithium charger once a month.

      I wanted to do a write-up on this because it took me hours of research to figure this out myself, and I rarely see people mention it. Also, if there is a better / more specific subreddit for this, please let me know so I can cross-post it there.

      This is only necessary if you replace the clock battery and want to keep your save file! Starting a new game has the same effect.

      I recently replaced the clock battery in my childhood copy of Pokémon Emerald (the only one I still own). I did the replacement easy-peasy, fired it up, and didn’t get the “internal battery has run dry” message. Sweet! I planted a few berries, watered them, and shut it off, expecting it to finally work again. However, I booted it up the next day, and. Nothing. Not even a sprout.

      Confused, I did some research. I knew it was not the “berry glitch” from R/S because that had been fixed in Emerald. I finally learned that in order for the clock to run again, the game’s time value must be lower than the RTC’s time value. The clock works by counting up, second by second, indefinitely from 1/1/2000 00:00:00. This value is then compared to the last value recorded in the save file to calculate how much time has passed since the game was last played.

      Essentially, the value stored in the game is probably at least 10 years from 1/1/2000, meaning that without starting a new game, one would have to wait that amount of time before time would start to pass in-game again. At which point, the new battery would probably be dead again anyway.

      Now, this might not be a big deal for resellers or people who just picked up a copy of the game, since starting a new game resets the saved clock value. However, this was my OG save file from 2005 with over 100 hours, and there was no way I was starting a new game.

      After even more research, I found that you can edit the value of the clock in two ways: with a cartridge dumper tool and a PC (I don’t own one of these tools and I doubt very many of you do), or with this little piece of homebrew Nintendo DS software called rtcread-ds. The second option makes a lot of sense – all you need is a DS or DS Lite and a flash card. It took me forever to find this program, but once I tried it out, it worked like a charm!

      Here is a quick guide on how to get the clock running again at the correct time IRL:

      Put rtcread-ds on flash card, insert this and the Gen 3 Pokémon game into the DS

      Boot into rtcread-ds

      Select “read RTC from slot-2”. It should be somewhere close to 1/1/2000 if there is a fresh battery in the game.

      Select “write to RTC” and enter the current date. Write this value to the game.

      These first four steps will be sufficient to get your berries growing again, but if you are like me and would be bothered if the in-game time was still not correct, you can fix it with the following steps:

      5. Boot into the game. Check the clock in your house in Littleroot. Make note of what time it is and find how far ahead/behind it is compared to the actual time IRL.
      6. Boot back into rtc-ds on the flash card and adjust the clock value by whatever the difference was in step 5. NOTE: the value you set it to will probably not be the actual time. The time is determined by the difference between the two values, not the actual value of the RTC.
      7. Boot back into the game and check the clock to verify the in-game time is correct, and that’s it!

      I hope this can help somebody, because it took me hours of research to find out about this easy solution. Now I can grow berries, get Espeon/Umbreon, and explore Schoal Cave at low tide again for the first time in years, on the same save file I had as a kid!

      How to replace a ds battery without losing data

      Boston Scientific made a historic choice in 2002 to start investing in the design of longer-lasting devices – a choice that benefits both patients and physicians. EnduraLife Battery Technology powers a dozen Boston Scientific device families with a dependable, durable energy source that continues to outlast the competition.

      How to replace a ds battery without losing data

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      1. Boston Scientific ICDs and CRT-Ds with contemporary battery technology have 1.98 Ah. Medtronic ICDs and CRT-Ds have 1.0 Ah. Amplia MRI CRT-D Surescan DTMB2D4 UK 2016 Manual pg 30. Viva XT CRT-D OUS Manual DTBA2D1 2013 page 28. Evera XT DR ICD OUS Manual DDBB2D4 2014 page 28. DYNAGEN™ EL ICD, DYNAGEN™ MINI ICD, INOGEN™ EL ICD, INOGEN™ MINI ICD, ORIGEN™ EL ICD, ORIGEN™ MINI ICD Physician’s Technical Manual. Part Number: 359050-003 EN US 2014-01. DYNAGEN™ CRT-D, DYNAGEN™ X4 CRT-D, INOGEN™ CRT-D, INOGEN™ X4 CRT-D, ORIGEN™ CRT-D, ORIGEN™ X4 CRT-D Physician’s Technical Manual. Part Number: 259049-004 EN US 2014-04.
      2. PHYSICIAN’S TECHNICAL MANUAL DYNAGEN™ EL ICD, DYNAGEN™ MINI ICD, INOGEN™ EL ICD, INOGEN™ MINI ICD, ORIGEN™ EL ICD, ORIGEN™ MINI ICD 2014 page 27-29. PROTECTA™ XT VR D314VRM 2013 page 330. EVERA™ XT VR DVBB1D4 2013 page 24. AnalyST™, AnalyST Accel™, Current™, Current Accel™, Fortify™, Fortify™ ST, Promote™, Promote Accel™, Promote™ Q, Unify™ Devices User’s Manual 2013 page 29. St. Jude Medical™ High-Voltage Devices User’s Manual 2013 page 16.
      3. Haarbo J, Hjortshoj S, Johansen J, Jorgensen O, Nielsen J, Petersen H. Device Longevity in Cardiac Resynchronization Therapy Implantable Cardioverter Defibrillators Differs Between Manufacturers: Data from the Danish ICD Registry. Presented at HRS 2014. common/presentation-detail.aspx/15/35/1241/9000. Boston Scientific = 136 patients, Medtronic = 651 patients, St. Jude Medical = 1,587 patients, Bitronik = 369 patients. Time to exchange of the device because of battery depletion or device failure recorded in the Danish ICD Registry was the endpoint. The four-year survival rate for devices in the Danish Registry study was 81.1% for Medtronic and 95.7% for Boston Scientific (P<0.01).
      4. J. Williams, R. Stevenson. Contemporary cardiac resynchronization implantable cardioverter defibrillator battery longevity in a community hospital heart failure cohort. Presented at HFSA 2014. https://www.onlinejcf. com/article/. S1071-9164(14)00389-3/fulltext. Boston Scientific = 53 patients, Medtronic = 28 patients, St. Jude Medical = 10 patients. Four-year survival rate calculated using device replacements for battery depletion as indicated by ERI.
      5. Ellis CR, Dickerman DI, Orton JM, Hassan S, Good EG, Okabe T, Andruilli JA, Quan KJ, Greenspon AJ. Ampere Hour as a Predictor of Cardiac Resynchronization Defibrillator Pulse Generator Battery Longevity: A Multicenter Study. PACE 2016 doi: 10.1111/pace.12831 first published online 11-MAR- 2016. The five major institutions performing the study include, at Vanderbilt University, Henry Ford Hospital, University of Michigan, Thomas Jefferson University, Cooper Health System, North Ohio Heart Center. Boston Scientific = 322 patients, Medtronic = 794 patients, St. Jude Medical = 186 patients. Five-year survival rate calculated using device replacements for battery depletion as indicated by ERI.
      6. Landolina M, Curnis A, Morani G, Vado A, Ammendola E, D’onofrio A, Stabile G, Crosato M, Petracci B, Ceriotti C, Bontempi L, Morosato M, Ballari GP, Gasparini M. Longevity of implant Cardioverter-defibrillators for cardiac resynchronization therapy in current clinical practice: an analysis according to influencing factors, device generation, and manufacturer. Europace2015;17:1251-58. doi:10.1093/eurospace/euv109. First published online: May 14, 2015. Medtronic = 532 patients, Boston Scientific = 291 patients, St. Jude Medical = 106 patients, Biotronik = 20 patients, Sorin = 69. Five-year survival rate of latest marketed devices (between 2006 to 2010) calculated using device replacements for battery depletion as indicated by ERI.
      7. Zanon F, Martignani C, Ammendola E, Menardi E, Narducci ML, De Filippo P, Santamaria M, Campana A, Stabile G, Potenza DR, Pastore G, Iori M, La Rosa C, and Biffi M. Device Longevity in a Contemporary Cohort of ICD/CRT-D Patients Undergoing Device Replacement. Doi:10.1111/ jce.12990, First published online 20-APR-2016. Comparison of device longevity by Kaplan-Meier curves of CRT-D systems extracted between March 2013 and May 2015. Medtronic = 195 patients, Boston Scientific = 157 patients, St. Jude = 72, Biotronik = 9.
      8. Provided by Dr. Ernest Lau on 04/29/15 in support of Lau E, Wilson C, Ashfield K, McNair W, McEneany D, Roberts M, Large Capacity LiMnO2 Batteries Extended CRTD Longevity in Clinical Use Compared to Smaller Capacity LiSVO Batteries Over 6 Years. Presented at HRS 2015. Medtronic = 62 patients, Boston Scientific = 27 patients, St. Jude = 66 patients. Five-year survival rate calculated using device replacements for battery depletion as indicated by ERI.
      9. von Gunten S, Schaer BA, Yap SC, Szili-Torok T, Kühne M, Sticherling C, Osswald S, Theuns DA. Longevity of implantable cardioverter defibrillators: a comparison among manufacturers and over time. Europace. 2015 Nov 25; Epub 2015 Nov 25. Total patients = 3436.
      10. Alam MB, Munir MB, Rattan R, Adelstein E, Jain S, Saba S. Battery longevity from cardiac resynchronization therapy defibrillators: differences between manufacturers and discrepancies with published product performance reports. Europace 016;doi:10.1093/europace/euw044. First published online: 22-MAR-2016. Kaplan Meier curves depicting survival of CRT devices free from battery depletion by device manufacturer. Battery Longevity in Cardiac Medtronic = 416 patients, Boston Scientific = 173 patients, St. Jude Medical = 57 patients. Previously evaluated these patients at a four-year survival rate calculated using device replacements for battery depletion as indicated by ERI. 2014; Europace (2014) 16,246-51.
      11. Shabanna Din, Shabanna, Mcgee, Rao, Archana, Wright, Jay D. Longevity of implantable cardioverter defibrillators: The impact of device manufacturer and device type on device longevity were assessed. Europace. 2015 Nov 25; Epub 2015 Nov 25. Total patients = 3436. Cardiostim Abstract 2016. Total patients = 1489.

      The law restricts these devices to sale by or on the order of a physician. Indications, contraindications, warnings and instructions for use can be found in the product labelling supplied with each device. Information for use only in countries with applicable health authority registrations. Material not intended for use in France.
      All cited trademarks are the property of their respective owners.

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      Boston Scientific is dedicated to transforming lives through innovative medical solutions that improve the health of patients around the world.

      ©2022 Boston Scientific Corporation or its affiliates. All rights reserved.

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      When it comes time to purchase a new set of deep-cycle, flooded lead-acid batteries, golf car fleet managers look for ways to save money. With many golf cars requiring 48-volt battery packs, one of the most common money-saving assumptions is that purchasing fewer batteries with higher voltages will be a less expensive alternative. For example, a typical 48-volt golf car may use eight 6-volt batteries, six 8-volt batteries, or four 12-volt batteries. Purchasing fewer batteries with a higher voltage is appealing because it reduces your upfront cost. However, the pack configuration should be based on a few more factors.

      The example below shows a comparison between three different packs utilizing three main battery voltages. As the table shows, the 6-volt system has a higher capacity than the 8-volt and 12-volt systems. A typical round of golf will require about 40 minutes of run time while discharged at 56 amps. With all three configurations, the batteries have more than enough capacity to get through two rounds.

      However, one thing to keep in mind is the effect of depth of discharge (DOD). A battery’s DOD is defined as the capacity taken out of the batteries as a percentage of its overall capacity before recharging. The lower the depth of discharge in lead acid batteries, the greater number of cycles they will deliver. Theoretically, a battery that is routinely discharged to 30 percent DOD will last about 2.2 times as long as a battery that is discharged to 60 percent. With the 6-volt and 8-volt systems, a day’s worth of golf car use discharges the battery pack to a lesser extent. This can reduce your overall operating costs in the long run, by yielding greater cycle life and ultimately extending the time between replacements.

      The pack configuration that fits a given application can be determined by weighing upfront costs, battery capacity and cycle life. The price points listed below show that an 8-volt and 6-volt pack costs roughly 13 percent and 37 percent more than a 12-volt pack respectively. Although the initial cost is greater for the 6-volt and 8-volt packs, these configurations give a much greater return on investment*. Armed with this information, you can make a better decision on which battery configuration truly gives you the most cost savings.

      *Vehicles utilizing regenerative braking and the use of opportunity charging can reduce the depth of discharge and extend cycle life.

      How to replace a ds battery without losing data

      The values above were obtained from a study of various batteries in the industry. Expected cycle life is theoretical and is highly dependent on other factors, such as maintenance and battery brand. Price points were obtained by comparing the three different classes of batteries at an average retail price.

      If your iPhone is covered by warranty, AppleCare+, or consumer law, we’ll replace your battery at no charge. Not sure if you’re covered? Check if you have AppleCare+ by entering your iPhone serial number.

      If your iPhone has any damage that impairs the replacement of the battery, such as a cracked screen, that issue will need to be resolved prior to the battery replacement. In some cases, there may be a cost associated with the repair.

      See the chart below for battery replacement pricing for all iPhone models.

      iPhone battery and power repair costs – New Zealand

      iPhone model Covered by warranty, AppleCare+,
      or consumer law
      Out of warranty
      iPhone X, iPhone XS, iPhone XS Max,
      iPhone XR, iPhone 11 Pro Max,
      iPhone 11 Pro, iPhone 11, iPhone 12 Pro Max, iPhone 12 Pro, iPhone 12, iPhone 12 mini, iPhone 13 Pro Max, iPhone 13 Pro, iPhone 13, iPhone 13 mini
      NZ$ 0 NZ$ 119
      iPhone SE (3rd generation), iPhone SE (2nd generation), iPhone SE,
      iPhone 6s, iPhone 6s Plus,
      iPhone 7, iPhone 7 Plus,
      iPhone 8, iPhone 8 Plus,
      and all other eligible models
      NZ$ 0 NZ$ 85

      These prices apply only to battery repairs made by Apple. Pricing offered by Apple Authorized Service Providers may vary. We’ll add a NZ$ 25 shipping fee if your repair requires shipping and isn’t covered under warranty or AppleCare+. All prices are in New Zealand dollars and include GST.

      Your repair options

      Send in for repair

      Avoid waiting for an appointment or traveling to a store. We can send you a box right away to collect your iPhone. Arrange a shipment to an Apple Repair Center and we’ll replace your battery and deliver your iPhone back to you in approximately 6-8 days.

      Bring in for repair

      Make an appointment at one of our Apple authorized service locations. We’ll try to fix your iPhone during your visit. In more complex cases, we might need to send it to an Apple Repair Center. If we do, your iPhone will be ready for pickup in up to 6 days.

      To protect your data, learn how to get your iPhone ready for service.

      iPhone power issues

      Some iPhone power issues are caused by factors other than the battery. If you can’t turn on your iPhone, follow these steps to see if the issue resolves.

      We’ll test your iPhone to see if it has a battery issue or a different power issue. If your iPhone has a non-battery power issue, we’ll give you the repair price after we determine the cause. To identify your issue and set up service, start a service request.