How to replace a ds battery without losing data

Replacing the car battery may lead to the loss of your car’s settings. Everything of most modern cars depends on computers. They could be from the stereo to the transmission.

As far as older car models are concerned, this used to be a simple process: it only involved taking the old battery out and installing a new one. With late-model automobiles, cutting off the power to the computers may cause resetting to default and asking for security codes on restarting. These problems can be avoided with the help of an easy memory saving device.

The instructions for using the memory saver are easy to understand and follow. You can find 9-volt memory savers at most auto stores. They are not expensive and contain a 9-volt battery providing a stable charge to the system of the vehicle while the major car battery is detached.

To make sure the memory saver is functioning correctly, check its condition, and, after plugging it in, look for the indicator light to see if power is getting to the device. In some cases, the vehicle’s ignition switch must be turned to the ACC position. All other accessories must be turned off, such as the dome, the trunk, and the hood lights or they will drain the memory saver’s battery.

The next step is removing the battery. It is not difficult if you pay attention to your car’s model, make, and follow the instructions manual. Employ the needed wrenches and disconnect the cables from the terminals of the battery, starting with the negative/black one.

The installation of the new battery should be as quick as possible. Attach the cables again. Start with the positive one and ensure they are securely fixed to the terminals of the battery. After you make sure, everything is back in place, turn the explosion in the car and start the engine, next detach the memory saver. You will find your car with the same settings, waiting for you to enjoy your ride, as if nothing had ever happened.

Back in the 8-bit and 16-bit video game days, a small number of game carts contained a battery in them. They used a small lithium battery to allow games to be saved on the cartridge. Before the 8-bit days I don’t think they had saved games, and after the 16-bit days they used flash memory. So this is really a small number of 8-bit and 16-bit games that have batteries. But these batteries won’t last forever, in fact most of them are probably dead by now. Amazingly enough I have a cartridge at home that still has saved game data 20 years later!

Replacing the battery isn’t too difficult as long as you have some soldering skills, but doing so will erase any data saved on the cartridge. I own Phantasy Star 2 on the Sega Genesis (Mega Drive) that has some pretty incredible saved games that I want to preserve. So this is my attempt to replace the battery without losing saved games.

1. Opening the cartridge
This step may seem straightforward, but it may be more complex. The Sega Master System used standard philiips screws, but the Sega Genesis uses a security bit. So you may need to buy a security bit to open the cart, or find another creative way to open it. Once open you need to identify the type of battery. All Sega carts I’ve seen use a CR2032 lithium battery. Here are pictures of the front and back of Phantasy Star 2.

2. Buy replacement batteries
Once you know the type of battery you need to order replacement batteries. Yes, you need to order 2 batteries for this to work. I highly recommend you order “tabbed” batteries. Soldering directly onto batteries is difficult and can be dangerous. These replacement batteries should be fairly cheap. I got mine from newark for $2.57 each.

3. Add a battery in parallel
For this technique to work you need to solder a second battery onto the cartridge in parallel with the existing battery. In theory this battery will continue to provide power while replace the battery soldered into the cartridge itself. When soldering in this second battery be sure and get the polarity right.

4. Replace the battery
With the temporary battery in place, you can now desolder the old battery and solder in the new one. Removing the battery is very easy with a solder sucker, or you should be able to get it our using just solder wick. Once the original battery is out you can solder in the new one. You may need to bend the pins so they align with the holes in the circuit board. Also, as before make sure you get the polarity correct. Here’s a picture of the new battery soldered to the board after I removed the temporary battery.

You can now reassemble the cartridge and try the game out. When I did here’s what I got:

FAILURE! Crap, I just lost all my saved games.

So what happened? Well I can only think of one reason why this failed. Soldering requires very high temperatures, so the circuit traces around the battery were briefly subjected to temperatures in excess of several hundred degrees. A general rule of electricity is as temperature increases so does resistance. So my guess is the resistance increased causing a drop in voltage and current sufficient to cause a lose of stored data.

Is there a way to get around this and still make it happen? I can think of two ideas. First, if you used a voltage source higher than a single lithium battery (3.6V) the increased voltage might be enough to overcome the increased resistances from heat. Of course, this becomes tricky because too much voltage could “fry” the chips on the circuit board. The only other suggestion I can think of is to buy a retrode. This device allows you to read and write saved game info directly from the cartridge. So you could save the data to your computer, replace the battery, then restore the data.

Well even though my attempt was a failure, I’m glad I did it. It was a fun project, and these new batteries should last another 20 years.

Everyone has to deal with a number of minor issues with the car. The issues may come occasionally and you may have to deal with them either on your own or take the help of an expert. In most cases, you will take it to an expert mechanic or electrician and he’ll get fixed as per requirements.

Among the wide range of minor and major issues you have to face, one which is a very important issue is that, when you change your car battery, your dashboard settings are lost.

What happens is that when you pull out a damaged battery or weak battery that needs to be replaced, the power goes off and the internal system will be turned off, losing all its settings and data.

So, you will have to set things up again if you don’t care about this issue. You may need to take help from anyone who is familiar with the issue as well. Here we’ll be discussing a very helpful technique that will help you conserve the settings and still replace the battery without losing the data.

Let us start with the first step here

Explore the settings and prepare

Look at the dashboard of your vehicle and there you can see a screen showing the AC settings, the radio settings, the CD player and all the channels you have set up in your car. The screen will show the whole setup.

This record is stored and maintained in your car with the help of power drawn from your car battery. So, if you change the battery without any precautionary measure, you will lose it all and you will have to set things up again.

It could be hard if you don’t know your car. You may need to go through the manual, and if you have lost it, you will reach out to the dealer and get the manual to restore the settings on your own. This process could be hectic and time-consuming. So, we will try to keep these settings safe by using a simple tactic here.

The process of changing the battery while retaining its settings

So, now the first thing that you will need to do is to prepare and take out the battery. You will need two spanners, one for loosening the bracket and the other to take out the terminals. Open the bracket and then prepare to take out the terminal clips.

Before you loosen and pick out the terminal cables that are attached to the battery, you will need to attach the two wires of the car with a small 9 Volt battery. This will help keep the car to retain its settings until you install the new battery.

At first, you should be checking the battery if it has the required 9 volts and is charged. For this, either you should buy a brand new battery so there is no doubt in that or you may also check the battery with the help of a multimeter. If it shows the 9 volts reading, then it is safe and ready to use.

You should make it sure that the battery terminals are attached firmly to the correct terminal wires of the car before you remove the battery from these wires.

For this, you will need to connect the 9V battery first, by going to the positive terminal and then the black one the ground or negative terminal. After that, you may loosen the terminal brackets and pull out your battery. In this way, the 9V battery will keep the things in the dashboard charged, while you put back a new battery.

Keep the wires connected to the 9V battery until you place the wires back to the terminals of the new battery. After fixing the positive and negative terminal wires in the brackets, you may remove the 9V battery. In this way the current flow or the power supply will not be interrupted and the battery changing process won’t harm the settings in any way

By following the whole process you will never lose the settings and can easily replace the battery in your car.

How do you replace the battery on a SLC 500 CPU without loosing the program , since you need to remove the CPU , and the battery ? Is there a capacitor circuit in the CPU that will keep the circuit high for a certain amount of time ?

There is a capacitor on the board which maintains the memory for a substantial time (many minutes) when the battery is disconnected.

Have the new battery ready to go, and just change it as quickly as you can and you will be fine.

The SLC 5/03, SLC 5/04, and SLC 5/05 processors have a capacitor that provides at least 30 minutes of battery back-up while the battery is disconnected. Data in RAM is not lost if the battery is replaced within 30 minutes.

you should always have a backup though.

you should always have a backup !

we have had 2 processors that had the capacitor go bad and lost the program everytime power went out, they even had a battery installed.

may not be your case, but a back up of the current program before you turn off the power is a sure thing.

My recent experience with replacing the battery on a SLC was that the program didn’t last thirty seconds, let alone thirty minutes.

So be sure to have your backup.

the reason for that MIGHT be that the last person to "clear" the processor’s memory didn’t want to take the time to discharge the capacitor by shorting VBB to GND for about 60 seconds . so he shorted the capacitor leads instead .

oh – that’ll discharge it quickly . but .

that’s a LOT of capacitance in a very SMALL package – so a quick discharge might "punch through" the dielectric – and blow out the capacitor .

the next time you need it – it won’t hold up for long at all .

the VBB to GND method provides a "bleeder resistance" to limit the capacitor’s discharge rate . shorting the capacitor’s leads instead creates quite a "snap" .

in any event – make sure that you HAVE A BACKUP PROGRAM! .

the reason for that MIGHT be that the last person to "clear" the processor’s memory didn’t want to take the time to discharge the capacitor by shorting VBB to GND for about 60 seconds . so he shorted the capacitor leads instead .

oh – that’ll discharge it quickly . but .

that’s a LOT of capacitance in a very SMALL package – so a quick discharge might "punch through" the dielectric – and blow out the capacitor .

the next time you need it – it won’t hold up for long at all .

the VBB to GND method provides a "bleeder resistance" to limit the capacitor’s discharge rate . shorting the capacitor’s leads instead creates quite a "snap" .

in any event – make sure that you HAVE A BACKUP PROGRAM! .

I love your posts. Always good information in it. Thanks.

the reason for that MIGHT be that the last person to "clear" the processor’s memory didn’t want to take the time to discharge the capacitor by shorting VBB to GND for about 60 seconds . so he shorted the capacitor leads instead .

oh – that’ll discharge it quickly . but .

that’s a LOT of capacitance in a very SMALL package – so a quick discharge might "punch through" the dielectric – and blow out the capacitor .

the next time you need it – it won’t hold up for long at all .

the VBB to GND method provides a "bleeder resistance" to limit the capacitor’s discharge rate . shorting the capacitor’s leads instead creates quite a "snap" .

in any event – make sure that you HAVE A BACKUP PROGRAM! .

I agree! It always pays to know the rest of the story. I take heed to every word this man has to say. (A wealth of knowledge)

Looks like the issues are related – low battery on a JP-8000 may stop the MIDI out from transmitting.

I replaced the battery in my JP-8000, switched it on, MIDI was working but the display showed the Memory Damaged! error, so I reset to the factory settings. Everything appears OK now, but I haven’t tried anything much out to be 100% sure nothing went astray.

Also FYI I used an anti-static wrist strap and clipped it to the metal shield near the power supply. Obviously you turn the synth off and have everything unplugged, and it’s also a good idea to leave it off and unplugged overnight so the capacitors can discharge before you open it up. Use insulated screwdrivers and don’t touch anything you don’t need to touch. A wrist strap and insulated screwdrivers are cheap, so you may as well get them.

I attached a few pics of inside the synth. In one you can just see the battery holder under the metal shielding. In the other pic the 10 or so screws to remove are marked in red. Removing the one on the far left means you can tilt the shield up out of the way without the cables getting in the way so much.

The bad news is that it looks pretty tricky to swap the battery without losing your patches/performances. It could be possible to use jumpers to connect a fresh battery on to the contacts underneath the battery holder while swapping the battery out, but you’d have double voltage on the circuit for a short time which could damage something. Personally I’d find a tech.

Hope this helps.

Re: JP 8000 Battery Low

Post by realtrance » 18:57, 24 April 2011

The memory damaged error shows up when you’ve swapped out a battery; it shouldn’t be an issue.

You should, however, recalibrate the joystick and ribbon controller. Roland may still have service manuals to sell that walk you through diagnostic and calibration modes; if not, there are some posts on how-to you can find searching here, or using Google.

Replacing a car battery on older vehicles used to be simple. You unhooked the battery and installed the new one. Late-model vehicles, however, rely on computers that operate everything from the stereo to the transmission. If power is lost to the computers, the settings are lost and reset to default. This means the vehicle may feel different when driven, and you may have to enter a security code to access the stereo. Using a simple memory saving device when replacing your car battery will help you avoid these problems.

Step 1

Purchase a small 9-volt memory saver. These inexpensive devices are sold at most automotive supply stores. The memory saver is plugged into a 12-volt accessory outlet or cigarette lighter on your vehicle. It contains a 9-volt battery that provides a constant charge to the vehicle’s system while the main battery is removed.

Step 2

Ensure the memory saver’s 9-volt battery is fresh and then plug the memory saver into the accessory outlet or cigarette lighter. Also make certain the memory saver is working after it‘s plugged in. An indicator light should let you know if power is reaching the device. You may have to turn the vehicle’s ignition switch to the accessory or “ACC” position for the memory saver to work.

Step 3

Turn off all the other accessories on the vehicle, ensuring that all lights are off, including the dome light and trunk light. If the vehicle has a light under the hood, unscrew the bulb. Anything that requires electricity will quickly drain the 9-volt battery in the memory saver.

Step 4

Remove the car battery from the vehicle. Each make and model will vary, but most will require you to remove a plastic cover, guards and perhaps a mounting bracket. Use the necessary wrenches to remove these parts, then disconnect the negative (or black) and positive (or red) cables from the battery terminals. Remove the negative ( – ) cable first, followed by the positive ( + ) cable.

Step 5

Install the new battery as quickly as possible. Reconnect the positive cable before attaching the negative cable. Ensure both cables are securely fastened to the battery terminals and replace any guards, brackets or covers you removed.

Turn the ignition on the vehicle and start the engine. Unplug the memory saver from the outlet or cigarette lighter.

How to replace a ds battery without losing data

Nintendo is a Japanese electronics and video game company headquartered in Kyoto, Japan. Fusajiro Yamauchi found it as a producer of handmade hanafuda playing cards in 1889. It is one of the largest video game companies in the world. But it didn’t start its business from games. By 1963, it had tried many niche businesses without major success. Then in 1970, Nintendo developed itself as a video game company.

Nintendo developed the Nintendo DS in the year 2004. It is a dual-screen, handheld console, in which DS stands for (Dual Screen)

So, will the Nintendo DS work without the battery?

In its design, the developers built the Nintendo DS with two screens. To support this function or feature it needs a continuous flow of power and electricity, which would not be possible without a battery. So, it will not be possible for the DS to work if you remove the battery.

If you would like to know more about if the Nintendo DS will work without the battery, you will want to keep reading this article or watch this video below if you prefer.

Nintendo DS Battery

Nintendo DS uses a Lithium-Ion rechargeable battery. Its life depends upon the games being played. If you play a lot of games which require high graphics, then the battery will drain faster. The battery lasts for about 10 hours on normal usage, which is a good life duration when compared with others.

Nintendo has also launched further versions of DS such as:

  • Nintendo DS
  • Nintendo DS Lite
  • Nintendo DSi
  • Nintendo DSi XL

All of these worked great in the market and sold 154 million units in total. They featured the Nintendo DS with the ability for multiple DS consoles, in which consoles can interact with each other over a Wi-Fi connection within a short-range. But this type of play also puts a heavier load on the battery. Its main competitor was Sony’s PlayStation Portable (PSP).

Talking about running the console without the battery to operate any console, there are several connections and small electronic devices connected that work simultaneously to make the operation functional.

When a battery is plugged into the console, the capacitors present inside get charged. Capacitors are small electronic devices which are used to store electrical power or electricity and release it collectively to provide a jerk. This works as a starter for the console. When the battery is not present in the console, this capacitor doesn’t receive the power. When we plug in the adapter, it gets connected and releases the power which makes the console start and shows the connection of the adapter. But this doesn’t last long as the battery is required to maintain current to the capacitor so that the system can run properly. That’s why batteries play a crucial role in the Nintendo DS.

The Nintendo DS uses a Lithium-ion battery (Li-ion battery) which can be a safety hazard because it contains a flammable electrolyte. It can also cause a short circuit if charged quickly and could lead to an explosion and fire. So it’s important to take proper care of the batteries and use them as recommended. It is also prone to damage if used beyond a safe voltage range. Exceeding this voltage range can cause reduced life of the battery and cause safety issues. These are all reasons to follow the manual and use the Nintendo DS with its batteries only.

Replacing the Nintendo DS battery

You also need to be careful while replacing the battery. It is a simple device, but the battery needs to be processed in the right manner. Here are the steps you need to follow when replacing the battery.

Step 1- Remove the adapter and any games that you may have in the device, then turn it off before removing the battery.

Step 2- Use a screwdriver, usually a Phillips head screwdriver, to open the battery compartment at the back of the Nintendo DS. After removing all the screws, remove the battery carefully.

Step 3– Dispose of the battery by following the instructions on it.

Step 4– Put the new battery in place with the end with the two tabs first and then close it. Attach the cover and tighten the screws.

Step 5– Do not over tighten the screws. Then charge the battery before using the system.

These are the instructions provided by Nintendo. But what if you want to replace the battery without losing data?

For that, you need to keep the adapter plugged in, this will keep the capacitor charged. Remove the old battery carefully and replace it with the new one, then tighten the screws. You will need to do this process quickly as the capacitor will lose the current, which can lead to shutting down.

Nintendo DS Features

The Nintendo DS became a popular console due to its amazing features. Here are some features that make it stand out:

  • Microphone- Along with a touch screen, it also provides a microphone for the voice input in the game. Because of this, developers can produce games in which players can control the character with their voice. Also, it allows gamers to chat wirelessly while playing the games.
  • Wireless- The Nintendo DS provides wireless connectivity among gamers. They assumed that Nintendo would use Bluetooth technology in DS, but the company took one step forward and provided the wireless. It allows up to 16 people to play with each other wirelessly. It also adds in the game sharing among players without cartridges.


The Nintendo DS is a successful handheld console developed by Nintendo. We have learned that the Nintendo DS cannot be operated without the battery, as the current present in the capacitor will be lost within a few seconds and cannot be maintained without battery life. So, using the battery is the best option. We have also learned to be careful when replacing the battery and to properly take care of it.

There is nothing quite so enjoyable as bringing back memories from your childhood. We used to spend hours playing pinball in my friends basement and that really got me involved in everything retro!

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The Nintendo Switch is one of Nintendo‘s best selling gaming devices they have ever created. The thing that made the Nintendo Switch so popular was the fact that it could not only be used on the go.

If you’re looking to purchase Nintendo Switch games obviously you want to get the best deal available. Because you can purchase Switch games at so many different places people want to know who has.

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Hi, my name is Matt Robbs. My wife and I are huge retro enthusiasts and love anything and everything retro. We love sharing our hobby with friends and family but I know that they get tired of it so we decided to make this blog. We figured if we overshared online at least we would stop annoying our friends! I hope you enjoy the site and learn something new about the Retro community.

How to replace a ds battery without losing data
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Changing your car battery

You may have already seen our video on how to change a car battery (a worthwhile watch before attempting to fit your battery) and noted that you need a radio code for your vehicle. If this is the case, simply follow the below advice and you will be able to fit your battery without losing the car’s memory.

Changing a car battery is a relatively easy practice – though many people aren’t aware of this. However unless you put some thought into preparing for changing the battery you can find yourself unable to use your radio.

This is because some vehicle manufacturers – as an anti-theft measure – disable the radio if the power is cut until a special security code is entered. Many people aren’t aware of what their security code is or how to enter it, which can mean a trip to the garage to resolve the situation. This tutorial will teach you how to change your battery without the power being cut to your vehicle.

Tools you’ll require:

  • Small socket set – usually 8, 10, 12 and 13mm will be enough
  • A booster/jump pack OR a set of jump leads and any 12 Volt battery

Step 1 – Find your battery

Open your bonnet and locate the battery. In many cases the battery may be in a plastic box or padded canvas cover.

Note that in some rare cases the battery may be in the boot or under a seat inside the car.

Step 2 – Set up your secondary power source

If using a booster/jump pack; Find a stable location in the engine bay in which to site the jump pack where the leads can easily reach the battery terminals. Now clamp the crocodile clips of the booster pack over the leads that connect to the battery. Do not let the two crocodile clips touch each other! Ensure that you connect black to black and red to red. Also ensure that you have secured the crocodile clips to a metallic part of the leads that will not obstruct you whilst taking the leads off of the current battery. If your booster pack has a power switch ensure that it is switched on.

If using a 12 volt battery and a set of jump leads; Place your 12 volt auxiliary battery on the floor next to the vehicle and connect the jump leads to the auxiliary battery. Connect the red lead to the positive terminal and the black lead to the negative terminal. Do not let the crocodile clips at the opposite end of the cable touch each other! Now clamp the crocodile clips at the other end of the jump leads over the leads that connect to the battery. Ensure that you connect black to black and red to red. Also ensure that you have secured the crocodile clips to a metallic part of the leads that will not obstruct you whilst taking the leads off of the current battery.

Step 3 – Remove clamp holding your battery in place

Look at your current battery to find out how it is being physically held in place. In many cases there will be a clamp at the base of the battery holding it to the floorpan. In other cases there may be a clamp across the top of the battery holding it in place. Once you have worked out how the battery is being held in place, use your socket set to loosen the bolt(s) on the clamp and remove the clamp.

Step 4 – Remove your old battery

Now that your battery is no longer physically held in place we need to remove the leads from the battery and remove the battery. Locate the bolts on the battery leads that are holding the clamps onto the battery terminals. Using your socket set, loosen the bolts but do not remove them. Now, here comes the important bit. One at a time, starting with the negative lead, remove the leads from your current battery whilst ensuring that the crocodile clips from your auxiliary power source remain connected. Once the leads are free from the battery, remove the old battery from the vehicle. Your auxiliary power source is now supplying the power to your car until we connect the new battery.

Step 5 – Connect your new battery

Without knocking the leads currently being supplied by the auxiliary power source, lower your new battery into place. Now connect the leads onto the new battery – ensuring that you first connect the red to the positive terminal and then the black to the negative terminal. Be careful that you don’t knock the crocodile clips off the leads as you manoeuvre them onto the new battery. Now tighen the bolts on the clamps to hold them firmly in place. You can now safely remove your auxiliary power source by disconnecting the crocodile clips.

Step 6 – Clamp your new battery in place

Put the clamp back in place and tighten the bolt(s) that hold it in place.

Step 7 – Test

Fire up the car to ensure that the new battery has been successfully fitted. Now try the radio. If you have follwed this guide correctly, the power to your radio will not have been cut and your radio will not require programming with the radio code.

We hope that you were able to follow this tutorial without any problems. Please send us feedback whether positive or negative by contacting us.