How to change car battery without data loss?

If you want to keep all your data when you leave replace car battery The principle is simple: your car must always remain on. If you don't, you will have to reprogram all of your car's electronics. This article guides you through all the steps to replace your car battery without losing data.

The principle is quite simple: to provide power to various electronic devices when disposing of a used battery, it is recommended to use a 9V battery. Indeed, this battery will take over the power and thus save your data.

Step 1. Turn off the machine.

First of all, be sure to turn off the car and all electronic devices, otherwise the 9V battery may discharge very quickly.

Step 2: Connect the 9-volt battery

Before disconnecting the used battery, a 9V battery must be connected to the battery terminals. Be careful not to confuse electrical charges: you must connect + batteries to + battery, and - to -. You can use tape or chatter to keep the wires in contact.

Step 3. Disconnect the used battery.

Once the 9V battery is in place, you can remove the old battery, making sure the wires are not touching each other. Battery life is approximately 45 minutes, after which it may be discharged.

Step 4. Connect a new battery.

You can now reconnect the new battery, keeping the wires from the 9V battery.

Step 5: disconnect the 9 volt battery

After the new battery is installed and connected, you can finally remove the 9V battery from the battery terminals.

And voila, you've just replaced your car battery without losing data or programming your electrical devices.

Good to know: There are also backup boxes, which are sold at auto dealerships for about ten euros, that plug directly into the cigarette lighter. This box allows you to power your equipment while you are changing the battery.