Although changing a car battery may seem like a simple procedure, there is considerable risk involved. A sudden loss of power could force a system to reset, erase memory, or activate a security process that needs a unique code.
This is due to the fact that some automakers disable the radio if the power is removed as an anti-theft safeguard until a unique security code is entered. Also, a lot of folks aren't familiar with their security code or how to enter it.
This step-by-step manual in car review magazine will teach you how to change a battery safely.
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Making sure you have all the required tools, such as safety goggles, a wrench, a pair of insulating rubber gloves, a backup battery of your choosing, wires, and jump leads, is the first stage in this process.
You can preserve the programming of the automobile and keep your settings by connecting a secondary power source. You can keep a car from totally entering default mode by maintaining a little electrical current throughout the system while changing the battery.
After stopping your car, take the ignition key out of the ignition. First, remove the nut from the negative terminal using an adjustable wrench. Pulling on the cable's end will disconnect it once the nut has been removed. For the positive terminal, follow the same procedure. The donor battery still powers the cables with enough energy to prevent the electronics from restarting.
If you still wish to use a memory-saving device, it can keep your car's electrical system charged while you remove the battery.
A simple 9V battery and some alligator clips that you may attach to your battery cables make up the majority of memory-saver gadgets. Others connect to various ports within your automobile, including the cigarette lighter.
An indicator light that indicates the memory-saving device is operational and ready for usage should turn on when you plug it in.
Turn the ignition switch to the "ACC" position if the light isn't coming on because it indicates no power is getting to the gadget.
When you've disposed of your old battery, be careful to inspect the area around it for corrosion or other damage. Check for corrosion and damage on the battery wires, battery tray, and hold-down clamps. We do advise using a wire brush to scrape away any rust or debris in these locations. It's also advised to apply an anti-corrosion solution to the battery terminals.
Lower your new battery into position without bumping the leads that are now receiving power from the auxiliary power supply. The leads should now be attached to the new battery, being sure to connect the red lead to the positive terminal before the black lead to the negative terminal.
Place the battery on the battery tray, keeping it upright at all times, and fasten it with the hold-down clamp or strap. To firmly secure the clamps, tighten the nuts on them. By unplugging the crocodile clips, you can now remove your auxiliary power source in a secure manner.