How to Install an Auxiliary Car Battery?

1 Answers
VanJasper
07/29/25 3:24pm
Installing an auxiliary car battery involves electrical circuits and requires a highly professional institution to perform the installation. Otherwise, it may increase the risk of vehicle self-ignition, and it cannot be done by oneself. Daily vehicle usage should avoid incorrect habits to prolong the battery's lifespan. Many off-road vehicles install auxiliary batteries due to the high number of electrical devices they carry. The battery is a crucial component of a car and also a wear part, with most batteries having a lifespan of 3 to 4 years. Many car batteries lose charge after some time, which is often caused by incorrect usage habits of the owner. When the engine is not running, the battery powers the electronic devices inside the car and is also responsible for starting the engine.
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