How Long Can a Car Battery Sit Without Losing Charge?

1 Answers
JulianaLee
07/25/25 2:06am
A car battery will typically lose its charge after being idle for about 30 days, with a daily discharge rate of 1%-3%. Here are some detailed insights about car batteries: 1. Precautions: Even a 60Ah battery will take over a month to fully discharge when the car is parked. Normal battery degradation, modifications, or additional installations can all affect the charge. If the car is left unused for more than a month, it is advisable to disconnect the negative terminal of the battery. 2. Charging Methods: If the car battery is dead and unable to start the vehicle, you can use jumper cables to connect it to another car's battery for a jump start. Alternatively, you can purchase an emergency jump starter or portable power bank online as a backup solution.
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