The battery is reactivated after being left for two years. How to activate the battery after starving to death

First check whether the battery is short of water. If it is short of water, add a proper amount of distilled water, and then use the charger to charge it. If the battery voltage is lower than 10V, the battery cannot be charged, which is called starvation. At this time, you can use the repair instrument to reactivate, use the repair instrument's high resistance repair to increase the battery voltage to more than 10V, so as to Charge it in.

The general car battery voltage is 12V, and the 12V voltage is not fixed. Under normal circumstances, the battery voltage before starting the car is between 11.8V-12.8V, and the battery voltage after starting is between 13.2-14.8V. If the battery voltage is lower than 11.8V, it indicates that the voltage is insufficient; if the voltage is lower than 10.8V, it indicates that the battery is running low and needs to be charged with a charger in time.

During the storage process of the car battery, about 1% of the electricity will be lost every day, which is the self-discharge rate of the car battery. If the battery is stored for too long, the battery will slowly lose power. If the battery is left idle for a longer period of time in a power-deficient state, the more serious the battery will be damaged, which will eventually lead to scrap.