Can You Damage A Car Battery By Overcharging. If you live in an extremely hot climate this can damage your car battery if your car is left out in the sun for too long. While a few variables may be involved with overcharging a car battery the results are simple to check.
If overcharging continues for days it will eventually kill the battery. Its worth noting however that continuously charging a battery to a full charge of 100 can degrade a battery over time and slightly reduce its effective lifespan. If you are referring to a car battery.
If the battery is low on liquid it could short out and explode.
A battery can quite simply die from being overcharged. Over-charging can make the plates swell and can cause internal shorts. A 12V lead-acid battery will not be damaged by overcharge if the voltage is kept low enough to avoid electrolysis and the charging current is kept below 02C 5 times less than the Ah capacity. The battery may stop functioning.
