Can Batteries Be Overcharged. High Density and Flammable. The short answer is yes you can overcharge a car battery.
Lithium batteries have a high energy density so they can store a lot of energy in a small volume. Car Batteries will take whatever voltage is being sent to them regardless of if they are already fully charged. That is what this article exclusively evaluates.
The casing of the battery can become hot to the touch and begin to melt or swell.
Yes a car battery can be overcharged and it is a very common mistake that drivers and mechanics make. Whether or not lithium-ion batteries can be overcharged depends on their design and construction. It would cause heating up and burst. Whereas the battery indicator gauge on your dash console is a 48v meter so it shows full at 48 volts When charging those batteries will get into the mid 50v range.
