Charger Key Fob

A charger key fob is a small electronic device used for keyless entry and remote start systems in vehicles. Like other key fobs, it relies on a battery, typically a coin-shaped lithium battery such as CR2032 or CR2025, to function. These key fob batteries provide the power needed to transmit signals to your car, enabling functions like locking or unlocking doors, opening the trunk, or starting the engine remotely.