The Ryobi 18V in car charger plugs straight into a vehicle\'s 12V DC outlet, giving you the flexibility to charge batteries while driving or when access to power is limited. This charger is compatible with all One + 18V lithium+ batteries, and an indicator light gives you the status of the current charge. Completing this charger is a robust design and intelligent condition monitoring, which evaluates the batteries voltage and temperature to ensure longer battery life. With the Ryobi One Plus system one battery and charger can be used with a comprehensive range of power and garden tools which allows you to build a wide range of tools which are compatible with one battery. This stops unnecessary batteries and chargers being brought every time you purchase a one plus tool and saves you money - One battery powers them all!