Never be out of power again thanks to the Greenworks interchangeable battery system. With the ability to power the majority of Greenworks tools with one battery type, you can hold a lot of equipment with no tangled wires or reliance on dirty fuel. This charger is compatible with all 40v batteries able to provide a full charge in 60 minutes. You can easily keep track of the charge thanks to an LED display to indicate charging and complete states. You'll save on valuable storage space thanks to the units compact, wall-mountable design. It's easy to take a more sustainable approach to your garden work with Greenworks batteries and tools.