The device is part of the Toolcraft interchangeable battery system TAWB-200. This allows one battery to power many different devices, providing a significant cost advantage. The Toolcraft 20V battery with 2.0 Ah is the perfect support for all 20V battery-powered electric tools in the Toolcraft TAWB-200 series. With this battery, DIY enthusiasts save money and space, as the powerful battery is compatible with all devices in the 20V class—eliminating the need to constantly switch between multiple batteries and different charging stations.