The Bosch 1600A00J0E 2.5Ah BLUE Wireless Li-ion Battery 10.8V is compatible with professional Bosch 10.8V Li-ion professional cordless tools. Bosch’s innovative “Wireless Charging” technology enables you to work without interruption. This Bosch wireless battery is lightweight and practical. Couple the battery with the Bosch wireless charger and you will see real benefits. You will be able to work continuously with a single battery. Wireless charging technology means you can charge your Bosch wireless Li-Ion battery without ever having to remove it from the tool. The technology uses contactless energy transfer by means of induction. An induction coil in the wireless charger generates a magnetic alternating field. The battery contains another coil, which induces a voltage and generates a charging current. Simply place the tool onto the wireless charger and Bosch technology will do the rest. The Bosch 1600A00J0E 2.5Ah BLUE wireless charging battery is fully compatible with the GAL 1830W charger.