The Hilti B 22/8.0 22-Volt 3.0 Ah Li-Ion advanced compact high performance battery is comparable in application performance to an industrial-class battery. This adds up to superior tool usability and reduced user fatigue in a broad range of applications. The B22/8.0 can be used with every 22-Volt Hilti cordless tool. Great for working in tight spaces where compact dimensions and low weight are high priorities.