The Hilti-2251347 Battery Pack B 22-55 is a high-performing battery made of lithium-ion technology designed to give power on demand and increase running-period for all your Hilti cordless tools Delivering up to 22V output and an industry leading 5. engan hour capacity, it means your tools will be had at peak performance when you need in most during the toughest of applications. This battery is compatible with fast charging and has been designed to be compact, light to carry. Designed for the demands of a worksite, including heat, freezing conditions and high impacts due to its 4 m drop resistant case as well is tough enough work you want it. This battery pack is nearly indestructible and keeps your tools ready to go.