The Einhell 18V 2.5 Ah Power X-Change is a member of the multifunctional & completely interchangeable Power X-Change rechargeable battery system from Einhell. The Power X-Change rechargeable batteries can be used universally for supplying power & endurance to cordless tools from the garden & workshop product family. The latest generation of lithium-ion cells deliver 100% more power for maximum power in every application combined with a design which is 17% more compact with 20% less weight. What is more, the PLUS technology stands for extra power for energy-intensive jobs. In addition, the high-quality rechargeable battery resists the memory effect & the self-discharging normally associated with batteries, to deliver constant high power.