The battery-powered Einhell PXC-Twinpack 4.0 Ah consists of two universal 18 V Power X-Change batteries, which provide double the power for whatever job you use it for! The universal batteries of the Power X-Change series can be combined with all PXC tools, regardless of whether the product is a tool or part of the garden series. Made with lithium-ion technology, the cells offer improved performance and are immune to common battery diseases and deep discharge. Thanks to adaptive charging, battery life is significantly extended. Einhell's proactive battery monitoring system provides maximum safety, and battery parameters are continuously monitored by state-of-the-art components. The three-stage LED shows the charge level at any time. High impact protection and a secure grip thanks to the rubberised casing. Recessed, designed batteries are easy to insert and remove.