The Einhell 18V 4.0 Ah Power X-Change battery is part of Einhell's multifunctional and infinitely combinable Power X-Change battery system. The universally applicable Power X-Change batteries provide power and endurance for all battery-operated devices in the garden and workshop product family. The benefits for the customer are clear: with one battery and one charger for all devices, significant cost savings are achieved not only during purchase, but the universal applicability also protects the environment and offers flexibility in home and garden. Additionally, there is no clutter or chaos with various batteries and chargers for each individual device. The 18V 4.0 Ah Power X-Change is a basic battery of the Power X-Change family and is also suitable for TWIN-PACK use in 36V applications. The process-controlled active battery management system (ABS) continuously monitors the battery parameters using the integrated microprocessor. This ensures maximum safety, optimal device performance, maximum runtime, and maximum lifespan. The current charge status can be checked via a 3-stage LED display. The housing is designed to resist dust, corrosion, and mechanical influences. The rubber coating provides high shock protection and a good grip. The grip recess allows for easy removal from all devices.