The Einhell PXC battery twin pack 4.0 Ah consists of two universal 18 V rechargeable batteries from the Power X-Change series and offers twice the power for all devices in the innovative system range. The lithium-ion cells offer more power with improved immunity to typical problems like self-discharge. The service life of these rechargeable batteries is extended significantly by adapting the charging cycles to the specific application situation. The proactive battery management system from Einhell maximizes the safety of the system, and in addition all the parameters of the battery are continuously monitored with state-of-the-art components. The charge status of the battery can be checked at a glance with a three-level LED system that provides a constant overview of how much power is left. The rubberized housing ensures a high level of protection against bumps and knocks and makes the batteries easy to grip. The molded, recessed grips make it incredibly easy to insert and remove the batteries.