General description The Einhell 18V 2.5 Ah and 4.0 Ah Power X-Change Batteries are part of the multifunctional and interchangeable Power X-Change rechargeable battery system. These batteries provide universal power and endurance for all cordless tools in the garden and workshop product family, offering significant cost savings and environmental benefits by eliminating the need for multiple batteries and chargers. Technical specifications Voltage: 18V Capacity: 2.5 Ah and 4.0 Ah LED charge level indicator: 3-step display Other information Resistant to dust, corrosion, and mechanical influences Active battery management system with microprocessor for monitoring battery parameters Trough handle for easy removal from tools