1Professional Design: This power tool battery adapter conerts the for Bosch 18 battery to the battery for Einhell power tools. There is no need to purchase additional batteries. 2Stability and Safety: The power tool battery adapter is designed to be stable, which ensures that the battery is firmly connected to the tool and aoids power failure or loosening. Strict safety certification, so there will be no dangerous conditions such as battery short circuits when used. 3High Flexibility: The adapter allows users to use existing for Bosch 18 batteries in the for Einhell range of power tools, broadening the range of tool options and increasing flexibility. 4Enironmentally Sustainable: By using adapter conerters, battery waste and disposal are minimized, effectiely improing the serice life and recycling rate of batteries, saing energy and enironmental guard. 5Premium Materials: The adapter is made of premium ABS material, which has high strength and durability to ensure long term use and stable connection.