1CONVENIENT: This battery adapter conveniently converts 18V battery to fit for Einhell power tools. No more need to buy extra batteries to use different brands of tools. 2STABILITY AND SAFETY: Stable design ensures a firm battery connection to avoid disconnection or loosening. Passed the safety certification to ensure that there will be no battery short circuit, etc. 3FLEXIBLE USE: Using the 18V battery to for Einhell power tool converter, users can be more flexible in choosing the right tool for use without being limited to a single brand. 4ENVIRONMENTALLY FRIENDLY: Using a battery adapter converter can reduce battery waste and disposal, improve battery life and recycling rate, energy saving and environmentally friendly. 5PREMIUM MATERIAL: The power tool battery adapter is made of ABS material, which has high strength and durability to withstand long time use and transportation. 1 xBatteryAdapter