Feature: 1. Scope of Application: The battery adapter is compatible with most styles of 18V to 20V battery models, suitable for woodworking and power tool adapters. 2. Premium Material: This battery adapter is made of premium ABS material, which is sturdy, has stable performance and long service life. 3. Multiple Protection Functions: It has short circuit protection, over current protection, under voltage protection, low power consumption, multiple protection functions, and is safe to use. 4. Perfect Fit: It fits the hole of the original machine, the shape and size are precisely designed, and the hand feel is still comfortable, so you can use it with confidence. 5. Easy to Use: The battery converter is portable and convenient to carry and easy to use, it is a perfect battery conversion device. Specification: Item Type: Battery Adapter Material: ABS Gross Weight: 115g / 4.1oz Product Size: Approx.11 x 7 x 4.5cm / 4.3 x 2.8 x 1.8in Suitable: Compatible with most styles of 18V to 20V battery models, suitable for woodworking and power tool adapters. Package List: 1 x Battery Adapter