1Voltage Overcurrent Protection: This adapter is installed with silicone wire and increased fuse voltage overcurrent protection with a maximum allowable current of 30A. 2Fast Matching: Waterproof fuse holder rubber cover fits snugly over the internal blades fuse. Heat resistant wire matches quickly and the connection terminals are perfect for high power hardware use. 3Easy Installation: There are six fixing screw holes on the adapter, you can fix it anywhere on the DIY product, you can easily install and lock. 4No Fall Off: Simply move the battery into the adapter notch to hold the battery in place without falling off. If you want to remove the adapter from the battery, press the buckle on the battery and remove it. 5Great Compatibility: ABS plastic, safe and durable, corrosion resistance, suitable for indoor and outdoor use. Compatible for Ridgid and for AEG 18V lithium ion batteries. Package List 1 x Battery Adapter2 x Fuse