Compatible with Milwaukee M18 battery 18V series 48-11-1815 / 48-11-1820 / 48-11-1828 / 48-11-1840 / 48-11-1850 / 48-11-1860 and more. Our battery adapter connector is well-made, with a snug fit for your battery, allowing easy installation and secure locking. Made of durable ABS plastic, heat resistant and corrosion resistant, ideal for indoor and outdoor use. Enhanced security design includes a 30Amp fuse to protect battery equipment from damage due to excessive power. Waterproof fuse holder with rubber cap securely protects the blade fuse inside. High-quality silicone copper wire improves conductivity and safety. 12 AWG heat-resistant wire is suitable for high-power applications. Easy to use: simply insert the power adapter into the groove, push the converter, and ensure it is locked to the battery. To remove the adapter, press down the battery buckle and detach. The adapter features 3 fixing screw holes for secure mounting on walls, machines, or DIY projects. Widely used for power wheels, RC toys, work lights, robotics, and DIY applications. Equipped with 12-gauge wire, rated for a maximum current of 20A. Package includes 2 power wheel adapters with fuse holder, 6 pieces of 30Amp fuses, and 2 wiring terminals. (Note: battery not included) Important: This converter is not a charger; it only outputs voltage and power directly from your battery. Connect the red wire to the positive terminal and the black wire to the negative terminal. Ensure correct polarity when connecting to your device. When not in use for extended periods, remove the battery from the adapter.