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 others. This battery adapter connector is well-made with a snug fit, allowing easy installation and secure locking of the battery. Constructed from durable ABS plastic, it is heat resistant and corrosion resistant, suitable for both indoor and outdoor use. Enhanced security features include a 30A fuse that protects connected equipment from overcurrent damage. The waterproof fuse holder includes a rubber cap that securely covers the blade fuse. High-quality silicone-coated copper wire ensures excellent conductivity and safety. The 12 AWG heat-resistant wire is ideal for high-power applications. To install, simply insert the power adapter into the battery groove and push until securely locked. To remove, press down the battery release buckle and disconnect. The adapter includes three mounting screw holes for secure attachment to walls, machinery, or DIY projects. Designed for versatile use, this adapter comes with 12-gauge wire and supports a maximum continuous current of 20A, making it suitable for powering ride-on toys, RC vehicles, work lights, robotics, and other DIY projects. Package includes: 2 power adapter units with fuse holders, 6 pieces of 30A fuses, and 2 wiring terminals. Note: Battery not included. Important: This device is not a charger; it only delivers power directly from the battery. Connect the red wire to the positive terminal and the black wire to the negative terminal. Always verify correct polarity between the device and adapter before use. When not in use for extended periods, disconnect the battery from the adapter.