Product Feature Well Made: Made of durable ABS plastic, which is thicker and less prone to damage. The waterproof fuse holder rubber cover fits on tightly to protect the blade fuse inside, ideal for indoor and outdoor use. Perfectly Compatible: Compatible with Ryobi BPL-1815, BPL-1820G, BPL18151, BPL1820, P100 P102 P103 P104 P105 P107 P108 P109 Li-ion & Ni-CD Battery . Safety Design: Added fuse voltage overcurrent protection, Equipped with 30A fuse , Heat-resistant 14 AWG safe and reliable for high power applications. The switch design is safe and convenient to cut off the power, without worrying about over-discharge of the battery. Easy to Install: Easy to install, locks on your battery very well, no more worrying about wires coming loose from bumps. The red wire is connected to the positive battery terminal, and the black wire is connected to the negative battery terminal. Versatility: battery adapters perfectly upgrade your robot, RC toys, DIY, and other high-power applications.Product SpecificationType Battery AdapterColor GreenMaterial ABSVoltage 18VCable spec 14 AWGFuse Current 30AModel BPL-1815, BPL-1820G, BPL18151, BPL1820, P100 P102 P103 P104 P105 P107 P108 P109Features with Fuse,easy to install,overcurrent protectionCompatible with for Ryobi Li-ion & Ni-CD BatteryConnection The red wire is connected to the positive battery terminal, and the black wire is connected to the negative battery terminal.Application upgrade your robot, RC toys, DIY, and other high-power applicationsPackage Included 1x Battery Adapter with Fuse