Revive weak or dead batteries with ease. The RUGGED BY SCHUMACHER M10 Eyelet to Quick-Connect Cable is the perfect solution for anyone who wants easier, worry-free battery maintenance. Simply install the durable ring leads to your vehicle's battery posts and leave them in placeno need to remove them after every charge. When your battery needs charging or maintaining, just snap on your RUGGED BY SCHUMACHER battery charger + maintainer using the new weatherproof Schumacher Quick-Connect. With multiple sets of ring leads, you can use one charger + maintainer with multiple vehiclesjust install a set of ring leads on each ride and move your charger where you need it. These ring leads help keep all your batteries healthy and ready to go, so you can avoid costly dead batteries and roadside emergencies. The SA951 is compatible with RUGGED BY SCHUMACHER models SC1677, SC1678, SC1681, SC1682, SC1684.