Battery Tender Ring Terminal Harness Accessory Cable, 2 Foot Cord Adap The Battery Tender Ring Terminal Harness Accessory Cable is the perfect way to keep your battery charged and ready to go. The ring terminals can be left connected to the battery for an easy connection when you need to charge again, and the quick disconnect feature makes it easy to remove the cable when you're done. The cable is also compatible with 12 Volt model Battery Tender Battery Chargers, making it ideal for batteries that are difficult to access.