USB-A / 2.1A and USB-C / 2.1A: Battery Tender® Quick Disconnect USB charger adaptor with 12V input and maximum 2.1 Amp USB charging output. A portable solution for charging your USB-connected mobile device using your vehicle's 12V battery. Designed for use on most 12-volt batteries - motorcycles, golf carts, ATVs, and more. Simply plug this adaptor into the Battery Tender® Quick Disconnect Cable installed on your vehicle and charge your device with a USB charging cable. Great for charging your phone or GPS when you're out for a ride! Easy to Use - Easily charge your USB-A or C (based on selection) connected mobile devices with your 12V battery. Cconvenient Compatibility - Designed for use on most 12-volt batteries utilizing Battery Tender Ring Terminal Accessory Cable - motorcycles, golf carts, ATVs, and more.