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!