... iPad,iPhone,GPS,mobilephones... USB Charger use for differnt digital devices:portable, rechargeable,high capacity , use for iPad,iPhone,GPS, ... rechargeable high capacity backup battery for iPad,iPhone,mobils,digital devices 5200mAh Backup Battery Model NO.: RFBB1 Charge for many ... when you plug the connector of the adapter into DC input jack4) All LEDs are on when the charge is ...