The Ray"N Go Battery cell is a AA battery charger and power distribution device that is designed to work with the 7402 Ray"N Go 2 Watt Solar Collector. Power may be generated from this, or any other solar collector or any 5V USB power supply such as a computer or other USB ready device. Charged AA batteries may be used to charge in other devices using AA batteries, or can be used to charge other small handheld devices right from the battery cell through the USB cable, Micro USB, Apple adapter tip, female USB adapter or the Wind"N Go/SolaDyne adapter. The Battery Cell also includes 1 LED flashlight and 3 LED battery meter.