The quality and affordable Uni-Charger has the ability to charge AAA, AA, C and D batteries using the most efficient solar cells. The stand on the bottom of the Uni-Charger allows you to easily position the panel to face the sun directly while its strong enclosure provides a weather-proof panel that has easy access to the batteries inside. Instructions included with the Uni-Charger let you know precisely how long you need charge each type of battery.. Excellent for charging batteries for CD players, MP3 players, palm pilots and more! Approximate Charging Times - QTY 2 AAA Batteries= 1-2 hours - QTY 2 AA Batteries= 3-4 hours - QTY 2 C Batteries= 6-8 hours - QTY 2 D Batteries= 9-12 hours Features - Instructions included - Mono-Crystalline Solar Cells - Charges two AAA, AA, C or D batteries at a time - Compact and lightweight for convenient portability