... 2 pcsSolar power: 6V, 450 mA, 1.35W*2 Includes a 2200mAh lithium battery pack output voltage( ... with each soalr travelling backpack is a Li Ion battery pack which stores any surplus power generated, ... AC/DC Charge 2-2.5 hoursBattery Typelithium battery boxProtectionShort, Over Charge, Over Discharge, Over Current ... Charging TimesItemHours Direct Sunlight * Cell Phone1.5-3 hours Digital Camera(below 5.8 V)2 ...