... battery Output voltage: DC5.2 V 5000mAh mini solar mobile power charger for tablet pc Features: Large capacity, metal shell, ultra-thin ... mobile phone battery, MP3 / MP4 6 to 15 times, digital camera 4 to 8 times, outdoor camp lamp, head lamp, tents ... power supply capacity] 5000 / X [you electric battery capacity] = y [times]) enough for mobile phones, MP3, MP4, PDA, game (PSP), digital camera, ...