Portable solar charger with 3000mAh Li-ion battery inside Can be charged for mobile phones, digital cameras, PDAs, Mp3/Mp4 players The intelligent charging function: pre-charging, fast constant-current charging, constant-voltage charging, and equalization Charging effectively lengthen the service life of the battery The temperature compensation function, thermal regulation and thermal shutdown function A constant voltage is maintained by PWM(Pulse-Width Modulation) The powerful intelligent protection function: functions protecting the battery from over-charge, over-discharge, over-load, reversal connection and short-circuiting, the internal battery automatic restoration function, and the thundering protection Strong human design has a unload automatic shutdown and will alarm when the battery are consumed soon. The situation with solar charging can be indicated by week light and strong light. Its obvious to identify whether be fully charged by these two light Three-phrase outputs fit different digital products LED displays the battery storage Charging adapter for Nokia, Motorola, Samsung and SonyEricsson included The power of the solar battery: 1.98W Input voltage / current : 5V/1000mA Output voltage: 5.5V / 8.4V / 12V Output current: 1000mA / 1300mA / 800MA Full charging time (AC adapter): 2 - 3 hours Working hours (when built-in rechargeable battery full charged): 3 - 5 hours Gift box Packaging 4cm Packing:50pcs/Ctn,17.5kg/Ctn Carton Size:14.4x88x2.