4,200mAh Lithium Ion Fuel Pack, Blue SL44 MED-SHM-SL44

4,200mAh Lithium Ion Fuel Pack, Blue Fuel pack + backup power for charging all portable electronics. 4200mAh lithium ion battery provides longer life and more charge cycles . Embedded cables- Micro USB for charging devices; USB for recharging unit . Also includes detached USB to Micro USB adaptor. Protection against over-current, overload, under-voltage and short-circuit . Ultra-compact scratch- case conveniently fits in your pocket. Dual USB ports charge 2 devices at the same time. 2A + 1A USB ports charge all USB devices, including smartphones, mp3 players and tablets. Power button and LED indicators shows charging and battery status. TSA checkpoint friendly- extra power during air travel SL44