Ipanda 2600 Mah Pocket Size Portable External Battery Charger Power Bank For: Apple Iphone 5, Samsung Galaxy S4, HTC One (M7) 2013, Blackberry Z10/q10, Nokia Lumia, Moto X, Google Nexus and All Other Smartphones (Green) Rechargeable 2600mAh Samsung lithium-Ion batteries USB output and Micro-USB input Power and convenience are packed into a surprisingly small size Overcharge, under discharge, over-current, overheating, and short circuit protection LED battery indicator will let you know when the flash charger is charged and discharged