PNY ST5100 PowerPack - Universal Portable Rechargeable Battery Charger STAY CHARGED-5100mAh provides up to 3 charges for your mobile device when you need it most! Soft touch finish for premium look and feel Dual Universal USB ports with 1 amp / 2.1 amp outputs Micro-USB cable included for charging devices and the PowerPack Safe & reliable, premium quality rechargeable Lithium Polymer battery Trusted Brand - Global Memory Leader for 30 Years 24/7 free technical support for all of your questions Backed by best in market 3 year warranty