Hyperjuice Micro 3600mAh External Battery for iPhone, iPad, iPods, and Any USB Ready Device - Retail Packaging - Gold Extend iPad battery life by additional 5 hours Fully recharged the iPhone up to 3 times Recharge HyperJuice via high power 10W (5V, 2.1A max) USB Military grade lithium ion cells, rechargeable up to 1,000 times