Ultra-Slim Cell Phone Portable Charger Li-Polymer Battery Power Bank by Fast Track Energy - Model U35 10000 mAh CHECK OUT WHAT OUR CUSTOMERS ARE SAYING: - " this was perfect for travel...it takes up very little room, love the fact that it is so slim and portable, this is a wonderful product for a great price, fully charged my phone and tablet right out of package HIGH CAPACITY PORTABLE CHARGER  The model U35 10000mAh power bank can hold enough power to fully charge a typical smartphone 4- 7 times (depending on your phones battery size). It can hold a charge for long periods of time. HIGHEST QUALITY TESTING OF COMPONENTS GIVES YOU PROTECTION ASSURANCE -Protection Features Include: Intelligent Monitoring System With Over-Charge, Over-Discharge, Over-Current, Over-Voltage, Short-Circuit, Over-Load Safety Protection With Dual Output, Safely Charge Two Devices At Once. All Safety Certificates to ensure you have dependable power when you need it. 100% CUSTOMER SATISFACTION GUARANTEE: Our attention to details with regard to buying the best components and testing them completely before a customer receives their product makes it easy to back up with a satisfaction guarantee. If you dont like the product, return it. You will get a complete refund. FREE EXTENDED WARRANTY  Register your product with Fast Track Energy (details provided) and you will receive our maximum warranty coverage. If anything goes wrong with your power bank (physical damage to the unit is excluded), just return it and we will replace it.