Urgent Power DX 5200 mAh battery provides up to 20 hours of additional talk time for iPhones and Smartphones and 200%-300% to the battery life of most mobile phones. It will add up to 5 hours of additional power for most tablets. A USB charging cable apple 30-pin connector Micro USB & Mini-USB connectors are included making it compatible with most smart phones e-Readers Tablets iPads and iPods. The UrgentPower DX can be charged via any powered USB port so you can always have it ready when you need it. Conveniently sized to carry in a case or your pocket the UrgentPower is easy to take with you! 4 LED battery level indicators Convenient Built-in LED flashlight Auto sensing on/off feature saves battery charge Over Voltage/Under Voltage Protection.