ROMOSS Sense9 25000mAh Portable External Power Bank Battery Charger Pack Recharger Power Supply Station Triple-USB Port Fast Charging for iPhone iPad Samsung HTC Huawei Android Cell Phone and more Fast Charging and Efficient Output: fast self-charging IC technology saves half time to fuel up the power bank, energy conversion rate improved to 85% ensuring 11 full charges on iPhone 5s Triple USB and Charge while discharge: charge 3 mobile devices at the same time and can be charged and discharge simultaneously Compatible and Smart: automatically adjusts output based on the connected device, compatible with all popular smartphones and tablets Compact and Enduring: simple and elegant look with portable size, dormant when unused to avoid any power waste LED indication for battery status