NeoJDX Midie-6600mah Power Bank Portable Battery Charge w/ Dual Port for iPhone, Smartphones & USB-charged devices-Black Compatible with all Apple and Android smartphones, tablets and other 5V input USB-charged devices Powervault Midie comes fully charged. 4 LED lights show battery level Comes included with adapters for 90% of major devices (micro USB, Apple 30pin e.t.c) The Midie comes with 12 months full replacement warranty. Send it back to the dealer and get a replacement if it ever has a fault. Closed to 0 self-discharging when step into deep dormancy