... -discharge protection; over-load protection; shortage protection Fit for: Apple iphone 3G,3GS,4,4S 1st Gen Ipad/2nd Gen Ipad I pod I ... standard USB ports, it will most likely compatible with this power bank! How to use?Display charge state: press the button, LED ... devices to the OUTPUT1, or OUTPUT2, press the button, the power bank is charging. 5000mAh Portable battery power bank for iphone 4 & 4S