inputs.text: lot juice small package - ive tested several different external usb battery packs various mobile devices disappointed one way another bigheavy ports flakey didnt provide enough juice required bulky wall charger etc stumbled across new trent imp70d discovered fits needs imp70d packs lot juice 7000 mah surprisingly slim package device fairly close dimension iphone 44s except wider doesnt feel like im carrying around brick slip bag unlike similar 8000mah battery pack isound provides two usb ports charging one 1a port iphones lowerpower devices 2a ipads larger devices require power ive happy amount power unit provides simultaneously charge iphone ipad without hiccuping even better imp70d doesnt require separate wall wart charge internal battery charges miniusb works perfectly stock iphoneipad chargers presumably mobile device wall chargers accept usb means dont need lug around multiple chargers important consideration ive seen people complain led lights unit hit power button leds light show devices current battery level switch seconds personally prefer way battery packs ive tried leave leds whenever device powered theyre often bright theyre distracting think leds new trent could stand larger andor distinct though four tiny leds blue glowing strip difficult tell glance many lit overall im extremely pleased imp70d took searching finally found external battery pack exactly need small light enough carry around easily highly recommended anyone interested traveling light possible