inputs.text: external battery pack rocks - take unit anywhere run completely power no recharging options back business 10 min less ipad usable still charging 21a used unit revive purposely discharged ipad2 anything else unit simply bonus blackberry tour 9630 next charge battery watch program v18 11 indicated battery level 67 plugged 11a using supplied micro usb adapter 30 minutes start rechecked charge complete time ipad projected charge time unaffected adding blackberry reviewed usage indicator uses 3g 30 min wifi 1 hr etc blackberry 87 fully charged 10 min later one hour charging ipad 20 three leds two hours 40 charge unit still three leds switched wall charge tracking parameters rehemained ipad could not tell difference unit charges multiple devices large reservoir stored power follow month use unit hit used hurricane power outage take room not want stretch power cord device running low wife found situation stuck unexpectedly 6 hours not chargers us acd 66 kept two blackberrys ipad fully functional