inputs.text: good bad - apple interchangeable batteries next iphone samsung epix separate charger like samsung blackjack uses battery epix improved battery power 2400 mah not 1200 samsung 1800mah batteries last 3 days iphone used time needs power samsung always charged battery available wish iphone fairness 3 days need follow review gave 3 main flaw power button not recesssed way using ipone keep button facing iphone otterman box rubber band keep moving usually not turn otterman provides space power button screen button raised surface tends turn testing surprised took 8 hours fully charge iphone turn twice 30 minutes also not show lost power charging iphone great iphone battery deep inside no way swap like samsung battery may work work well saw far button really bad design flaw might try gluing something around bit stick us post office rubber bands two usb ports power phone portable speaker time report sometime road actual battery life items not post would ask anyone owned item buys try post feelings power button maybe solutions overall time charging iphone long product lasted trash thanks advance update 082410 used second time last night iphone hit 4 power around 730pm plugged used iphone hour shut iphoneoff thought would completely charge iphone 100 overnight would still power left surprised 730am iphone 58 trent battery dead recharging continue testing still happy purchase little surprised turn not impressed first use