inputs.text: absolute best choice backup battery - anyone market external battery absolutely put new trent imp1000 top list looking external battery ever since lost richard solo smart batterythe imp1000 packs whopping 11000 mah reference ipad 2 batterys capacity 6930 mah iphone 3gs 1219 mah iphone 4 1420 mah finally richard solo batterys capacity 1800 mah charge richard solo every night capability charge along phone time far think need charge weeki chance play around imp1000 couple days thoughtsprosvery high capacity charge ipad 2 15 times 3gs 9 times wowlightweightportableautomatically turns not useincludes plug convertersno heat issuesreliableconsonly 1 usb outletmust charge wall outlet no car charger no usb chargingcant charge charging another devicesurface prone fingerprints matte black finish pleaseblue power light bit bright suggest dot matrix ledsas mentioned 1 usb outlet however realize may design decision due quality safety reviews competitors product multiple usb outlets report leaking expanding overheating batteries definitely live 1 outletend verdict excellent product reasonable price perfect power user travelling offers great peace mind absolutely recommended