inputs.text: amazing product - battery backup exactly needed evo phone 3500 mah battery installed phone charged 26 less 2 hours even better still enough charge left keep power hungry evo usable 3 full days use without recharge minicam accepts 32gig mehemcard battery last long enough 2gig recording time 5500mah battery keeps camera recording hours instead minutes must recording kids school plays graduation necessity camping trip keep itehem earthquake ehemergency kit used sparingly see backup battery keeping touch week gave one gift friend avid camper impressed showing fellow campers without phone power second day kept power hog iphone 4 running full week strongly recommend anyone find thehemselves without ability connect powersupply mp3 player camera phone real world outings get several put one glove box first aid kit give tecksavy friends gifts winner gary h