inputs.text: pretty bright lips - disclosure contacted ec technology given sample product specifically purpose reviewing ittest devicesgoogle nexus 7htc onehtc evo 4g ltesamsung galaxy nexussamsung galaxy s2samsung galaxy s3samsung galaxy s4kindle fire hd 7\\ok im not expert lipstick battery pack bit bigger standard lipstick like eyeliner size guys size mini maglite solid device sure offering feel quality flashlight speaking flashlight single led built tip pretty bright dont light meter measure much light emits fairly impressive amount unit fully charged found would run flashlight 8hrs goafter draining charging several times found battery pack would take 4 hours charge totally empty using 2a ac adapter compared htc one close size battery roughly twice time charge looking closely difference htc ships 2a ac adapter one used testing would indicate phone absorb 2a charging lipstick battery hand limited 1a input half phone solves question takes long charge half input power double time takes chargethis charge rate becomes rather important comes unit charging devices devices listed come 2a ac adapter lipstick battery pack however maximum output 1a half output results twice time charge device device chance eat incoming power instead storing devices tested found barely made double digit increases charge one hour period device worth stating however though devices didnt get much charge hour another hour device able used well still pity lipstick battery doesnt 2a output though took starin summary think definitely worth asking price currently 15 dollars even though could wish higher output supposed backup battery small size convenient toting around respects well ill attaching one someones keychain though one could use little velvety bag comes hold adapter cablesdevices tested found barely made double digit increases charge one hour period device worth stating however though devices didnt get much charge hour another hour device able used well still pity lipstick battery doesnt 2a output though took starin summary think definitely worth asking price currently 15 dollars even though could wish higher output supposed backup battery small size convenient toting around respects well ill attaching one someones keychain though one could use little velvety bag comes hold adapter cables