1.1450mAh(Li-Po) built-in battery,double standby time. 2.High quality,light & convenience. 3.Strong & durable material. Detailed Product Description: 1.Portable Power Pack battery case 2.Creative design,power and fashion case in one 3.OEM acceptable,1 year warranty Help!!! My charger is at home and my battery is at 10%!!! Relax,help is here.We added the same Li Polymer battery that's in the ...