Genuine Apple iPhone 4S Li-ion Replacement Battery 3.7V 1430mAh & Tools Kit for iPhone 4S 8GB 16GB 32GB 64GB / Model 616-0580, 616-0579, 616-0581 by Buy4Less Outlet®
This will replace your old exhausted  iPhone 4S - Battery. Battery Life like in the first day. Buy4Less OutletTM  Model A1387