Rayovac Power Bank - 30-Pin Apple Plug (iPhone 4s & Below) - Includes 1 x 123A Lithium
Apple iPhone 4S Battery Replacement Kit with Tools, Video Instructions, Extended Life Battery and Full One Year Warranty - Walmart.com
Portable Emergency AA Battery Charger Extender suitable for the Apple iPhone 4S - with Gomadic Brand TipExchange Technology - Walmart.com
Amazon.com: MFI-Apple Certified - ibattz Mojo Vogue Removable Battery Case for iPhone 4 and 4S White 1700mAhX2 fits all version of iPhone 4S/4 : Cell Phones & Accessories
Apple iPhone 4S Battery
APPLE Original iPhone 4s Battery 1432 mAh Replacement Internal Battery New | eBay
Apple iPhone 4S Rejuva PowerPack Sport - Rugged Emergency Device Battery (Polycarbonate Battery) – BoxWave
Battery for Apple iPhone 4s 616-0579 616-0580 616-0581 616-0582 32GB 16GB NEW