APPLE IPhone 3G Batteries Our selection of Cell Phone Accessories includes; APPLE IPhone 3G batteries and replacement batteries. Browse through our inventory of aftermarket and factory original APPLE IPhone 3G Batteries. You can get a standard capacity or Extended APPLE IPhone 3G battery. These batteries are designed for precision compatibility and are the perfect spare or replacement for your existing APPLE IPhone 3G battery. With an extra APPLE IPhone 3G replacement battery, you will keep your APPLE IPhone 3G powered.