HTC Hero G3 Batteries Our selection of Cell Phone Accessories includes; HTC Hero G3 batteries and replacement batteries. Browse through our inventory of aftermarket and factory original HTC Hero G3 Batteries. You can get a standard capacity or Extended HTC Hero G3 battery. These batteries are designed for precision compatibility and are the perfect spare or replacement for your existing HTC Hero G3 battery. With an extra HTC Hero G3 replacement battery, you will keep your HTC Hero G3 powered.