Tired of running out of battery life when you need it the most When you cant get to an outlet, our Innocell 3200mAh Extended Life Batteries will keep your HTC ThunderBolt moving forward. Our Extended Life batteries utilize premium Japanese cells to ensure the highest levels of safety and performance while offering you nearly twice the capacity of your stock battery. All battery life claims are dependent upon usage patterns, network configuration and many other factors; actual results will vary.