Naztech Extended Life Battery for HTC EVO - Battery - Retail Packaging - 2700mAh Made from the highest quality Japanese cells Comes with extended door Adds only 3-4mm to your device Keep your phone charged and ready to go, even with heavy phone and data usage 2700mAh of power Made from the highest quality Japanese cells Comes with extended door Adds only 3-4mm to your device Keep your phone charged and ready to go, even with heavy phone and data usage