Extend your mission capability or hunt by equipping your night vision, thermal device, binocs or spotting scope with this ATN Extended Life Battery Kit. Delivers up to 20+ hours of battery life due to high-capacity 20,000 mAh battery pack. Designed to be used with the ATN X-Sight 4K. 20,000 mAh battery pack USB to Micro SB adapter with L-shape connector Battery holder for rifle stock Order today!