Get more power for your Smart HD ATN optics with the ATN Extended Power Weapon Battery Kit. Provides 22 hours of use when you use these Night Vision Accessories from ATN. The ATN Extended Power Battery Pack Kit includes a pouch that mounts on the buttstock for convenient use and has extra room for shells. The pouch also has a rubber, water resistant seal for the cord access port to keep rain from getting to the battery. With 20,000 mAh, the ATN Extended Power Weapon Battery Pack can power your optics or charge other compatible devices for the whole day, then recharge while you sleep for more power on another day.