Outdoor Outfitters Powerpack Rechargeable Battery, 12V and 18a/h. These battery packs are nice and compact making them easy to store and carry.Specifications:- 12 Volt 18AH Sealed Battery- Includes spade adapters- Great for use on rifle mounted spotlights such as a Lightforce and Outdoor Outfitters Spotlights- Theoretically 100 min life with 100 watt bulb but up to 6 hours when used intermittently- Double battery time with 50 watt bulb- Dimensions (L x W x H): 18 x 7 x 17cm