What Our Gearhead(R) Experts Are Saying:"I always bring a spare LT Battery on big missions-it's small, lightweight, and swapping it out is quick. Having that extra charge gives me peace of mind when I know I'll be out all night, whether I'm trail running or on an alpine push."We rely on the BD LT Battery when our adventures stretch long past sunset. Specifically designed for the Distance LT 1100 headlamp, this rechargeable pack ensures we've always got the power to keep moving through the night. Its compact, lightweight build makes it easy to carry a spare in our running vest or pack, so we never have to cut a mission short. With 2200 mAh of capacity delivering 8. 14-watt hours of charge, the BD LT Battery offers reliable performance for everything from late-season summit bids to ultra-distance runs. Charging via USB keeps things simple, while its rugged construction stands up to repeated use in the field.