The Streamlight 77375 Battery Stick is a high capacity NiMH battery designed for use with the Streamlight SL20XP and UltraStinger flashlights. With up to 1,000 charge cycles, this battery stick provides longlisting performance and is an excellent choice for those who rely on their flashlights for work or outdoor activities. The battery stick is rechargeable in 10 hours or less using Streamlight's AC or DC charging cords, making it easy to keep your flashlight powered up and ready to go. The battery stick is built to last, with a shock absorbing bumper and a rubberized grip that provides a secure hold even in wet or slippery conditions. It is also backed by Streamlight's limited lifetime warranty, so you can trust that it will perform reliably for years to come. Whether you're a law enforcement officer, a first responder, or an outdoor enthusiast, the Streamlight 77375 Battery Stick is an essential accessory for your SL20XP or UltraStinger flashlight.