This is a high-performance 2400 mAh replacement flashlight battery for the Streamlight SL-20XP-LED, guaranteed to meet or exceed the OEM specifications of your original. The flashlight battery is 8.65 x 0.91 x 0.91 inches. Manufactured by Empire Scientific, model number FLB-NCD-6. We offer a 1 Year Warranty with purchase. See this product elsewhere at a lower price? Call or email us; we have a Price Match Guarantee.