Keep your Streamlight TLR-7X and TLR-7X USB Lights juiced up and ready for action with the SL-B9 Battery Pack. Includes (2) Lithium-ion rechargeable batteries. Compatible with the StreamlightA(R) TLR-7X & TLR-7X USB Lithium-ion Batteries are rechargeable via USB-C Batteries are fully recharged in about 2.5 hours Rechargeable up to 300 cycles 850 mAh Order today!