Streamlight 18650 Protected Li-Ion Button Top Battery With Built-In USB-C Port Works in a Variety of Streamlight Flashlights The Streamlight 18650 Protected Li-Ion Button Top Battery offers 2600mAh of long-lasting reliable power. Specifically constructed with a built-in USB-C charging port for your charging convenience. This battery is designed to work with any Streamlight product that runs on, or takes, a rechargeable 18650 battery. Additionally, using a rechargeable battery is more environmentally friendly compared to disposable CR123A batteries. Buy your Li-Ion rechargeable battery here at Battery Junction. Features: Comes with Streamlight's Limited Warranty Built-In USB-C Charging Port Compatible with Streamlight AC/USB adapters or PC USB port Compatible with most other USB sources LED charge status indicators built into the top for monitoring charging process Estimated 5 hour charging time Works with Streamlight products that accept 18650 Suggested Streamlight Model use: PolyTac X, ProTac 2L-X, ProTac HL-X, ProTac HL5-X Protected by an on-board safety control circuitry Specifications: Battery Size: 18650 Battery Chemistry: Lithium Ion (Li-Ion) Nominal Voltage: 3.7V Nominal Capacity: 2600mAh Estimated Charge Cycles: 500 cycles Dimensions: Length - 2.75" (69.85 mm) Diameter - 0.744" (18.89 mm) Please Note: This item cannot be exported from the USA. Please do not place an order if you are located outside of the US. Exceptions can be made for APO/FPO and similar addresses with a US zip code.