SureFire SF18350 Battery (18350 type)

SureFire SF18350 Rechargeable Battery – USB-Powered 18350 Lithium-Ion

Fast Charging. Long-lasting. Always Ready. 

The SureFire SF18350 rechargeable battery delivers dependable power with smart charging built right in. This high-performance 18350 lithium-ion battery is optimized for SureFire Dual Fuel, single 123A-powered products. Whether you're powering a flashlight or tactical light, the SF18350 provides consistent energy and eliminates the hassle of external charging cradles.

Thanks to its built-in MICRO-USB charging port, you can recharge it from nearly any power source—wall outlet, computer, portable power bank, or vehicle USB port. A red/green LED indicator keeps you informed at a glance: red means charging, green means fully charged. With a 3-hour charge time via USB and 1,100 mAh capacity, this battery gets you back in action fast and keeps you going longer.

Built for Demanding Gear and Environments

Designed for high-drain devices, the SF18350 offers a powerful 8–10A discharge rate and 3.7V output. It's ideal for users who need reliable performance from their illumination tools in both everyday and extreme conditions. The battery meets UN38.3 safety standards and performs in temperatures from -10ºC to 65ºC.

Its lithium-ion chemistry, compact size (39.8 ± 0.3 mm x 18.6 ± 0.3 mm), and lightweight build (0.95 oz) make it a practical choice for field use. With a charge end voltage of 4.2V, discharge end voltage of 2.5V, and energy output of 4.07Wh, it balances performance and efficiency. The battery stores best at 23±5ºC and supports USB charging at 500mA or up to 1A through an external charger.

Key Features

• Protected 18350 lithium-ion rechargeable battery

• 3.7V / 1,100 mAh capacity for extended use

• Built-in MICRO-USB port – no cradle needed

• Dual-color LED indicators: Red = Charging, Green = Charged

• 8–10A discharge rate for high-drain devices

• Charge time (USB): ~3 hours

• Operating temp (charge): 0–45ºC | Discharge: -10–65ºC

• Meets UN38.3 safety certification

• Dimensions: 39.8 x 18.6 mm | Weight: 0.95 oz (27 g)

• MPN: SF18350 | UPC: 084871330039

Stop wasting time with slow, outdated batteries. Choose the SureFire SF18350 for quick charging, strong output, and reliable performance—wherever power is needed. Add it to your gear today.

MPN: SF18350

UPC: 084871330039 

Please be sure this is the correct battery for your device, as batteries cannot be returned. View our full terms page here