SureFire SF18350 Micro-USB Rechargeable 3.7V 1,100mAh Battery

Description

The SureFire SF18350 is a protected 18350 lithium-ion rechargeable cell that does something most 18350s can't: it charges straight off a USB cable with no external cradle needed. There's a Micro-USB port built right into the battery, so you plug the included cable in, watch the LED go from red to green, and you're back in business. That little detail makes it a favorite for folks running SureFire Dual Fuel lights who want the runtime of a rechargeable without the hassle of pulling batteries out and dropping them in a separate charger.

Under the wrapper you get 3.7 volts and 1,100 mAh of capacity, paired with an 8 to 10 amp discharge rate. That combination is what lets it hold up in high-drain gear like LED weapon lights and flashlights, where a weaker cell would sag under load. The protected circuitry guards against overcharge, over-discharge, short circuit, and voltage swings, which is exactly what you want in a cell you're trusting to run a duty or defensive light.

What the SF18350 Powers

This one is built specifically for SureFire Dual Fuel, single 123A-powered tools like the EDC1-DFT. Run it in a Dual Fuel light and you get rechargeable convenience when you want it, plus the option to drop in a standard 123A cell in a pinch. It is not made for non-Dual Fuel single 123A products, so it's worth confirming your light is Dual Fuel before you order.

Charging the SF18350 On the Go

Charging is about as simple as it gets. The onboard port takes USB power at 500mA, or up to 1A through an external charger, with a typical charge running around three hours. Two LED indicators keep you posted: red while it's charging, green when it's topped off. At just 0.95 oz and measuring roughly 39.8mm by 18.6mm, it's easy to carry a spare or two for longer days in the field, and it carries UN38.3 certification for peace of mind.