






SureFire SF18650B 18650 3500mAh 3.6V Protected Lithium Ion (Li-ion) Button Top Battery with Micro USB Charging Port
- Size: 18650
- Voltage: 3.6
- Rechargeable: Yes
- Chemistry: Li-Ion
- Capacity (mAh): 3500
- Terminal Type: Button Top
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Description
SureFire SF18650B Li-Ion Battery with USB Charge Port
3.6V 3,500mAh Protected Button Top
The SureFire SF18650B is a high drain 18650 battery with a built-in micro-USB charging port. The built-in charging port makes it easy to recharge this 18650 without the need for an external charger - all you need is a USB charging cable (which is included) and you're ready to go! This battery can easily power up your favorite SureFire products with its 3.6 volts of power and 3500mAh capacity. This battery has a two LED indicator display letting you know when the SureFire SF18650B is charged and ready to go once more. Strong discharge characteristics provide power flow up to 8-10A, supporting a wide range of high-powered flashlights.

- Notable Features
- » Integrated protection circuit for enhanced safety at all times, preventing over-charge, short circuits, and more
- » Lithium-ion battery chemistry supports hundreds of recharge cycles for an extended service life
- » Onboard USB port enables recharging from power banks, computers, and car port adapters on the go
- » Compatible with 18650-driven electronics, including the following SureFire lights & more models: FURY-DFT, FURY-IB-DF, M600F-BK, M600F-TN, P1R-A-BK, and P1R-B-BK
Item Details
| Brand | SureFire |
| SKU | SUREFIRE-SF18650B |
| MPN | SF18650B |
| UPC | 084871328050 |
| Size | 18650 |
| Voltage | 3.6 |
| Battery Rechargeable | Yes |
| Capacity (mAh) | 3500 |
| Chemistry | Li-Ion |
| Packaging | Retail Packaging |
| QTY Per Package | 1 |
| California Residents | see Prop 65 WARNINGS |
Specifications
| Size | 18650 |
| Voltage | 3.6 |
| Battery Rechargeable | Yes |
| Capacity (mAh) | 3500 |
| Terminal Type | Button Top |
| Protected | true |
| Integrated Charge Port | Yes |
| Max. Discharge Rate | 10 |
| Equivalent Types | 168A, 18650, 19670, Protected 18650, Unprotected 18650 |
Unit Dimensions
| Length | 2.73 in (69 mm) |
| Diameter | 0.73 in (19 mm) |
| Weight | 1.6 oz (45 g) |
Packaging/Shipping Dimensions
| Length | 2.74 in |
| Width | 0.72 in |
| Height | 0.72 in |
| Shipping Weight | 0.1 lb |
Additional Details
| Packaging | Retail Packaging |
| Warranty | Battery Junction Warranty |
| Return Policy | Return Policy |
Bright Buys
- Reliable lithium chemistry with a 10 year shelf life
- Regarded as one of the highest quality CR123A batteries on the market
- Used in LED flashlights, alarm systems, ranger finders and more
- Cells are lightweight, durable and ideal for long term storage
- Jacket style may vary
- Ideal for low-drain applications that require a primary battery to provide constant power
- 10-year shelf life - stock up for emergencies!
- The best choice for consistent power, great in low-drain devices like remotes
- Safe and reliable - capable of performing in high or low temperatures
- 11-in-1 card sized tool fits in your wallet or on a keychain!
- Packed with handy tools including a screwdriver & 7 wrench settings
- Serrated saw and straight-edge knife for quick cutting jobs
- Can + bottle openers for campsite meals or end-of-shift relaxation
- Four-channels saves time by charging multiple batteries at once.
- Capable of charging multiple chemistries by automatic battery detection.
- LCD display reveals the charging progress, battery type, voltage, and charging current.
- Automatic power-off function cuts off the current when charging is complete.
- Extremely compact and powerful EDC
- Max output of 3,000 lumens with a max throw of 229 meters
- Dual fuel and available with extender for use with a 26650
- Equipped with 4 x CREE XPG3 LEDs for maximum illumination
- 225mAh capacity drives long runtimes for watches and electronics
- CR2032 coin cells packed with 3V of power
- Convenient 6-piece retail card provides backup batteries
- Easily replaceable primary lithium cells
- Top recommended battery for Apple AirTags
- 3,000 lumens and a 250-meter throw - fierce illumination to light up your backyard
- Multiple output modes are accessible via easy side switch operation
- Strobe, SOS, and beacon modes offer distinct signaling capability
- High-capacity battery supports the light with a maximum 227-hour runtime
- Upgraded to output up to 3,100 lumens with a 1,000ft throw for optimal spotting!
- Offers fast, direct USB-C recharging from outlets, power banks, and more
- Ultra-slim design provides an easy-to-hold, simple EDC lighting solution
- OLED screen monitors performance, including charge level, brightness & beyond
- Pre-shrink wrapped Panasonic CR123A batteries great for OEM use & more
- 1550mAh high capacity keeps lights, alarms & more running longer
- Lithium cells with stable 3V output and strong discharge performance
- Storage life of up to 10 years ensures backups remain ready for use










