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- 18650 battery with Li-ion chemistry for intuitive recharging
- 500+ charge cycles offer long-term choice in powering electronics
- 4000mAh capacity retains power for long runtimes in flashlights
- Multiple protection circuits, mercury and lead-free design for safety
- Size: 18650
- Voltage: 3.6
- Rechargeable: Yes
- Chemistry: Li-Ion
- Capacity (mAh): 4000
- Terminal Type: Button Top
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Description
Fenix ARB-L18-4000
Li-ion 18650 Battery with 4000mAh Capacity
The Fenix ARB-L18-4000 is a rechargeable lithium-ion battery, great to use in compatible flashlights. The lithium-ion chemistry supports its capacity of 4000mAh, retaining plenty of power for long runtimes in your favorite flashlight from the Fenix TK11R to Fenix LD30R and more. It has 500 charge cycles, which is a long-term choice for powering compatible electronics such as select power banks and chargers. It has a 7A output current, giving it a stable performance overall.
Protected Battery
With an internal protection circuit, this battery features over-discharge, over-current, overcharge, and short-circuit protection. There are pressure relief vents that expel gas created by any short circuit, eliminating hazards that would potentially build. Overall, Fenix prioritizes safety in the everyday use of this 18650 battery to protect you and your electronic devices.
- Notable Features
- » Mercury and lead-free battery for further safety in daily use and an environmentally-friendly design
- » 3.6V and 7A output current creates stable performance overall
- » 500 charge cycles - this battery retains 70% of the capacity even after 500 charge cycles
- » Pressure relief valve expels gas created to prevent potential hazards
Item Details
| Brand | Fenix |
| SKU | FENIX-ARB-L18-4000 |
| Series | ARB |
| MPN | ARB-L18-4000 |
| UPC | 6942870311098 |
| Size | 18650 |
| Voltage | 3.6 |
| Battery Rechargeable | Yes |
| Capacity (mAh) | 4000 |
| Chemistry | Li-Ion |
| QTY Per Package | 1 |
| California Residents | see Prop 65 WARNINGS |
Specifications
| Size | 18650 |
| Voltage | 3.6 |
| Battery Rechargeable | Yes |
| Capacity (mAh) | 4000 |
| Terminal Type | Button Top |
| Protected | true |
| Integrated Charge Port | No |
| Equivalent Types | 168A, 18650, 19670, Protected 18650, Unprotected 18650 |
Unit Dimensions
| Length | 2.72 in (69 mm) |
| Diameter | 0.74 in (19 mm) |
| Weight | 1.94 oz (55 g) |
Certifications & Transport
| Certifications/Standards | ANSI, CE, FCC, UKCA |
| Country Of Origin | China |
| HTS Code | 85076000 |
Packaging/Shipping Dimensions
| Length | 5.72 in |
| Width | 3.12 in |
| Height | 1.18 in |
| Shipping Weight | 0.195 lb |
Additional Details
| Warranty |
Fenix 1 Year 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
















