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- A high 6000mAh capacity delivers extended runtimes in your flashlight
- 10A stable output current for reliable power flow in daily use
- Multiple protection circuits safeguard you and your battery
- Li-ion chemistry supports 500+ charge cycles for peak power in the long term
- Size: 21700
- Voltage: 3.6
- Rechargeable: Yes
- Chemistry: Li-Ion
- Capacity (mAh): 6000
- Terminal Type: Button Top
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Description
Fenix ARB-L21-6000
High Capacity 21700 Battery
If you're looking for a 21700 battery with a high runtime, the Fenix ARB-L21-6000 is your best bet! This lithium-ion battery has 500+ charge cycles, which makes it a perfect choice in powering devices for the long haul. It has an astounding 6000mAh capacity, which is triple times the standard for li-ion 21700 batteries. This way, when you pair it with compatible flashlights, you have hours of brightness for all camping trips, nighttime walks, shifts at work, and more. Choose a 21700 battery that has your back by picking the Fenix ARB-L21-6000!
Protected Battery - Safety Features
No Fenix battery is complete without safety precautions, and this 21700 is no different. There are 3 sets of overheat protection built into this battery, including PTC cathodal block protection, separate microporous protection, and pressure relief valve protection. Also, protection circuits in the anode include overcharge, over-discharge, and short circuit protection. This way, all the bases are covered so you have premium-grade safety features to protect you, your battery, and devices.
- Notable Features
- » 10A output current for stable power in flashlights and other electronics
- » 4.2A maximum charging current to use again in no time
- » 6000mAh capacity delivers high runtimes in your favorite flashlight!
Item Details
| Brand | Fenix |
| SKU | FENIX-ARB-L21-6000 |
| Series | ARB |
| MPN | ARB-L21-6000 |
| UPC | 6942870311159 |
| Size | 21700 |
| Voltage | 3.6 |
| Battery Rechargeable | Yes |
| Capacity (mAh) | 6000 |
| Chemistry | Li-Ion |
| QTY Per Package | 1 |
| California Residents | see Prop 65 WARNINGS |
Specifications
| Size | 21700 |
| Voltage | 3.6 |
| Battery Rechargeable | Yes |
| Capacity (mAh) | 6000 |
| Terminal Type | Button Top |
| Protected | true |
| Integrated Charge Port | No |
| Max. Discharge Rate | 10 |
| Equivalent Types | 21-70, 2170, 21700 |
Unit Dimensions
| Length | 3.02 in (77 mm) |
| Diameter | 0.87 in (22 mm) |
| Weight | 2.82 oz (80 g) |
Certifications & Transport
| Certifications/Standards | ANSI, CE, FCC, UKCA |
| Country Of Origin | China |
| HTS Code | 85076000 |
Packaging/Shipping Dimensions
| Length | 5.69 in |
| Width | 3.07 in |
| Height | 1.15 in |
| Shipping Weight | 0.25 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













