


Nitecore NL2140R 21700 4000mAh 3.6V Protected Lithium Ion (Li-ion) Button Top Battery with Built-In USB-C Charging Port
- Size: 21700
- Voltage: 3.6
- Rechargeable: Yes
- Chemistry: Li-Ion
- Capacity (mAh): 4000
- Terminal Type: Button Top
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Description
Nitecore NL2140R 21700 Protected Li-ion Button Top Battery
Built-in USB-C Charging Port, 3.6V 4000mAh 5A
The new Nitecore NL2140R is a high drain 21700 battery designed for high performance flashlights and electronic devices. The high 4000mAh capacity ensures long run times and powerful outputs. This battery has the unique benefit of having a built-in USB-C charging port so you can easily recharge it without needing to buy an external charger. Whether you choose to charge back up with a USB-C cable or Li-ion smart charger, this battery can be recharged 500 times. By reusing drained cells you save money and help the environment! The safe 3 year shelf life makes it perfect for storing as a back-up for when you need it most.
Features:
- High drain 21700 li-ion battery
- Built-in USB-C charge port for easy charging without external charger
- 3.6 volts of reliable lithium power
- High 4000mAh capacity for superior runtimes
- Found in the newest Nitecore flashlights
- Stable 3 year shelf life
- Capable of being recharged 500 times
- Multiple safety protections from over-charging and over-discharging
- Nitecore 1 Year Warranty
Technical Specifications:
Dimensions:
- Height: 2.96" (75.2mm)
- Diameter: 0.85" (21.6mm)
- Weight: 3oz. (85g)
Note: This package does not include a USB-C charging cable.
Item Details
| Brand | Nitecore |
| SKU | NITECORE-NL2140R |
| Series | NL |
| MPN | NL2140R |
| UPC | 6952506493500 |
| Size | 21700 |
| Voltage | 3.6 |
| Battery Rechargeable | Yes |
| Capacity (mAh) | 4000 |
| Chemistry | Li-Ion |
| Shelf Life | 3 Years |
| Packaging | Retail Packaging |
| QTY Per Package | 1 |
| California Residents | see Prop 65 WARNINGS |
Specifications
| Size | 21700 |
| Voltage | 3.6 |
| Battery Rechargeable | Yes |
| Capacity (mAh) | 4000 |
| Terminal Type | Button Top |
| Protected | true |
| Integrated Charge Port | Yes |
| Max. Discharge Rate | 5 |
Unit Dimensions
| Weight | 3.04 oz (86 g) |
Packaging/Shipping Dimensions
| Length | 5.49 in |
| Width | 3.07 in |
| Height | 1.12 in |
| Shipping Weight | 0.19 lb |
Additional Details
| Packaging | Retail Packaging |
| Warranty |
Nitecore 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






