
Nitecore WLB40 4000mAh 3.6V Li-ion Battery Pack for Nitecore Work Headlamps
- 4Ah capacity rivals industry-best 18650 batteries for high runtimes
- Long 500-recharge cycle life & high drain performance thanks to li-ion chemistry
- Directly rechargeable from vehicle ports, computers, and power banks via USB-C port
- Includes a push-button + LED display to check the current battery level
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Description
Nitecore WLB40
High-Capacity Rechargeable Battery Pack for Nitecore Work Headlamps
The Nitecore WLB40 is your highly reliable power source for Nitecore work headlamps like the NWH20 E-focus model. This rechargeable lithium-ion battery provides the power you need to get through long shifts and extended tasks, with a 4000mAh capacity that outpaces average li-ion cells. You can check the power level of this pack when uninstalled or used as a backup battery thanks to an integrated push-button and multi-stage LED power status system. When you need to recharge, just plug in anywhere by connecting a power bank or USB adapter cable to the WLB40's built-in USB-C port! For a battery pack you can depend on when it's time to get the job done, look no further than the Nitecore WLB40.
- Notable Features
- » 4000mAh high capacity and 3.6V standard voltage provide an overall energy rating equivalent to four CR123A cells
- » Highly portable at about 3" long with a weight of just 2.26oz - easy to carry plenty of spares to remote work areas or outdoor adventures!
- » NMC Li-Ion energy enables a broader operating temperature, longer lifespan, and stronger discharge capabilities than other rechargeable chemistries
- » 3-stage charging indicators make it easy to tell the remaining battery level to be charged at a glance
- » With hundreds of charge cycles and an ultra-high capacity, it's made to last the long haul
Item Details
| Brand | Nitecore |
| SKU | NITECORE-WLB40 |
| UPC | 6952506498840 |
| Length | 3.17 in (81 mm) |
Specifications
Power Details
Unit Dimensions
| Length | 3.17 in (81 mm) |
| Weight | 2.26 oz (64 g) |
Certifications & Transport
| Certifications/Standards | ANSI, CE |
| HTS Code | 850760 |
Packaging/Shipping Dimensions
| Length | 4 in |
| Width | 1 in |
| Height | 1 in |
| Shipping Weight | 0.12 lb |
Additional Details
| Packaging | Boxed |
| Warranty |
Nitecore 1 Year Warranty Battery Junction Warranty |
| Return Policy | Return Policy |
Bright Buys
- Trusted and reliable; consistently rated as a top customer pick for LED flashlights
- Superior 1,600mAh capacity means longer runtimes and less frequent battery changes
- Optimized for both high and low drain devices
- State-of-the-art automated production lines ensure the highest quality and safety protections
- 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
- 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
- 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
- Independent 4-slot charging for different batteries
- Touch screen control provides user-friendly operation
- 4 working modes for charging, testing batteries, and more
- Compatible with Li-ion, Ni-Cd, & NiMH batteries
- Quick Charge 3.0 technology enables fast and efficient device charging
- USB compatibility supports a wide range of electronic devices
- Compact adapter design makes it ideal for travel and everyday use
- Intelligent charging management helps optimize power delivery
- Universal cable to consolidate chargers for work, home, or EDC use
- USB-C, Micro-USB, and Lightning plugs for various electronics
- USB-C input with USB-A adapter for use with any USB power source
- 3.93ft long cord, allowing you to use your phone during recharging!
- Premium materials for durability and fast charge speeds
- Fits flashlights w/ diameter of 24-32mm & length of 130mm-170mm
- Great for EDCs, tactical lights, slim lights, & more!
- Durable and flexible nylon material keeps lights secure
- 33g weight won't drag you down!
- Portable powerhouse - emits a 1148ft beam from a 3.4in light!
- Strobe and SOS modes accessible for emergencies
- Dual-fuel power - swap in a CR123A when needed
- Strong magnetic tailcap for hands-free repair jobs
- USB-C port offers seamless recharging from anywhere!
- 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



