- Stock: In Stock 1-3 days
- Brand: NITECORE
- CODE: TC-0010669
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Description
Battery Nitecore 18650 / 4000mAh NL1840R
Nitecore 18650 High-Capacity 4000mAh Rechargeable Lithium-Ion Battery with Built-in USB-C Charging Port
The Nitecore 18650 4000mAh USB-C rechargeable battery (Model: NL1840R / Product Code: 9060100941) represents the cutting edge of energy storage technology for demanding tactical and outdoor equipment. Designed by the world-renowned Nitecore, this lithium-ion (Li-ion) battery delivers an impressive and industry-leading 4000mAh capacity in the standard 18650 format, ensuring outstanding runtime and maximum operating duration for high-powered LED flashlights, night vision devices, and other tactical systems.
The key advantage of the NL1840R is its built-in USB-C charging port located directly on the battery body. This innovation eliminates the need to carry a separate bulky external charger in the field or during outdoor adventures. You can conveniently and quickly recharge it using a standard USB-C cable connected to a power bank, solar panel, vehicle charger, or computer. Additionally, the battery features a built-in charging status indicator (red while charging and green when fully charged), allowing you to instantly check its status at a glance.
Safety is engineered to the highest standards. Nitecore has equipped the NL1840R with an advanced protection circuit (PCM) on the cathode, providing comprehensive protection against overcharging, over-discharging, and short circuits. Furthermore, it incorporates an internal pressure relief valve for temperature-related pressure buildup and is externally protected by a durable hard-metal casing, offering excellent resistance against impacts and drops commonly encountered during demanding operational use.
Ideal Uses & Applications
- High-Power Tactical LED Flashlights: The massive 4000mAh capacity maximizes flashlight runtime during patrols and nighttime operations.
- Outdoor Activities (Camping, Hiking): USB-C charging capability from a power bank makes it ideal for multi-day outdoor adventures without access to the electrical grid.
- Tactical Field & Simulation Devices: Suitable for powering compatible electronic aids, communication systems, and optics that require stable voltage and extended runtime.
- Emergency Preparedness Equipment: A reliable power source for bug-out bags thanks to the low self-discharge rate of Nitecore battery cells.
Key Features & Advantages
- Industry-Leading 4000mAh Capacity: One of the highest capacities available in an 18650 battery for maximum runtime per charge cycle.
- Standalone USB-C Charging: Recharge directly without an external charger using a standard USB-C cable.
- Integrated Protection Circuit: Automatic protection against overcharging, deep discharge, and short circuits.
- Dual LED Status Indicator: Clear visual charging status indication (Red / Green) directly on the battery.
- Durable Construction: Internal and external safety systems designed to withstand high stress and impacts.
Technical Specifications & Details
| Manufacturer / Brand | NITECORE |
| Model | NL1840R |
| Product Code (SKU) | 9060100941 |
| Barcode (EAN) | 6952506497515 |
| Battery Type | Rechargeable Lithium-Ion (Li-ion 18650) |
| Rated Capacity | 4000 mAh |
| Nominal Voltage | 3.6V |
| Charging Port | Integrated USB-C Port (on the battery body) |
| Protection Circuit (PCM) | Yes (Protection against overcharge, over-discharge & short circuit) |
| LED Indicators | Yes (Red = Charging, Green = Fully Charged) |
Tactical Corner Tip: Proper Charging, Size Compatibility & Lithium Storage Guidelines
Attention to Length Compatibility (Protected + USB-C): The Nitecore NL1840R incorporates both a protection circuit and a USB-C charging port in its top section. Technical Tip: Due to these integrated systems, the battery's overall length is slightly longer than a standard unprotected 18650 battery. Ensure that your flashlight or device is compatible with "Button Top" batteries (with a protruding positive terminal) and features springs capable of accommodating this slight length difference.
Proper Long-Term Storage and Maintenance: Lithium-ion batteries require specific handling to preserve their capacity over time. Maintenance Guidelines: If you plan to store the battery for an extended period (more than one month) without use, do not leave it completely discharged or fully charged (100%). The ideal storage condition is approximately 40% to 60% charge in a cool, dry environment. This helps prevent premature aging of the battery chemistry and ensures that the battery can deliver its full 4000mAh capacity when you need it again.
Not sure if the NL1840R battery is compatible with your flashlight or device? Our specialized support team is available to assist you: +30 28210 87 733.
Specification Verification: Technical specifications, codes (9060100941, NL1840R, EAN 6952506497515), 18650 size, 4000mAh capacity, Li-ion chemistry, integrated USB-C charging port, and charging indicators are based 100% on official Nitecore manufacturer specifications.
