Key Features
- High-Capacity 21700 Battery: 4500mAh lithium-ion cell for extended device operation.
- Protected Button Top Configuration: Integrated PCB for enhanced operational safety.
- Consistent Energy Delivery: Rated for 5A continuous discharge.
- Durable Construction: Designed for long-term reliability and repeated use.
- Eco-Conscious Design: Rechargeable up to 500 times to reduce waste.
Overview
The Nitecore NL2145 is a protected 21700 lithium-ion battery built for professional and consumer applications where capacity, safety, and reliability are essential. With its high 4500mAh capacity and integrated protection circuitry, it delivers dependable power in a compact, device-compatible format suitable for modern high-drain electronics.
Applications / Uses
- Commercial and consumer lighting equipment
- Portable electronic devices
- Emergency and preparedness systems
- OEM and R&D applications
- Protected 21700 battery systems
SPECIFICATIONS
| Manufacturer: | Nitecore |
| Model: | NL2145 |
| Size: | 21700 |
| Positive Terminal: | Button Top |
| Nominal Capacity: | 4500mAh |
| Continuous Discharge Rating (max): | 5A |
| Nominal Voltage: | 3.6V |
| Maximum Voltage: | 4.2V |
| Protected: | Yes (PCB) |
| Rechargeable: | Yes |
| Approx. Dimensions: | 21.8mm x 75.5mm |
| Approx. Weight: | 76g |
Nitecore NL2145 21700 4500mAh Data Specification Sheet
⚠ Important Safety Warnings
While this battery is equipped with built-in protection circuitry to help prevent overcharging, over-discharging, and short circuits, improper handling or misuse can still result in FIRE, EXPLOSION, or THERMAL RUNAWAY, causing personal injury or property damage. Users must read and follow all safety guidelines before purchase and use. Click here to review the full safety guidelines.
- Intended Use: This battery is designed for use in flashlights, headlamps, and similar devices that require a button top configuration. Ensure compatibility with your device before use.
- Protection Circuit Limitations: While the protection circuit provides additional safety, it cannot prevent damage caused by misuse, including exposure to liquids, extreme heat, or physical damage.
- Storage & Transport: Always store batteries in protective cases to prevent accidental contact with metal objects (e.g., keys, coins, tools) that can cause a short circuit. Do not store loose batteries in pockets, bags, or other uncontrolled environments.
- Inspection: Do not use if the battery is dented, leaking, bulging, or if the outer wrapper or button top is damaged.
- Charging: Use a smart charger specifically designed for button top protected batteries. Do not exceed the battery's voltage and current specifications. Never leave the battery unattended while charging.
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Prohibited Activities:
- Do not expose the battery to water, fire, or high heat.
- Do not modify, puncture, crush, or attempt to disassemble the battery.
- Do not use the battery if it becomes unusually hot during use or charging.
- Emergency Response: If the battery overheats, emits smoke, or shows other signs of failure, stop using it immediately. Move the battery to a safe, non-flammable surface (e.g., sand or concrete) and follow emergency protocols.
Disclaimer
18650Battery.com is not responsible for any damages, injuries, or claims arising from improper use, handling, or failure to follow these safety guidelines. Lithium-ion batteries require strict adherence to all safety protocols. It is the reseller's responsibility to ensure all safety warnings and product guidelines are effectively communicated to customers. Users and resellers assume full responsibility for the safe handling, usage, and distribution of this product.