Nitecore NL166 RCR123A 16340 650mAh Battery - Protected Button Top


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Description

Unleash the full potential of your high drain devices with the Nitecore NL166, a specialized 650mAh RCR123A rechargeable battery engineered for superior performance. Ideal for high-power LED searchlights and tactical flashlights, this battery provides a robust 6.5A of maximum continuous discharge, ensuring your devices operate optimally when you need them the most. Compact, powerful, and built to last, the NL166 is the perfect power source for all your high-intensity needs.

  • High Drain Compatibility: Designed specifically for devices that require a high discharge rate, delivering a maximum continuous 6.5A output.
  • Optimized Capacity: 650mAh provides reliable and efficient power for critical applications in high drain devices.
  • Advanced Safety: Integrated with robust safety features to prevent overcharge, over-discharge, and shorts, safeguarding both the battery and your devices.
  • Compact Dimensions: Measuring just 34.8mm in length and 16.6mm in diameter, this battery offers high power in a compact form, ideal for portable devices.
  • Lightweight Design: Weighs only 17.8 grams, making it an ideal choice for carrying and using on the go without adding bulk.


SPECIFICATIONS

Manufacturer: Nitecore
Model: NL166
Size: RCR123A/16340
Positive Terminal: Button Top
Nominal Capacity: 650mAh
Continuous Discharge Rating (max): 5A Max Continuous
Nominal Voltage: 3.7V
Maximum Voltage: 4.2V
Discharge cut-off Voltage: 2.75V
Protected: YES, PCB.
Rechargeable: Yes
Approx. Dimensions: 16.6mm x 35mm
Approx. Weight: 17.85g
Country of Origin: China
Data Specification Sheet: Nitecore NL166 RCR123A 16340 650mAh Battery Datasheet

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⚠ 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.
  • 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.

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