Rechargeable 18650 battery with built-in USB-C port for direct charging. Of course, there is also the possibility to charge it on any charger.
During charging from the built-in USB-C port a red indicator light (next to the positive pole) will remain lit. Once charging is complete, a second green indicator light will illuminate.
It has internal safety features such as a pressure relief valve, a smart built-in charging circuit that protects against overcharging, overdischarging and short circuiting.
It is compatible with most flashlights that accept 18650 batteries. It is insured worldwide

01. NL-1834R Li-ion Rechargeable Battery with Built-in USB-C Charging Port
– 3400mAh Capacity
– Recharge from USB-C Port
– Internal Safety Circuits
– No Mercury, No Lead
* These images are only for guidance purposes, actual result may vary depending on environmental factors. They are the intellectual property of NITECORE. All rights to take legal action are reserved.

02. Large capacity 3400mAh
Ensures stable and long-lasting energy supply for various devices.
* These images are for guidance purposes only, the actual result may vary depending on environmental factors. They are the intellectual property of NITECORE. All rights to take legal action are reserved.

03. Charging indicator lights
– Red indicator light during the charging process
– Green indicator light when charging is complete and the battery is full
* These images are for guidance purposes only, the actual result may vary depending on environmental factors. They are the intellectual property of NITECORE. All rights to take legal action are reserved.

04. Two ways to charge the battery
– Via the built-in USB-C port
– Via an external charger
* These images are for guidance purposes only, the actual result may vary depending on environmental factors. They are the intellectual property of NITECORE. All rights to take legal action are reserved.

05. Internal safety features
– Built-in intelligent protection circuit on the positive pole that protects against over-charging, over-discharging and short-circuiting.
– Pressure relief valve that is activated in the event of a rapid increase in temperature.
* These images are for guidance purposes only, the actual result may vary depending on environmental factors. They are the intellectual property of NITECORE. All rights to take legal action are reserved. 

06. Specially designed high efficiency protection circuit
– Effective protection against overcharge, overdischarge and short circuit
– Incorporates a high quality protection circuit
– Incorporates a very powerful MOS-FEE in the current regulation unit for better efficiency and excellent performance.
* These images are for guidance purposes only, the actual result may vary depending on environmental factors. They are the intellectual property of NITECORE. All rights to take legal action are reserved. 

07. External safety features
– It is equipped at both ends with nickel-plated steel guards ensuring high impact resistance, good electrical conductivity and resistance against oxidation.
– Coated with durable metal film that protects against abrasion.
* These images are for guidance purposes only, the actual result may vary depending on environmental factors. They are the intellectual property of NITECORE. All rights to take legal action are reserved. 

08. Free of Mercury, Free of Lead and Cadmium
Safe use and storage
* These images are for guidance purposes only, the actual result may vary depending on environmental factors. They are the intellectual property of NITECORE. All rights to take legal action are reserved. 

09. Low cost and environmentally friendly
One NL1834R battery can be recharged up to 500 times!
– One NL1834R rechargeable battery is equal to 500 pairs of CR123 / 3V batteries
* Data from NITECORE lab is calculated for reference only
* These images are for guidance purposes only, actual result may vary depending on environmental factors. They are the intellectual property of NITECORE. All rights to take legal action are reserved. 

10. Safety and Reliability
Globally Insured while having Global Certificates
* These images are for guidance purposes only, actual result may vary depending on environmental factors. They are the intellectual property of NITECORE. All rights to take legal action are reserved. 

11. Technical characteristics

Capacity3400mAh 3.7V (12.58Wh)

EntranceUSB-C: 5V – 1A

Diameter18.5mm ±0.3mm

Length71mm ±0.3mm

Weight50g

Warranty period 12 months from date of purchase