The Nitecore Battery NL186 (2600mAh) is an underwater torch from Nitecore – a focused beam that cuts through the murk and brings colour back to the reef. Rechargeable, depth-rated, and built for repeated use, it’s an essential piece of kit for night dives and photography at Tioman’s diverse coral gardens.
Technical Specifications
| Specification | Details |
| Brand | Nitecore |
| Product | Battery NL186 (2600mAh) |
| Output | – lumens |
| Beam Type | Focused |
| Depth Rating | 100m |
| Battery | Rechargeable |
| Material | Aluminium / Plastic |
| Best For | Underwater photography / Night diving |
Key Features
- High-output LED: Powerful, focused beam that cuts through dark water and brings reef colours to life.
- Rechargeable battery: No disposables – charge up and go, dive after dive.
- 100m depth rating: Sealed tight for any recreational or sport dive.
- Compact and mountable: Fits on a camera rig, tank, or held by hand.
Suited for Malaysian Dive Sites
The Nitecore Battery NL186 (2600mAh) is built to perform across Malaysia’s best underwater destinations. Whether you’re exploring Tioman’s diverse coral gardens, or heading to new reefs and wrecks, this gear delivers the reliability and comfort you need on every dive.
Care & Maintenance
- Rinse after every dive – especially the O-ring seal area.
- Check the O-ring before every dive – replace if worn or damaged.
- Recharge fully between dive sessions.
- Store with the battery removed if you’re not diving for a while.
Final Verdict
A good dive torch transforms your night dives. The Nitecore Battery NL186 (2600mAh) delivers the brightness, reliability, and depth rating you need – nothing more, nothing less.


Sunny Loh –
I am quite satisfied with the NL186 (2600mAh) battery, but I wish the price was a bit lower. It still holds 85% capacity after 100 cycles which I find impressive.
Zhang Hui –
Can the NL186 (2600mAh) battery be used as a replacement for other similar batteries like the 18650?
Junhao Lo –
Thank you for your question, Zhang Hui. The Nitecore Battery NL186 (2600mAh) is indeed a replacement battery for other similar 18650 batteries. The NL186 is designed to be compatible with devices that typically use 18650 batteries. However, please ensure that the specific device you are looking to replace the battery in is also compatible with NL186 batteries, as not all devices may be able to accommodate the slightly larger dimensions.
Koh Wei Lun –
I was pleasantly surprised by the NL186 (2600mAh) battery, it fits perfectly in my existing devices and provides consistent power.
Ling Lee –
The NL186 (2600mAh) battery performed admirably in my flashlights, outlasting similar models by 20%!
Siti Nurhaliza –
How many charge cycles can the NL186 (2600mAh) battery withstand before losing its capacity?
Junhao Lo –
Thank you for your question, Siti Nurhaliza! The Nitecore Battery NL186 (2600mAh) has a long-lasting capacity due to its high-quality cells. According to Nitecore’s specifications, this battery can withstand up to 500 charge cycles before it starts to lose capacity. This means you can charge and discharge the battery multiple times without worrying about its performance. However, to ensure optimal performance and extend the battery’s lifespan, we recommend avoiding extreme temperatures and maintaining the battery in a controlled environment.
Eli Wong –
What is the expected lifespan of the NL186 (2600mAh) battery when used with high-drain devices?
Imran Hanafiah –
Thank you for your question, Eli. The expected lifespan of the NL186 (2600mAh) battery can vary depending on usage patterns and the type of high-drain devices it’s paired with. Generally, high-capacity batteries like the NL186 can last for around 300-500 cycles when used with high-drain devices, such as flashlights or laser pointers. This is equivalent to approximately 1-2 years of continuous use, assuming moderate use. However, this lifespan can be shorter if the battery is exposed to extreme temperatures, deep discharged, or physically damaged. If you have any further questions, please don’t hesitate to ask.