EagleTac Panasonic 18650 3400mAh Protected Rechargeable Battery

The EagleTac 18650 3400mah batteries use the highest quality Panasonic NCR18650B cells. They provide ultra-high voltage under load and include a protruded button top.
They measures only 68.5mm in height!

Lithium batteries can not be express posted

Availability: Out of stock


Product Description


EagleTac Panasonic 18650 3400mAh

Ultra-high capacity
These second generation 18650 cells offer world-highest capacity at 3400mAh.

Only 68mm in height
We are the first to offer protected 3400mAh 18650 li-ion with only 68mm in height. That makes it highly compatible with all 18650 flashlights and chargers in the market.

Button top design
The protruded button top design makes it work with any flashlight that uses hardware anti-reversed battery polarity protection. It also ensure good conductivity when multiple batteries are used in series.


  • Made in Japan NNP battery cells
  • Uses newest and best LiNiCoAlO2 chemistry
  • 304 Stainless steel button top
  • IC protected against short, over-discharge, over-charge
  • Measures only 68mm in height
  • Button top design
  • Steel plate reinforced bottom
  • Ultra high capacity and high voltage even under heavy loading
  • Safety vent with thermal cut-off protection

Voltage: Typical 3.6V (4.2V when fully charged)
Capacity: 3400mAh (discharged at 0.2C)
Dimensions: 18.6mm x 68mm (+/-0.1mm)
Current over-flow protection: 5A-6A
Weight: 50gram

High capacity
Our 3400mAh cells give the highest capacitor, especially during heavy current loading. It is tested to yield 3400mAh at 0.2C of constant current discharge (see our own discharge testing below).

High voltage platform
The ET 3400mAh 18650 offers high voltage output even under heavy loading. This offers longer constant regulated output runtime in a single cell application (buck circuit type).

High consistency
ET 3400mA batteries, when discharged at 1.5A, yields 3303mAh capacity. When discharged at 680mA, it yields full 3400mAh capacity.

Additional Information

Additional Information

Manufacturer EagleTac
Max lumens No
LED Type No


Good large capacity batteryReview by Ben
No problems so far. (Posted on 14/08/2015)
I need more of theseReview by Melissa
I have been using these batteries in my 600 lumen running headlamp and they are awesome. No issues and I have complete confidence that I can rely on them to get me through an overnight Ultra. I need to buy more of them! (Posted on 22/03/2015)
Long lifeReview by Scott
Long life battery, high quality and protected (Posted on 20/01/2015)
Excellent Products & ServiceReview by Ken
I purchased these items to power handheld torches especially the Jetbeam DDR-30 that I purchased from Bright Nite earlier. All of the products are of the highest quality and the service and advice from Ben has been outstanding. I look forward to many more purchases from him over the years. (Posted on 3/10/2014)
ExcellentReview by Ian
I have been using these batteries in several different torches for a couple of weeks now, mainly just testing the torches, and all still seem to have a near full charge. Although it is only early days there is no indication of any problems. The service from Ben at Bright Nite is outstanding.
(Posted on 20/08/2014)
EagleTac way to goReview by Andrew
These Eagle Tac 3400mah 18650's are great, I can really tell the difference between them and my other 3100mah batteries in terms of run time, and with virtually the same charge time why not have the best. I've thoroughly tested them several times with the multimeter and the protection works spot on, they also have a nice resting voltage of 4.15 v .
In my opinion they are a top pic if your after quality batteries and the guys at Bright Nite provide
a fine service I highly recommend them.

I have no affiliation with Bright Nite I'm just a happy customer. (Posted on 5/08/2014)

Write Your Own Review

You're reviewing: EagleTac Panasonic 18650 3400mAh Protected Rechargeable Battery

How do you rate this product? *

  1 star 2 stars 3 stars 4 stars 5 stars

Product Tags

Product Tags

Use spaces to separate tags. Use single quotes (') for phrases.