EagleTac 3400mAh 18650 Rechargeable Battery

(3 customer reviews)


The EagleTac 3400mah 18650 battery offers longer runtime with its 3400mah output and is suitable for any flashlight or device that takes a 18650 battery. This battery can be recharged with any charger suitable for 18650 batteries. 3.7 volt, and measures only 68mm in height.

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  • Built-in reverse polarity and short-circuit protection
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  • Auto-activation function:
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These second generation 18650 cells offer world-highest capacity at 3400mAh.

Protected 3400mAh 18650 li-ion with only 68mm in height. That makes it highly compatible with all 18650 flashlights and chargers.

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

3400mAh cells give high capacity, especially during heavy current loading. It is tested to yield 3400mAh at 0.2C of constant current discharge 


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).

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

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 reinfocred 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




Additional information

Weight 0.05 kg

3 reviews for EagleTac 3400mAh 18650 Rechargeable Battery

  1. Ros

    Efficient for both home & outdoors!

    Great product that is reliable, light weight & great longevity.

  2. Charlie

    quality long lasting battery

    A good long lasting high capacity battery with short protection control compliments your hardware by having long lasting power when you need it most.

  3. Michael

    great battery long life on one charge

    great battery long life on one charge

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