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  • Eagletac 18650 3400mAh

Eagletac 18650 3400mAh


Brand: Eagletac

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Product Description

Note: Canada Post does not allow Air shippment of Lithium Batteries.

Chemistry: Lithium Ion

Classification: Protected 18650

Size: 18680

Build: Cell, Button Top

Weight: 50 g

Height: 68 mm ± 0.1 mm

Diameter: 18.6 mm ± 0.1 mm

Quantity Per Pack: 1

Nominal Voltage: 3.7 V

Maximum Voltage: 4.2 V

Nominal Capacity: 3400 mAh @ 0.2C or 680 mA
Capacity: 3300mAh @ 1.5 A

Operating Temperature: -20°C ~ 60°C

Maximum Discharge Current: 5 A

Self Discharge Rate: ~10% per month

Recharge Cycles: 300 - 600

Current Overflow Protection: 5 A - 6 A


  • Use a Constant Current, Constant Voltage (CC/CV) Charger.
  • Environment Temperature: 0°C to 40°C


  • Less than 30 days: -20°C to 45°C
  • Less than 90 days: -20°C to 35°C
  • Less than 1 year: 0°C to 25°C
  • Best: 10°C to 15°C
  • When leaving Li-Ion batteries in storage, recharge every 9 months to ensure battery is still functional.
  • When using Li-Ion batteries that have been in storage for over 5 months, it is recommended to recharge the batteries. Li-Ion batteries in storage for over 9 months will require recharging before use.


Each battery is in an anti-static bag and individually boxed.


No Memory Effect Capacity Loss - Recharging a Li-Ion battery before it has been fully discharged will not reduce the storage capacity of the battery.

No Over Discharge Leakage - While Alkaline batteries will eventually leak when over discharged, Li-Ion batteries will not.

Each battery has a built in protection circuit to prevent over charge, over discharge and short circuit.


Over Discharge - If a Li-Ion battery is over discharge it might not be able to be recharged. Protected Li-Ion batteries have a circuit that prevents over discharge.

Over Charging - If a Li-Ion battery is over charged or charged too fast, it may over heat and trigger a safety built into the battery (such as a pressure release valve or charge connection) that will render the battery useless. Most chargers have measures to prevent over charging and over heating of L-Ion batteries. Protected Li-Ion batteries have a circuit that prevents over charging.

Do not expose any batteries to flame or other extremely high temperatures.

Do not store batteries in direct sunlight.

Additional Details:

Chemistry: LiNiCoAlO2

Button Top Material: 304 Stainless Steel

Made in Japan, NNP battery cells - Panasonic.

Product Reviews

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  1. Great Product Review Rating

    Posted by Unknown on 19th Jan 2015

    This battery is great. Price is great. This battery cost the same as the two normal energizers but with 10 x the life time seeing it is rechargeable. I would recommend this product to anyone who owns the flashlight required for this battery.

  2. excellent Review Rating

    Posted by Unknown on 26th Mar 2014

    outlasted my expectations.

  3. Work Great with High powered flashlights Review Rating

    Posted by Unknown on 22nd Mar 2014

    The EagleTac 3400mAh Protected Li-ion 18650 Rechargeable is an exceptional battery from an extremely reputable company. This battery delivers remarkable power and unparalleled storage capacity! These last a long time, and have fitted 2 of my favorite flashlights an Fenix PD35, and Zebra light SC600 MK 2, each fine flashlights. I would recommend these without reservation.

  4. Extreme long lasting battery Review Rating

    Posted by Roy MacTavish on 3rd Aug 2013

    This is a fantastic battery. All might lights run for a very long time on their high and turbo setting thanks to this bad boy battery. Example: Fenix TK22 - Rated to run for 4 hours 30 minutes on high with a 2600mah battery. With this battery I get 5 hours 50 minutes of run time. That's another hour and 20 minutes of run time. If you need an 18650 battery then buy this one. The extra $6 or $7 is worth it. Nothing worse then being in the dark with a flashlight that won't turn on because of dead batteries.