Klarus 3600mAh 18GT-36 18650 Rechargeable Battery

(7 customer reviews)


For maximum performance and reliability: The Klarus 18GT-36 3600mAh 18650 rechargeable Li-Ion battery is ideal for the Klarus XT12GT and XT2CR. It is also great for charging other compatible  18650 powered items. 


  • Nominal Voltage: 3.6V
  • Weight: 52 g
  • Safety Certifications: CE, ROHS

In stock

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  • Microcomputer control system allows each of the two battery slots to charge individually
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  • Li-ion:26650 22650 18650 18490 17670 17500 16340 14500 10440 16340(RCR123A)
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  • Built-in reverse polarity and short-circuit protection
  • Features over-charge protection to prevent battery damage. Automatically stops charging when complete
  • Auto-activation function:
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  • b).Will not charge a battery that cannot be reactivated.
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  • Optimal heat dissipation design for long lifespan


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SKU: Klarus 3600mah 18GT-36 Categories: , , ,



  • Battery Size: 18650
  • Battery Chemistry: Li-Ion
  • Nominal Voltage: 3.6V
  • Nominal Capacity: 3600 mAh
  • Protected: Yes
    • Overcharge
    • Over-discharge
    • Short circuit
    • Overheating
  • Weight: 52 g
  • Max Continuous Discharge: 7A
  • Recommended Charging Current: 2A
  • Max Charging Current: 3.6A
  • Working Temperature: -10 to 60° C
  • Charge Cycles: 500
  • Safety Certifications: CE, ROHS



Additional information

Weight 0.02 kg

7 reviews for Klarus 3600mAh 18GT-36 18650 Rechargeable Battery

  1. Lloyd Lord (verified owner)

    I bought this to replace my original klarus 18650, which died recently. These batteries are worth every cent. I find the reliability and quiality of the battery is the best of the bunch I have used. The last battery lasted for 5 years and I look forward to another long lasting battery for my klarus torch.

  2. Simmo (verified owner)

    When my original battery went flat and wouldn’t charge I thought damn…. how long do these batteries last. I looked up when I’d purchased it and I think 5 years is very acceptable. Thanks Klarus. The original was only 3200mAh so I was very happy that now it’s gone up a notch to 36000mAh capacity and it was on special.

    I’m looking forward to 5+ more years with a great portable torch. Thanks Klarus

  3. Rory

    Excellent product

    These batteries are great for my Klarus 3 light hunting light. Not only will they last all night I took 3 away on a hunting trip in a remote area and didn’t even use the third after a weeks worth of use.

  4. Steve

    Great battery

    Powerful, long-lasting. Cant go wrong. Thanks

  5. David

    Still good

    With the head lamp

  6. Lachlan


    I bought a number of torches for department supervisors and have found it very useful to have some spare batteries of which this one is of excellent quality. Would also recommend a charging unit like the Klarus smart charger to be charge multiple batteries at the same time. This has helped me out on numerous occasions when multiple departments forget to charge their torches and need batteries quickly.

  7. Les

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