3.7V 2000mAh Li-Ion Battery

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    Note: Starting from March 2024 onwards, this Li-Ion 18650 battery comes wrapped with an Orange color cover. The spec and size remain the same.

    Note: This is NOT an A or AA or AAA type of battery, this is specifically an 18650 Li-ion rechargeable battery with a rated voltage of 3.7V. DO NOT attempt to replace an A-type battery with it.

    Note: Battery's warranty period is 1 week from the purchase date.

    Note:  This battery cannot be shipped to Sabah, Sarawak, or overseas destinations (excluding Singapore).




    This is 18650 battery with a typical capacity of 2000mAh. It is a lithium-ion-based and rechargeable battery (Need proper charger) in cylindrical shape. 18650 battery has become very popular nowadays, many power bank use it as storage(when being charged) and power source (when being discharged). Even electrical vehicles like Tesla are using 18650 batteries particularly to build their battery pack. 



    Since this single-cell battery has higher voltage and capacity, rechargeable; it is a very economical solution for electronic or robotic projects. In some cases, this battery has been used for IoT devices powered by Solar or renewable energy. The battery becomes an energy storage device. And of course, it can be series up to get higher voltage, for example, connecting 2 units in series (2 x 18650 battery holder) to get 7.4V (nominal) or 3 units(3 x 18650 battery holder) to get 11.1V using the 18650 battery holders.


    Please charge it using the proper charger with a balancer. Li-ion batteries should be charged and discharged properly to prevent short lifespan and downgrade of their capacity. We recommend using any of these chargers:

    Note: This 18650 battery comes with both end (positive and negative) flat metal terminals and there is no protection circuit, so please take extra precautions. Check the polarity before connecting it to the load or charger.



    You might need these 18650 sockets/holders to use this battery:

    • Norminal Voltage: 3.7V (fully charged at 4.2V)
    • Minimum discharge voltage: 3.0V, lower is possible but it will shorten the lifespan and reduce the capacity.
    • Typical Rated Capacity: 1960mAh (min), 2000mAh (max)
      • From our test, we manage to get higher capacity at 2150 to 2250mAh from 10 pieces (randomly picked)
    • Recommended charging rate:
      • Rapid Charge: 0.5C, ~1A
      • Standard Charge: 0.2C, ~400mA
    • Charging Voltage: 4.2V ± 0.03V
    • Recommended discharge rate:
      • Maximum discharge: 1C, ~2A
      • Standard discharge: 0.2C, 400mA, down to 3.0V
    • 18650 size: 18mm diameter and 67.5mm length
    • No protection circuit
    • Flat terminal at both end
    • Life cycle: > 300 times if under proper charge and discharge condition
    Packing List
    • 1 x 18650 2000mAh battery


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    Tags: 18650, Lithium Battery, Rechargeable,