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What Is 18650 Battery
- Jan 15, 2019 -

An 18650 battery is a cell measured 18mm x 65mm in size. It has become the new gold standard for replaceable and rechargeable batteries.

They deliver a capacity in the range of 1800mAh to around 3500mAh at a voltage of 3.7 volts. They're used in a extensive range of devices from laptops to laser pointers, and camera accessories.

The 18650 isn't a standardized cell. They're not all built equally. The most important trait to consider when looking at 18650 batteries is the continuous discharge rating (CDR), also known as amperage capacity.

The CDR is the rate at which current—measured in amps (A)—can be pulled from the battery without overheat. In order to find out which battery is right for you, you'll need to match the CDR of the battery with the power draw from your device.