How to choose high quality and high safety 18650 lithium-ion batteries?

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Then How to choose high quality and high safety 18650 lithium-ion batteries?

1.The nominal capacity of a 18650 battery is related to its endurance, measured in mAh. The higher the capacity, the stronger the endurance. For example, a 2800mAh battery can be continuously discharged for 2 hours with a current of 1.4A.

2. The continuous discharge capacity is represented by the number C. For example, if the capacity of an 18650 battery is 2800mAh and the continuous discharge capacity is 0.5C, then the continuous discharge current is 1.4A. If the continuous discharge capacity is exceeded for a long time, it will seriously affect the battery life and may pose risks such as overheating, even burning, and explosion.

3. Internal resistance is the resistance of the battery itself, and the smaller the internal resistance, the less it consumes and the stronger its discharge capacity. It is recommended not to buy cells that exceed 100m Ω. When using multiple 18650 batteries in series, it is necessary to buy batteries of the same brand and model, otherwise it is easy to have high internal resistance and low capacity.
4. Temperature is a significant factor affecting the lifespan of 18650 lithium batteries. The higher the temperature, the faster the battery ages, and the greater the damage to the internal components of the battery.
5. Choose the most suitable 18650 Lithium Battery based on our electrical equipment, such as the appropriate brand, voltage, capacity, continuous discharge rate, battery life, etc. The most important thing is to choose a battery with high safety.

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