What are the advantages of 18650 batteries with and without protective plate?

When we talk about 18650 in daily life, it actually refers to the battery shape specification, which is a standard battery model. Among them, number 18 represents the diameter of 18mm, number 65 represents the length of 65mm, and 0 represents the cylindrical battery. 18650battery originally referred to nickel metal hydride battery and lithium ion battery, nickel metal hydride is less used now, so it mostly refers to lithium ion battery. The nominal voltage of a single section of 18650 lithium ion battery is generally 3.6V or 3.7V; the minimum discharge termination voltage is generally 2.75V. Common capacity is 1200 ~ 3100MAH, higher than 3400 MAH is basically virtual standard. Most of the explosion-proof flashlights, strong-light flashlights and other portable lighting devices commonly used in lighting equipment are powered by 18650 lithium batteries. Because of the advantages of large capacity, long life, high voltage and stability of 18650battery, it is very suitable for portable lighting equipment such as strong light flashlight.

Some readers have some questions about the 18650 battery with and without the protection board, so let's share the benefits of the 18650 battery with and without the protection board.

With the protection plate is suitable for all people to use, there is over discharge protection: when the battery power is about to run out, the voltage to a minimum value of the requirements, the protection plate will be closed, not in the discharge, the product will automatically shut down, forming a kind of over discharge protection. Overcharge protection: when charging the product, when the voltage reaches the maximum battery voltage (4.2v), the protection plate will automatically turn off the power and close, indicating that the charging will not continue, forming an overshoot protection effect. Short circuit protection: when the battery is not careful short circuit, the protection plate will automatically close in a few milliseconds, will not be in the power, at this time is a positive and negative pole to meet a piece is also ok, the formation of a short circuit protection will not cause an explosion. Over current protection: when the battery discharge, the protection plate will have a maximum limit of current, different products are not the same, when the discharge exceeds the current protection plate will automatically close.

The size of 18650battery without the guard plate is shorter than the one with the guard plate, and some devices cannot use the battery with the guard plate due to the initial design. The 18650 battery without the protection plate costs much less, and is suitable for experienced people. If the battery is generally not over discharge or overcharge, its service life is the same as the battery with the guard plate.

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