18650 rechargeable battery lithium 3.7v 3500mah
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18650 rechargeable battery lithium 3.7v 3500mah
18650 rechargeable battery lithium 3.7v 3500mah

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What is the difference between 18650 lithium batteries with and without battery protection plates

release time:2024-01-30 Hits:     Popular:AG11 battery

  

  1. The height of the battery without a board is 65mm, while the height of the battery with a board is 69-71mm.

  2. Discharge to 20V, if the battery does not discharge when it reaches 2.4V, it indicates that there is a protective board.

  3. If there is no response from the battery after 10 seconds of touching the positive and negative stages, it indicates that there is a protective plate. If the battery is hot, it means there is no protective plate.

  Attention: The third point of testing should not be conducted by professionals, as it may cause a powerful explosion and irreversible personal harm, especially when encountering inferior batteries.

  How to identify whether 18650 lithium batteries have protective plates

  Method 1: The length of a 18650 lithium battery is 650mm, and if it exceeds 1mm, a circular protective plate is often installed at the negative electrode;

  Method 2: Use a 10A or 20A ammeter to instantly test the short-circuit current of the 18650 lithium battery. If the ammeter shows a reading that quickly turns to zero, it indicates that the 18650 lithium battery has a protective plate. If the ammeter shows a large reading or overload, the battery does not have a protective plate or the protective plate is invalid.


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