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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Why do some batteries add a protective board, some do not need?home solar energy storage lithium battery wholesale

release time:2023-05-08 Hits:     Popular:AG11 battery

  

  Add a protective board to the battery for user safety. Lithium batteries have its safe discharge and charging and overcurrent restrictions. Adding a protective board is to do not exceed the safety range when using a lithium battery.

  For example, the upper limit of a lithium battery safety voltage is 4.25V. If it does not add a board, it will always be charged when using a charger that is not charged with overcharge protection. Just like a person is full, you still call him to eat, and finally it is to death, and the lithium battery will be killed. The function of adding a protective board is to stop charging when he is full.

  The principle of discharge and overcurrent detection is the same. Therefore, the battery of the protective board can be added to control the lithium cell work in the prescribed working environment. The charging protection voltage is generally protected at 4.25V. The discharge protection is generally protected at 2.75V. The charging current can be greatly improved within the maximum tolerance range of the lithium battery.

  The battery belt protective board will also limit the output current. Generally speaking, there are chips on the protective board, about 2A of a single chip, and about 4A of the dual chip.

  Many high -power equipment such as electronic cigarettes, modeling, and electric vehicles in life require large -current power supply. Because it is easy to be used by violence (referring to excessive charging), the battery life is relatively low; at the same time The volume is too large; the price of ultra -low internal resistance is very expensive. In order to reduce the discharge loss and increase the cost performance, generally do not add a protective board, and choose to do the protection function of battery on the electric equipment.


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