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The number of strings for each lithium-ion battery protection board is different, and the wiring method for the same port is also different. If you want to be precise for each product, please refer to the specific page of the protective board, but the overall wiring remains unchanged. Due to the activity of lithium-ion batteries, it is necessary to add a protective plate when using lithium-ion batteries to guard against overcharging, overcurrent, and leakage. Now let's analyze how to wire the lithium-ion battery protection board.

Lithium ion battery protection board is used for charging and discharging protection of series connected lithium-ion battery packs; When fully charged, it can ensure that the voltage difference between each individual battery is less than the set value (usually 20mV), achieving uniform charging of each individual battery in the battery pack and effectively improving the charging effect under series charging mode; Simultaneously test the overvoltage, undervoltage, overcurrent, short circuit, and over temperature status of each individual battery in the battery pack to protect and extend the battery's lifespan; Under voltage protection prevents each individual battery from being damaged due to over discharge during discharge use.

Lithium ion batteries are all composed of a battery and a protective plate. Three wires will only appear on the protection board today, and the battery will always have only two wires. There are two types of lithium-ion batteries, and the 3.7V one is clearly non phosphate iron aluminum, which can be directly replaced.

Replacement is very simple (pay attention to the positive and negative poles)

1: Remove the packaging of the original lithium-ion battery, and then use an electric soldering iron to separate the protective plate from the battery.

2: Similarly, remove the protective plate of your new lithium-ion battery and connect the battery to the old protective plate.

P+and P - are connected to the output. Connect b+to the positive pole of the battery cell, and b - to the negative pole. If multiple cells are connected in series, the negative pole of b1 and the positive pole of b2 are connected together, and so on. The negative pole of the last cell is connected to bn -. Weld the wires first, and then connect the battery. Do not connect them incorrectly. If there is no output after completion, remember to use a charger to charge and activate the charging interface on the P+and P - leads.

Some lithium-ion batteries have a temperature protection line as the third line, while others have a battery information verification line (such as prompting an alarm when replacing a non original battery). Lithium ion batteries are all composed of a battery and a protective plate. Three wires will only appear on the protection board today, and the battery will always have only two wires. There are two types of lithium-ion batteries, and the 3.7V one is clearly non phosphate iron aluminum, which can be directly replaced.

How to wire the 36V lithium-ion battery protection board?

1. First, connect 12 lithium-ion batteries in series. If there are 24 sections, they can be connected in parallel first and then in series!

2. Connect the negative pole of the battery pack according to B. In sequence, b1_2-b3,,, b10ub1l_b2

3. Same interface: The positive electrode of the lithium-ion battery pack is the positive electrode for charging and discharging. C: Can serve as a negative electrode for charging and a negative electrode for discharging.

4. Sub interface: The positive electrode of the lithium-ion battery pack is the positive electrode for charging and discharging. C: Can serve as a negative electrode for charging. D: Can only serve as the negative electrode for discharge.

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