5 Strings of 18 5V 18650 Lithium Battery Protection Board to Prevent Overcharge and Overdischarge for Sale with BTC on Gipsybee.com


Price: 0.0002419 BTC

Battery Protection Module

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Product Specification


The lithium battery protection board cannot be used for lithium iron phosphate batteries, hernia lights, hand drill battery packs, electric fish machine battery packs, electric bicycle battery packs, children's car batteries, power motors above 550, 1W fisheye LED lights, Please pay attention to customers who purchase the above combination! .

The power range described is applicable to the following products:

Massager battery pack, LED lamp backup power supply, 12V electronic products, solar street lamp battery pack, monitoring backup power supply, and other products.


1. For products with a current of more than 3A, the battery discharge rate should be more than 3C.
2. Calculating formula for rate: 1C rate battery, 2000 capacity is equal to 2AH*1=2A working current. 3C rate battery, 2000 capacity is equal to 2AH*3=6A working current.
3. The battery will heat up during use, which means that the battery rate is not applicable. In this case, the battery cannot be used for a long time, and the battery will be damaged quickly.
4. Wiring 0V(B-), 3.7V(B1), 7.4V(B2), 11.1V(B3), 14.8V(B4), 18.5V(B+) strictly according to the diagram, don't short circuit intentionally!
5. After the cable is connected, it needs to be charged before output.
6. When connecting 5 sets of batteries in series, please ensure that the voltage of each set of batteries is the same. If they are not the same, please charge each set of batteries separately and use them in series. During the discharge test, the battery with the fastest voltage drop is the poor battery.
Explain: Do not mix good batteries and bad batteries together! The closer the capacity/internal resistance of the 5 groups of batteries, the better! (3 good batteries + 2 bad batteries = 5 bad batteries).
Product size: 89*18mm
Product weight: 10 grams 

Package includes:

1 x Lithium Battery Protection Board