Custom 4S 12A 16v Li-ion 18650 BMS PCM battery protection board bms pcm for li-ion lipo battery cell pack

Note: This protection board can not be used for lithium iron phosphate battery, hernia lamp, hand drill battery, electric fish electric pool, electric bicycle battery, scooter battery, 775(4A) or more motor, 1W fisheye LED lamp, for the above combination purchase customers please pay attention! .

The described power range is suitable for the following products: low-power inverters, massager battery packs, LED lamp backup power supplies, electronics, solar street lamp batteries, monitoring backup power supplies, and other products.

Note: For discharge products above 3A current, the battery discharge ratio should be above 3C. Rate calculation formula: 1C rate battery, 2000 capacity is equal to 2AH*1=2A upper limit operating current. 3C rate battery, 2000 capacity equal to 2AH*3=6A upper limit operating current. In the use of the battery will heat is the battery ratio is not applicable, this situation can not be used for a long time, the battery will soon be damaged.

Note 1: Wire 0V (B-), 3.7V (B1), 7.4V (B2), 11.1V (B3), 14.8V (B+) strictly according to the diagram, do not intentionally short circuit!

Note 2: After the cable is connected, it needs to be charged first before there will be output. Note 3: When connecting four groups of batteries in series, ensure that the voltage of each group is the same. If the voltage is different, charge each group of batteries separately and use them in series. In the discharge test, the group of batteries whose voltage drops fast is the differential battery. Note: Don't mix good batteries with bad ones! The closer the capacity/internal resistance of the 4 batteries, the better! (Use effect of 2 good batteries +2 bad batteries = use effect of 4 bad batteries).

The properties of the lithium battery protection board: Model: Long HX-4S-A01

Long size: 72*17*3.0mm

Overcharge voltage range: 4.25-4.35v±0

Overdischarge voltage range: 2.3-3.0v±0.05v

Upper working current: 6-8A Working temperature: -40-- +50℃

Upper limit instant current: 12A Storage condition: -40-- +80℃

Static current: less than 30uA

Effective life: more than 50,000 hours

Internal resistance: less than 100mΩ

Short circuit protection: can be protected, need to charge recovery charging voltage: 16.8V-17V