Description:
1) high-accuracy voltage detection circuit;
2) terminal of the charger using high voltage device;
3) Built-in three-stage over-current detection circuit (over-current 1, over-current 2, load short circuit);
4) MOS transistor can control the battery charge and discharge.
5) BMS is used for 3.7V li-ion battery with balancing function
6) Passive Cell Balancing

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Q: I'm not getting a voltage reading between P- and P+
A: Connect a charger or power supply to the BMS and feed it at charging voltage for 1-3 seconds and then try again

Q: The voltage skip to fully charge while charging, but it isn't when not connect to a charger
A: Since this is a passive balancing is it will stop charging when the one cell first reaches full capacity, and the other cells isn't. So you'll have to make sure all cells are equal charge before install.
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Package Included:
1x BMS

#3.7V #18650 #MOS #Li-ion #Lithium #Battery #Charging #BMS #Protection #Board