9S 21A lipo lithium Polymer BMS/PCM/PCB battery protection circuit board for 9 Packs 18650 Li-ion Battery Cell with Balance with temperature switch
Note: this BMS with balance function. your battery need match, battery should have good consistency, if not sure, please use new brand battery.
Features:
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, or load short circuit);
4) MOS transistor can control the battery charge and discharge;
5) low standby current consumption.
Parameter:
over charge: 4.325V
over discharge: 2.5V
charge voltage: 4.2 V * 9 = 37.8V
continuous work current: 21A
over current: 47.6A
balance voltage: 4.2V
balance current: 45mA
size: 112mm * 60mm * 10.4mm
BMS solder instruction:
B- connect to battery negative end
B+ connected battery positive end
B9 Connect the point between battery 1 and battery 2
B8 Connect the point between battery 2 and battery 3
B7 Connect the point between battery 3 and battery 4
B6 Connect the point between battery 4 and battery 5
B5 Connect the point between battery 5 and battery 6
B4 Connect the point between battery 6 and battery 7
B3 Connect the point between battery 7 and battery 8
B2 Connect the point between battery 8 and battery 9
charge: B+ and P-
discharge(load): B+ and P-
Applications:
9S Li-ion18650,LiCoO2,LiMn2O4,Li(NiCoMn)O2 rechargeable batteries
9S Lipo rechargeable batteries
Notice:
1. Please pay attention to the use condition of input and output voltage and load current , make the protective plate within the power consumption of no more than specification allows power consumption;
2. Connect the battery will happen cannot discharge status, in this case, connect the charge can be restored to normal working state;
3.If a set of batteries with over-discharge and over-charge cells, the bms cannot be charge and discharge.