4S 30A LiFePO4 BMS/PCM/PCB battery protection circuit board for 4 Packs 18650 Battery Cell for electril tools.
The BMS is used for LiFePO4 battery
this PCM can use in electric tools, like screwdriver and drill.
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.
Notice:
If the picture is not the same as the parameters,please check according to the parameters.
We welcome customized bms, hope to hear from your chatting
Parameter:
over charge: 3.85V
over discharge: 2.3V
charge voltage: 3.65V * 4 = 14.6V
continuous charge work current: 7.5A
continuous discharge work current: 30A
over current: 40A
balance voltage: not support
balance current: not support
size: 60mm * 38mm * 10mm
wiring diagram
P+ charge/discharge positive
CH- charge negative
P- discharge negative
charge: P+ and CH-
discharge: P+ and P-
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Applications:
4S lifepo4 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.