7,4 V 2 húros 18650 lítium akkumulátor védőkártya dupla húros védelmi chip 8,4 V túláram túllépés 4A
7.4V 2 strings 18650 lithium battery protection board double string protection chip 8.4V overcurrent overshoot 4A
The power range described by the lithium battery protection board is suitable for the following products:
Massager battery pack, LED light backup power supply, 12V electronics, solar street light battery pack, monitoring backup power supply, and other products.
Note: The lithium battery protection board cannot be used for lithium iron phosphate batteries, xenon lamps, electric 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 main function:
Overcharge protection, overdischarge protection, short circuit protection, overcurrent protection
Wiring Instructions:
B is connected to the positive pole of the battery
B- Connect to the negative pole of the battery
MB Connect to the connection point between battery 1 and battery 2
P is connected to the positive pole of the charging/discharging terminal (common to the charging terminal/discharging terminal)
P- Connect to the negative pole of the charging/discharging terminal (common to the charging terminal/discharging terminal)
Tips: When assembling the battery pack, the battery voltage, capacity, and internal resistance must be well matched. The battery voltage is about 3.7V at the rated voltage. After the battery pack is assembled, there is no output, and it can be charged with 8.4V voltage.
Upper working current

3A
Upper limit instantaneous current

5A
Overcharge voltage range

4.28V±0.05V
Overcharge voltage range

2.9V±0.05V
Quiescent current

<3uA
Charging voltage

8.4~9V
Short circuit protection

Can be protected, delayed self-recovery
Size

35*16.6*2.5mm
1005003781744909 - fullstar