3S 20A Li-ion Lithium Battery 18650 Charger Protection Board PCB BMS 12.6V Cell Charging Protecting Module
Notice:
The lithium battery protection board cannot be used for lithium iron phosphate batteries, hernia lights, hand 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 power range described is applicable to the following products:
Massager battery pack, LED lamp backup power supply, 12V electronic products, solar street lamp battery pack, monitoring backup power supply, and other products.
Note: For products with a current above 3A, the battery discharge rate must be above 3C.
The magnification calculation formula: for a battery with a 1C magnification, the capacity of 2000 is equal to 2AH*1=2A working current.
3C rate battery, 2000 capacity is equal to 2AH*3=6A working current.
In use, the battery will heat up, which means that the battery rate is not applicable. In this case, the battery cannot be used for a long time, and the battery will be damaged quickly.
Note 1: Wiring 0V (B-), 3.7V (B1), 7.4V (B2), 11.1V (B+) strictly according to the diagram, do not intentionally short-circuit!
Note 2: After the line is connected, it needs to be charged before output.
Note 3: When connecting 3 sets of batteries in series, please ensure that the voltage of each set of batteries is the same. If they are not the same, please charge each set of batteries separately and use them in series. During the discharge test, the battery with the fastest voltage drop is the poor battery.
Explain: Do not mix good batteries and bad batteries together! The closer the capacity/internal resistance of the 3 sets of batteries, the better! (2 good batteries + 1 bad battery use effect = 3 bad batteries use effect).
Note: Due to the large current-limiting resistance used, try not to short-circuit the output of the combined battery pack, especially for large-capacity and high-current battery packs. Short-circuit may damage the board. Please pay attention, thank you.
The attributes of the lithium battery protection board:
Model: HX-3S-FL20 Overcharge voltage range: 4.25-4.35v¡¾0.05v
Size: 58*20*3.6mm Over-discharge voltage range: 2.5-3.0v¡¾0.05v
Maximum working current: 15A Working temperature: -40---+50¡É
Upper limit instantaneous current: 20A Storage conditions: -40-- +80¡É
Quiescent current: less than 30uA Effective life: more than 30,000 hours
Internal resistance: less than 100m¥Ø. Short-circuit protection: can be protected, delayed self-recovery.
Charging voltage: 12.6V-13V