note:
This protection board cannot be used for lithium iron phosphate batteries, hernia lamps, electric drill battery packs, electric fish machine battery packs, electric bicycle battery packs, stroller batteries, motors above 775 (4A), 1W fisheye LED lights, for the above Please pay attention to customers who purchase in combination!
The described power range applies to the following products:
Low-power inverter, massager battery pack, LED lamp backup power supply, electronic products, solar street lamp battery pack, monitoring backup power supply, and other products.
note:
For products discharged above 3A current, the battery discharge rate must be above 3C.
Rate calculation formula: 1C rate battery, 2000 capacity is equal to 2AH*1=2A upper limit working current.
3C rate battery, 2000 capacity is equal to 2AH*3=6A upper limit working current.
In use, the battery will heat up, which means that the battery rate is not applicable. In this case, it 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 (B3), 14.8V (B+) strictly according to the diagram, do not intentionally short circuit!
Note 2: After connecting the cable, you need to charge it first, then there will be output.
Note 3: When connecting 4 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 group of batteries whose voltage drops rapidly is a poor battery.
Explain:
Do not mix good batteries and poor batteries together! The closer the capacity/internal resistance of the 4 sets of batteries, the better! (2 good batteries + 2 poor batteries = 4 bad batteries).
The properties of the lithium battery protection board:
Model: HX-4S-D22
Overcharge voltage range: 4.25-4.35v±0.05v
Size: 34.7*35.5*3.6mm
Over discharge voltage range: 2.3-3.0v±0.05v
Maximum working current: 10A
Working temperature: -40---+50℃
Maximum instantaneous current: 20A
Storage conditions: -40-- +80℃
Quiescent current: less than 30uA
Effective life: more than 50000 hours
Internal resistance: less than 100mΩ
Short circuit protection: can be protected, need to charge to restore
Charging voltage 16.8V-17V
The protection board size and device description;
The size of the protection board is 34.7*35.5*3.6mm; the components are S-8254AA protection chip and D403*4
S point description: adding a normally open temperature sensor switch can expand the temperature protection effect
No-delivery refund
