This protective board can not be used for lithium iron phosphate batteries, hernia lamps, hand drill batteries, electric fish machine batteries, electric bicycle batteries, children’s car batteries, 775 (4A) above motors, 1W fish eye LED lights, for the above combination of customers please pay attention!
The power range described is applicable to the following products:
Massage battery pack, LED lamp standby power supply, 12V electronic products, solar street lamp battery pack, monitoring standby power supply, and other products.
Note: For discharge products above 3A current, the discharge rate of batteries should be above 3C.
Formula for calculating the ratio: 1 C ratio battery, 2000 capacity is equal to 2AH*1=2A working current.
3C rate battery, 2000 capacity is equal to 2AH*3=6A working current.
Battery heating in use means that battery rate is not applicable. This situation can not be used for a long time and the battery will be damaged quickly.
Note 1: Strictly connect 0V (B-), 3.7V (B1), 7.4V (B2), 11.1V (B+) according to the figure, do not intentionally short circuit!
Note 2: After wiring, it needs to be charged before there is output.
Note 3: When connecting three batteries in series, please ensure that the voltage of each batteries is the same. If not, please fill each batteries separately and use them in series. In discharge test, the group of batteries with the fastest voltage drop is the poor battery.
Explanation: Don’t mix good batteries with bad batteries! The closer the capacity/internal resistance of three batteries is, the better! (The use effect of two good batteries + one poor batteries = the use effect of three poor batteries).
Attributes of the lithium battery protection plate:
Model: HX-3S-FL25A-A Overcharge Voltage Range: 4.25-4.35v +0.05v
Size: 56*45*4.0mm Overdischarge Voltage Range: 2.3-3.0v+0.05v
Upper limit working current: 20-25A (pay attention to heat dissipation) working temperature: -40-+50 ~C
Upper Limit Instantaneous Current: 35-40A Storage Conditions: -40–+80 Temperature
Static current: less than 30 uA effective life: more than 30 000 hours
Internal resistance: Short circuit protection less than 100m_: Protective, delayed self-recovery.
Equilibrium current: 45 mA
Charging Voltage: 12.6V-13V
Test points: S1 S2 short circuit P + P – will output voltage, indicating that all MOS protection is normal. Adding a normal open temperature detection can expand the role of temperature protection.
Dimension and device description of the protective plate;
The size of the protection board is 56*45*4.0mm, and the components are Hongkang 2110-CB protection chip+Hongkang BB3A equalization IC and authentic AOD472*8 or AOD452*8.