3S String 25A 11.1V 12V 14.8V 16.8V 18650 Lithium Battery Overcharge and Over Discharge Protection Board

Note: 1. Lithium battery protection board can not be used for lithium iron phosphate battery, xenon lamp, hand drill battery pack, electric fish battery pack, electric bicycle battery pack, children's car battery, 550 or more power type motor, 1W fisheye LED lamp. 2. For discharge products above 3A, the discharge rate of the battery should be more than 3C. - Magnification calculation formula: 1C rate battery, 2000 capacity is equal to 2AH*1=2A working current. - 3C rate battery, 2000 capacity equals 2AH*3=6A working current. 3. The battery will be hot during use, indicating that the battery override is not applicable. This condition cannot be used for a long time, otherwise the battery will be damaged quickly. 4. Strictly connect the wiring according to the diagram 0V (B-) 3.7V (B1) 7.4V (B2) 11.1V (B+) be careful not to short circuit. 5. After connecting the line, you need to charge first to have output. 6. When connecting 3 sets of batteries in series, please ensure that the voltage of each set of batteries is the same. If they are different, please fill each set of batteries separately and use them in series. In the discharge test, the fastest battery in the voltage is the poor battery. - Do not mix good batteries with poor batteries. The closer the capacity/internal resistance of the three batteries is, the better. (2 good batteries + 1 bad battery = 3 poor battery use effect) Application: Massager battery pack, LED light backup power supply, 12V electronic products, solar street light battery pack, monitoring standby power supply, and other products. Feature: Basic project Specification Unit Remarks Current Continuous discharge current 25 A Instantaneous discharge current 75 A Charging Charging voltage Lithium battery charger 12. 6V V Switching power supply 13-16V Recharging current 25 (max) A Overcharge protection Overcharge detection voltage 4.28 0.05 V Single core Overcharge protection delay 0.5 S Overcharge release voltage 4.08 0.05 V Single core Electricity balanceB Balance detection voltage 4. 2 soil 0.05 V Balance release voltage 4.20.05 V Balance current 45 mA Over discharge protection Over-discharge detection voltage 2. 55 0.08 V Over-discharge detection delay 0.1 s Over discharge release voltage 2.90. 1 V Overcurrent protection Overcurrent detection voltage 150 mV Overcurrent detection delay 10 mS Overcurrent protection current 755 A Overcurrent protection release condition Disconnect load Short circuit protection Short circuit protection condition External load short circuit Short circuit detection delay 250 uS Short circuit protection release condition Disconnect load Temperature protection Temperature protection / C External temperature switch Internal resistance Main circuit conduction internal resistance