5pcs 2S 4A 7.4V Li-Ion Lithium 18650 BMS PCM Battery Protection Board

• 【Troubleshooting!!!】 If the output (P+ P-) is 0. Sometimes it is necessary to reset the board. It needs a 8V-12v (ie. 9v）battery connected to P+ and P- terminals for a few seconds, then the board resets and the output will be correct. You can see the video instructions below: https://bit. ly/3ucacLr

x5pcs 2S Li-ion 18650 Lithium Battery Charger Protection Board 7.4V Overcurrent Overcharge / Overdischarge Protection 4A 2 Series BMS Specifications: 1. Charging voltage:DC 9V CC / CV (MAX:12V) 2. Current Single current consumption (consumption) ≤6uA Maximum sustained discharge current:4A 3. Overcharge protection Overcharge detection voltage:4.29V Accuracy ≤±0.025V Overcharge detection delay time:1s Overcharge recovery voltage:4.05V Accuracy ≤±0.025V 4. Over-discharge protection Over-discharge detection voltage:3V Accuracy ≤±0.1V Over-discharge detection delay time:128ms Over discharge recovery voltage:3.2V Accuracy ≤±0.1V 5. Over-current protection Overcurrent detection voltage:200mV Overcurrent detection current:9.8A Overcurrent delay time:12ms Recovery Status: Auto Recovery 6. Short-circuit protection Detection status:external short circuit Detection delay time:≤ 50us Recovery Status:Auto Recovery 7. Internal resistance:protection circuit:(MOSPET) ≤ 21mΩ 8. Temperature Operating temperature range:-40 ° ~ +80 ° Storage temperature range:-40 ° ~ +125 ° Features: 1.High-precision voltage detection function for each battery; 2.3 overcurrent detection function; 3.Through the MOS tube can control the battery charge and discharge; 4.Wide operating temperature range: -40 ° C ~ +85 ° C; 5.Low current consumption Product size: about 3.50*1.70cm/1.38"*0.67" Packet Contains: 5pcs x 2S 4A 7.4V Li-ion Lithium Battery Charger Protection Board