24V 20A 7S Lithium Li ion 18650 Battery BMS Protection Board with Balancing

About this item

• Features: The protection board is for 7 series 18650 liion 3.6V3.7V batteries. Stable various protective functions for charging and discharging, such as accurate overcharge protection, overdischarge protection, over current protection and short circuit protection. Batteries core hardware balanced processing, proper balanced current, reasonable balanced heat emitting, does not affect performance of battery pack. It has aluminum sheet that would enhance heat dissipation for MOS tube, and extend the service life of MOS tube. Low quiescent power consumption, it can save energy. Specification: Minimum Typical Maximum Unit Note Working Voltage 19.6 29.75 V Circuit normall working range Quiescent Current 20 50 microamps Single battery voltage 3.6V Operating Temperature 20 +70 celsius Normall operating temperature range Relative Humidity 90percent No condensation Storage Temperature 40 +85 celsius Humidity is less than 90percent , no condensation Altitude 4000 M Charging Voltage 29.75 V CCCV Function Test Item Symbol Test Condition Minimum Typical Maximum Unit Over Charge Protection Voltage Vc1 At charge off 4.200 4.250 4.300 V Delay Time Tc1 10 1000 1700 mS Relieve Voltage Vc2 4.150 4.190 4.240 V Charging Current Normal Ioc 20 A Balancing Function Start Voltage 4.150 4.200 4.250 V Balancing Current 20 35 mA Over Discharge Protection Voltage Vd1 At discharge off 2.700 2.800 2.900 V Delay Time Td1 10 200 500 mS Relieve Voltage Vd2 2.900 3.000 3.100 V Recovery Condition Disconnecting load Over Current Portecion Over Current 1 Protection Current Ioc1 60 100 A Over Current 1 Protection Delay Time Toc1 20 200 mS Discharge Over Current Relieving Over Current Protecion Recovery Condition Disconnecting load Discharge Current Max. Continuous Discharge Current Ioc 20 A Short Circuit Protection Delay Time Tshort 300 600 Microsecond Recovery Disconnecting load Internal Resistance Discharge Circuit Internal Resistance(m Ohm ) Ron1 20 mR Self Power Consumption Working Mode Icc1 20 50 microamps Size: 65*33*7mm 2.56*1.3*0.27 Wire Length: 350mm 13.77 Package list: 1 x Protection Board Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. .The protection board is for 7 series 18650 liion 3.6V3.7V batteries. Stable various protective functions for charging and discharging, such as accurate overcharge protection, overdischarge protection, over current protection and short circuit protection Batteries core hardware balanced processing, proper balanced current, reasonable balanced heat emitting, does not affect performance of battery pack It has aluminum sheet that would enhance heat dissipation for MOS tube, and extend the service life of MOS tube Low quiescent power consumption, it can save energy.