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

Features:
The protection board is for 7 series 18650 li-ion 3.6V/3.7V batteries.
Stable various protective functions for charging and discharging, such as accurate overcharge protection, over-discharge 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:

MinimumTypical MaximumUnitNote
Working Voltage19.629.75VCircuit normall working range
Quiescent Current2050μASingle battery voltage 3.6V
Operating Temperature-20+70℃Normall operating temperature range
Relative Humidity90%No condensation
Storage Temperature-40+85℃Humidity is less than 90%, no condensation
Altitude4000M
Charging Voltage29.75VCC-CV
FunctionTest ItemSymbolTest ConditionMinimumTypicalMaximumUnit
Over Charge ProtectionVoltageVc1At charge off4.2004.2504.300V
Delay TimeTc1/1010001700mS
Relieve VoltageVc2/4.1504.1904.240V
Charging CurrentNormalIoc/20A
Balancing FunctionStart Voltage/4.1504.2004.250V
Balancing Current/2035mA
Over Discharge ProtectionVoltageVd1At discharge off2.7002.8002.900V
Delay TimeTd1/10200500mS
Relieve VoltageVd2/2.9003.0003.100V
Recovery Condition//Disconnecting load
Over Current PortecionOver Current 1 Protection CurrentIoc160100A
Over Current 1 Protection Delay TimeToc120200mS
Discharge Over Current RelievingOver Current Protecion Recovery Condition//Disconnecting load
Discharge CurrentMax. Continuous Discharge CurrentIoc---20A
Short Circuit ProtectionDelay TimeTshort300600μS
Recovery//Disconnecting load
Internal ResistanceDischarge Circuit Internal Resistance(mΩ)Ron1//20mR
Self Power ConsumptionWorking ModeIcc1/2050μASize: 65*33*7mm / 2.56*1.3*0.27"
Wire Length: 350mm / 13.77"

Package list:
1 * Protection Board