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

Description

24V 20A 7S 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:
Minimum
Typical
Maximum
Unit
Note
Working Voltage
19.6
29.75
V
Circuit normall working range
Quiescent Current
20
50
μA
Single battery voltage 3.6V
Operating Temperature
-20
+70
℃
Normall operating temperature range
Relative Humidity
90%
No condensation
Storage Temperature
-40
+85
℃
Humidity is less than 90%, no condensation
Altitude
4000
M
Charging Voltage
29.75
V
CC-CV
Function
Test Item
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
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
μS
Recovery
/
/
Disconnecting load
Internal Resistance
Discharge Circuit Internal Resistance(mΩ)
Ron1
/
/
20
mR
Self Power Consumption
Working Mode
Icc1
/
20
50
μA
Size: 65*33*7mm / 2.56*1.3*0.27"
Wire Length: 350mm / 13.77"
Package list:
1 * Protection Board
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On Dec-02-20 at 16:23:06 PST, seller added the following information: