Mạch bảo vệ pin Li-ion Lithium 18650 BMS Xiyijia 7S 24V 20A

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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
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
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 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 orderi