20S 40A 72V BMS Battery Management System Li-ion Cell Battery ANN Balanced

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Item specifics
  • Brand Name:ANNBATTERY
  • Battery Number:This order is not including battery
  • Set Type:Batteries Only
  • Model Number:20S 72-74V BMS
  • Replacement Battery:Yes
  • Bundle:Bundle 1
  • Type:Li-Ion
  • Nominal Capacity: 40A
  • Size:110*85*15mm
Product Description

74V lithium battery BMS, 3.7V cell 20S li-ion battery BMS, 72-74V 40A BMS, For 74V 20Ah, 74V 30Ah, 74V 40Ah, 74V 50Ah, 74V 80Ah, 100Ah lithium ion battery pack. With balance function.

Features

1. It is suitable for 20S 74V lithium ion battery pack.

2. With functions of protection from voltage, current detection, balance function, including over-current, overvoltage, under-voltage and short circuit protection.

3. This BMS has applied with high quality IC chip specially for lithium battery protection purpose .highly detection
precision degree on over-charge,over-discharge,voltage balancing ,and with detection on wires disconnection functions,
with three layers of over-discharge and over-current detections and delay times in detecting process.( Over-current 1,
over current 2,short circuit protection ),with charging protection functions at the charging port so as to avoid reverse 

connection problem from the charger . short-circuit of charging port ,with two layers protection against over-voltage
when charging :This is The BMS for 20 series 74V(84v)  lithium ion  battery pack with  40Aconstant discharge current  

and 15A charging current

The charge and discharge port is different.

Electrical Characteristic (Ta=25 ºC)

No.

Test Item

Min.

Typ.

Max

Unit

1

Input Charging Voltage

83.4

84

84.6

V

2

Input Charging Current

 

15

 

A

3

Output Discharging Current

 

40A/50A/60A

 

A

4

Over-Current Discharging Protection

130

150

170

A

5

Current Consumption

10

15

25

uA

6

Balance Current

40

45

50

mA

7

Balance Voltage

4.16

4.18

4.2

V

8

Over-Charge Protection Voltage

4.21

4.25

4.3

V

9

Over-Charge Protection Voltage Release

4.0

4.15

4.2

V

10

Over-Charge Protection Voltage Delay Time

1.0

1.5

2.0

S

11

Over-Discharge Protection Voltage

2.42

2.5

2.58

V

12

Over-Discharge Protection Voltage Release

2.9

3.0

3.1

V

13

Over-Discharge Protection Voltage Delay Time

1.0

1.5

2.0

S

14

Short Circuit Protection Release

Remove the load

15

Impedance

 

8

15

16

Operating Temperature

-15

+25

+45

ºC

17

Storage Temperature

-20

+25

+30

ºC

 

 

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