74V lithium battery BMS, 3.7V cell 20S li-ion battery BMS, 72-74V 40A/50A/60A BMS
Feature
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 40A/50A/60A constant 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 |
mΩ |
|
16 |
Operating Temperature |
-15 |
+25 |
+45 |
ºC |
|
17 |
Storage Temperature |
-20 |
+25 |
+30 |
ºC |