Description
51.8V lithium ion battery protective circuit, 14S 51.8V 20A BMS, with the balance function, Free balanced cable.
Feature
1. It is suitable for 14S 51.8V lithium ion battery pack.
2. With functions of protection from voltage, current detection, including over-current, overvoltage, under-voltage and short circuit protection, voltage balance function.
3. This BMS was build with high end electronic components (High End Integrated IC chip and MOSFET ) ,It has highly precision on detection on voltage and current .stable working performance in extremely condition.
Electrical Characteristic (Ta=25 ºC)
|
No. |
Test Item |
Min. |
Typ. |
Max |
Unit |
|
1 |
Input Charging Voltage |
58.6 |
58.8 |
59.0 |
V |
|
2 |
Input Charging Current |
|
8 |
|
A |
|
3 |
Output Discharging Current |
|
20 |
|
A |
|
4 |
Over-Current Discharging Protection |
55 |
60 |
65 |
A |
|
5 |
Current Consumption |
10 |
15 |
25 |
uA |
|
6 |
Balance Current |
45 |
50 |
55 |
mA |
|
7 |
Balance Voltage |
4.16 |
4.18 |
4.20 |
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 |
Wiring instructions:
power cable
B-:Connect to battery negative (Black cable 14AWG L=150±5mm)
P-:Connect to negative of discharge port (Blue cable 14AWG L=150±5mm)
C-:Connect to negative of charge port (yellow cable 18AWG L=150±5mm)
Voltage monitoring cable
cable type:UL1007 22AWG L=300±5mm
B-(Black),B14+(Red)
B-(GND)/B1/B2/B3/B4/B5/B6/B7/B8/B9/B10/B11/B12/B13/B14 (B+)
Remarks:
Please connect B- line firstly, and then connect voltage monitoring wiring harness. The last step is to connect charge and discharge lines. If you want to remove them, the order should be reversed. Please pay attention to the connection order, or it will damage the component.
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