PRODUCT INTRODUCTION
The BM21S Smart shunt battery monitor is a high-precision meter that allows you to check the status of your battery via your Smartphone with the smart battery monitor App.
Through the use of a 75A/150A/500A current smart shunt, the battery monitor measures the discharge or recharge currents and calculates the Ampere-hours(Ah) going in and out of the battery.
High-precision voltage measurements are taken and displayed in real-time through the use of a field-installed sense wire. BM21 battery monitor is well-suited for lithium, LiFePO4, Lead-aid and nickel-metal hydride batteries.
DAT DISPLAYED:
- Battery State of Charge (SOC)
- Battery voltage
- Battery Capacity
- Battery Current
- Power Watt
- Temperature
- Cycle Count
APPLICATIONS:
(Suitable for traction/mobile and stationary applications)
- Golf cars and Utility Vehicles
- Floor Cleaning Machines
- AWP
- Marine
- RV
- Solar
- Backup
APP INTERFACE
|
Parameter
|
Min
|
Type
|
Max
|
Unit
|
|
Working voltage
|
8.0
|
80.0
|
V
|
|
|
Working dissipation
|
10.0
|
12.0
|
mA
|
|
|
Standby dissipation
|
0.5
|
0.8
|
mA
|
|
|
Sleep dissipation
|
50.0
|
60.0
|
uA
|
|
|
Capacity accuracy
|
±2.0
|
％
|
||
|
Voltage accuracy
|
±2.0
|
％
|
||
|
Current accuracy
|
±2.0
|
%
|
||
|
Backlight on current
|
40.0
|
50.0
|
mA
|
|
|
Backlight off current
|
30.0
|
40.0
|
mA
|
|
|
Preset capacity value
|
0.1
|
999.0
|
Ah
|
|
|
Current of 75A Sampler
|
0 |
75.0
|
A
|
|
|
Temperature range
|
0
|
20
|
35
|
℃
|
|
Weight
|
70.0
|
g
|
||
|
Size
|
ø59*20 |
mm
|
||
|
Parameter
|
Min
|
Type
|
Max
|
Unit
|
|
Working voltage
|
8.0
|
80.0
|
V
|
|
|
Working dissipation
|
10.0
|
12.0
|
mA
|
|
|
Standby dissipation
|
0.5
|
0.8
|
mA
|
|
|
Sleep dissipation
|
50.0
|
60.0
|
uA
|
|
|
Capacity accuracy
|
±1.0
|
％
|
||
|
Voltage accuracy
|
±1.0
|
％
|
||
|
Current accuracy
|
±1.0
|
%
|
||
|
Backlight on current
|
40.0
|
50.0
|
mA
|
|
|
Backlight off current
|
30.0
|
40.0
|
mA
|
|
|
Capacity setting value
|
0.1
|
590
|
Ah
|
|
|
Sampler working current
|
150.0
|
A
|
||
|
Temperature range
|
0
|
20
|
35
|
℃
|
|
Weight
|
135.0
|
g
|
||
|
Size
|
ø59*20 |
mm
|
||
|
Parameter
|
Min
|
Type
|
Max
|
Unit
|
|
Working voltage
|
8.0
|
80.0
|
V
|
|
|
Working dissipation
|
10.0
|
12.0
|
mA
|
|
|
Standby dissipation
|
0.5
|
0.8
|
mA
|
|
|
Sleep dissipation
|
50.0
|
60.0
|
uA
|
|
|
Capacity accuracy
|
±1.0
|
％
|
||
|
Voltage accuracy
|
±1.0
|
％
|
||
|
Current accuracy
|
±1.0
|
%
|
||
|
Backlight on current
|
40.0
|
50.0
|
mA
|
|
|
Backlight off current
|
30.0
|
40.0
|
mA
|
|
|
Capacity setting value
|
0.1
|
999
|
Ah
|
|
|
Sampler working current
|
50.0
|
500.0
|
A
|
|
|
Temperature range
|
0
|
20
|
35
|
℃
|
|
Weight
|
65.0
|
g
|
||
|
Size
|
ø59*20 |
mm
|
||
