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Power supply voltage: DC4.5-6V (micro USB interface)
Working current: less than 70mA
The discharge voltage: 1.00V-15.00V resolution 0.01V
Termination voltage range: 0.5-11.0V
Supported by current: the maximum 3.000A resolution 0.001A
The maximum measurement error voltage: 1%+0.03V
The maximum measurement error of current: 2%+-0.010A
The maximum battery capacity range: 9999Ah (1Ah=1000mAh) value of the larger through the decimal point shift
switch, when lower than 10Ah shows X.XXX, above 10Ah show for XX.XX, and so on.
Board size: 50mmX34mm
Note: this circuit in order to improve the voltage measurement accuracy, specially designed DC bias,
when the terminal is what all don't pick will display a small voltage, does not affect the actual measurement,
if you are short connected with the input terminal (absolute 0V) will display 0. To understand the principle can consult the superposition theorem in electrical engineering.
Err1: the battery voltage higher than 15V
Err2: the battery voltage is lower than the setting voltage termination
Err3: the battery is unable to withstand the load discharge current resistance is too large or line
Err4: the current is too large (current is more than 3.1A)
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