Product Description
Features:
1 Photoelectric isolation can effectively protect the circuit board.
2 1% high-precision divider resistors make the measurement voltage more accurate.
3 Voltage accuracy and resolution is 0.1V, and with a calibration function.
4 Reduce the brightness of the digital display, save energy and protect your eyes.
5 parameter power-down save, to avoid duplicate settings.
6 Set the Start Discharge Voltage(H) and Cutoff Discharge Voltage(L) to the lowest (<6V), which can be used as a voltmeter to measure 6-30V voltage.
7 It has Energy-Saving Mode and restore Factory-Settings.
Product Specifications:
Operating voltage: DC 6-30V.
Operating current (12V): Standard mode, standby current 7MA; Working current 11MA;
Energy-Saving mode,Standby current 4MA; Working current 7MA.
3 control buttons, 4 bit digital display, 1 LED charge indicator.
Mode: Standard-Mode, Energy-Saving Mode, Setup-Mode, Voltage-Calibration, Factory-Settings.
Can protect any 6-30V battery discharge, double N-MOS maximum load current: 15A (6-15V); 10A (15-30V) .
The default Cutoff discharge voltage 11.8V, Start discharge voltage is 12.2V(for 12V lead acid battery).
Size: 60 x 35x 16mm
Weight : 19g
Applications:
Car battery discharge protection
Solar battery discharge protection
Mobile Loadspeaker
Lead-Acid Battery discharge protection
Electric Bicycle discharge protection
UPS Uninterruptible power supply
Portable Industrial and Medical Equipment
Standalone Battery Uninterruptible power supply
Lead-acid /Ni-Cd / Ni-MH / Li-ION /Li-PO /LiFe/PolymerLithium battery
For more details, please see below description or contact us for instructions
The module supports any 6-30V battery discharge protection, such as:
1 Lead-acid battery: 6V 12V 24V (6-30V can be)
2 Li-ion / li-po / LiFe/polymer lithium battery : 7.4V 11.1V 14.8V 18.5V 22.2V 25.9V(2-7Cells)
3 Lithium iron phosphate batterys(LiFePO4 battery):6.4V 9.6V 12.8V 16V 19.2V 22.4V 25.6V(2-8Cells)
4 NiMH batteries : 6V 7.2V 8.4V 9.6V 10.8V 12V 13.2V ... 28.8V(5-24Cells)
5 Any other battery with a voltage range of 6-30V

Standard-Mode:
After connecting the battery, enter the Standard Mode (default), and display the current battery voltage(Current Voltage)
Energy-Saving mode:
In standard mode, press and hold the ''SET'' button to enter the Energy-Saving Mode. After power on again, it will still enter the Energy-Saving Mode. In the Energy-Saving Mode, the digital tube is not displayed, and other functions work normally. In the Energy-Saving mode, press and hold the ''SET'' button, exit the Energy-Saving Mode, and enter the Standard Mode.
Setup-Mode (see Operation Steps for details):
Set the Start-Discharge-Voltage (High voltage):
In the Standard-Mode, press and hold the ''INC'' button (or trigger the ''SET'' button after triggering the ''INC'' button) to enter the Start-Discharge-Voltage Setup-Mode.
Set the Cutoff-Discharge-Voltage (Low voltage):
In the Standard-Mode, press and hold the ''DEC'' button (or trigger the ''SET'' button after triggering the ''DEC'' button) to enter the Cutoff-Discharge-Voltage Setup-Mode.
In the Setup-Mode ,triggering the ''INC'' button increases the voltage and triggers the ''DEC'' button to decrease the voltage. Long press ''INC'' or ''DEC'' button to quickly set the voltage.
Voltage-Calibration:
Press and hold the ''SET'' button first, and then power on again to enter the Voltage-Calibration mode(Note: press the button ->power on).
For example, the power supply voltage is 12.00V and the module display voltage is 12.34V. At this time, calibration is required.
1.Press and hold the ''SET'' button first, and then power on (be sure to press the button first, and then power on), then the digital tube displays 12.34V;
2.Trigger ''DEC'' or ''INC'' button, let the digital tube display 12.00V
3.Trigger the ''SET'' button again to save the parameters. (If you do not want to save the parameters, please power off)
Factory-Settings:
In the Standard-Mode, press and hold the ''SET'' and ''INC'' buttons at the same time, until the digital display shows''8888'', at this time, restore the factory settings, Cutoff-Discharge-Voltage is 11.8V, Start-Discharge-Voltage is 12.8V. (Note: voltage calibration parameters cannot be reset to factory settings)