Aliexpress module has part number YH11066B. Use this module to shut off Sterling Pro Batt Ultra Lithium Lifepo4 Battery to battery charger. BB1260 by sending high signal to BMS2 input. I am using this module to connect to switch port H on the Victron Smart Battery protect. I will program this module switch the Smart Battery protect off if I hit a high voltage disconnect state. The cost is about $2.
P1= Long press rt button for low voltage set or long press left button for high voltage set
P2= Recovery offset voltage eg. If LV was 12.0 if you program this to .4v. It will recover at 12.4.
p3= off is auto recover. On requires you to press the + key if you want to clear the relay alarm
p4= unknow, let me know in the notes
p5= PRESS BOTH KEYS TO ENTER THIS MODE. Invert the relay voltages. 3.3v is usually non error.
p6= Not sure buy may have to do with reading higher voltages.
p7= Voltage correction. DO THIS. Set the voltage to match a trusted volt meter you have.
Where to buy module on AliExpress
Search for these words DC 0-99.9V LED Digital Display Voltmeter meter Voltage Buzzer Alarm Lipo Voltage led Indicator Tester For RC Car Battery Boat.
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