I have a working BMV/MPPT system with 2x Trojan 105T 6V batteries. the BMV is set up to monitor the midpoint on the second battery and it has always been around 0-1% deviation. my problem started when I installed the new Smart Battery protect. when I put it in place with the black thin wire to battery bank NEG and on the + Positive side of the battery bank (the - NEG side has the BMV Shunt already) and hooked it up to the + Positive side of the battery and on the IN terminal and the OUT terminal to the RV load I thought everything was working. I got into the Bluetooth and configured it and could see the battery voltage and relay status. THEN my BMV starts beeping. its reporting a midpoint deviation of 99.8%... I grab my voltmeter and the batteries are at 6.9 and 6.8 volts.
Where is the 99% deviation coming from? even weirder I removed the new SBP install and the BMV still shows the same deviation.
One more data point. when I change the midpoint to "starter battery" it shows 0.3v. both BMV red cables fuses are good and upgraded.
Any Ideas?