I recently added 1000 watts solar to my 4 100 amp Lithium batteries. I am getting a good amount of amps from the mppt controller to the battery bank, but the SOC on the BMV712 only continues to decrease. It’s as if the BMV is not seeing the solar charge coming in. I have the negative wire from the mppt output going directly to the battery side of the BMV shunt along with the negative from the battery bank to the same shunt post. Is this the correct way to connect the mppt? I seen in another post someone suggested that the negative of the mppt needs to be connected to both sides of the shunt, in order for the BMV712 to see what the solar is contributing to the battery charging. Because the SOC is not correct, I use the battery voltage as my guide to what is really the battery charge level. The voltage on both the BMV and the Victron mppt are in sync and read about 13.7-13.8, when the mppt goes into float, so I know I am fully charged. I have followed all of battleborns suggested settings for both the mppt and the BMV712, for my 4 lithium batteries.
