question

If you look at 4.2.2 it becomes clearer. Charger mode adds 14 and 15. Guessing you have something in the temperature settings, 26-29 which is causing the combined effect. I assume you have the correct temp sensor wired to the battery positive.

Have you tried 11~default and setting 16, 17~SOC at your soc targets?

11~CHRG adds in voltage targets on top of the soc targets.

12~invert relay might have to be flipped.

Thanks Kevgermany for replying quickly.

Yes, I have a Victron temperature sensor connected to the battery and shunt with temperature settings to stop below-freezing temperature charging. However, I wanted to use the BMV-712 Relay to turn off electronics only with respect to battery voltage, but I see a combined effect for both SoC and Temp settings. I'm assuming from your post that the BMV relay will always look at temperature settings in either Default or Charger Mode.

I don't see section 4.2.2 in the "Manual - BMV-712 Smart" as you mention. I'm looking at the BMV manual Rev 10 - 12/2022. Has the reference to 4.2.2 for the BMV-712 you mention moved/been changed?

Also, do you know of a work around in the settings, or do I need to abandon my use of this relay?

klim8skeptic I have tested the State of Charge (SoC) limits/voltage once, and it worked as planned. However, I wanted the BMV Relay to function only on SoC and NOT on temperature, but still let the BMV-712 tell the charge controller (not connected to the Relay) to stop charging with respect to temperature limits I set. I wanted a relay that only looked at SOC/voltage.

I'm assuming this is not what the BMV relay is designed to do/maybe it's a feature I need to request.