I have a bluetooth smart dongle connected to a MultiplusII inverter. It is reporting about .5-.6 volts higher than actual battery voltage. I have confirmed with multiple meters (that are used daily and correct), it is not a voltage loss or connection issue. I have spoken to battleborn batteries (who i purchased through), they said they and victron are both aware of this issue on a batch of the dongles and that a firmware issue would be released to fix the issue. That was months ago and still no update or fix that i am aware of. Anyone have any information?