I've got a SmartSolar 100 | 50 MPPT, and a Bogart Engineering Trimetric battery monitor.
I'm noticing there's a notable difference with the amps the SmartSolar says it is putting out to the battery, vs what the Bogart says is coming in. With all output loads isolated, the SmartSolar seems to over read by 5% ie 5% higher than the value read on the Trimetric.
The Trimetric measures using a precision shunt, with sense wires routed well away from any load lines. It's been checked with two independent instruments and I'm confident of its accuracy.
Is this level of error acceptable in Victron units? Because it's effectively ruining any use of the historical data from the SmartSolar unit, and I have concerns about its implications if I decide to switch the Trimetric with a BMV unit.