Originally Posted by Opie91
I am pretty sure the consensus here is the meters supplied with solar
controllers are more of a indication of trend rather than actual output.
Most show more gain from the MPPT
process than is really occurring if you measure it with a calibrated meter.
However even if the calibration is incorrect it will show when the panel output is low perhaps because the panels
are dirty, or there is a shadow (that might be removable)
Besides most cruisers love seeing a quantification of all that free silent power going in