Rogue MPPT, 490W and charging mysteries
Now that we were finally all in one place - me, Rogue 3048 and my rig - it was time to have some fun. 1)Battery: old starter, tested beyond dead, plates above the water. No wonder, 8 months in Mex...
Forum Discussion
pianotuna wrote:
Hi BFL13,
The meters read high when there is voltage drop? That seems counter intuitive to me. Or have you "tweaked" them to show the "real" battery voltage at a distance?BFL13 wrote:
Both my Trimetric and another voltmeter I use some distance from the batteries read a bit high. AFAIK it is due to voltage drop on the long wires between the meters and the batteries they go to.
Perhaps I have that all wrong? The example they give in the ASC solar controller manual for voltage drop (they want under 1/4 volt between battery and controller so the battery will not be undercharged by the controller thinking the battery has reached high set-point voltage when it has not yet reached that)
Battery terminals- 13.65v
ASC battery connection- 13.95v -- 0.30v diff too large. Decrease voltage drop
