Bucking and MPPT?
Question here is whether I saw where the effect of MPPT was seen or not---was the amount of change about right? Situation was controller (Eco-Worthy 20amper) was showing 14.4v (as set by me for Flo...
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red31 wrote:
If it's bucking in float the panel output is higher than the battery, what allows this tracking of voltage higher than battery voltage? ie how can it buck without tracking?
The story is that when it is not in MPPT (which it only does in "Bulk") it is in PWM in "Absorb" and in "Float" Other brand MPPT controllers do the same.
I am not asking whether that is true or whether it was in MPPT or not, just whether the "improvement" was about right for proper MPP tracking similar to what any other MPPT controller does.
I don't know what exactly the array vs battery was at the time, but testing that day with similar numbers in Bulk were with the panel rated Voc 36.8, Isc 8.3 at actual Voc 34, Isc 8.4 with battery 13v, amps 14, watts showing as 182ish. (Question there was why the lower than usual amps and watts--see thread Heat1 Mppt0)
