the trend of my MPPT 100/20 shows every 10 minutes a drop in power (A) and a simultaneous increase in the voltage of the panels all this for a few seconds and then everything returns to normal.
My system is on a sailing boat and consists of 4 panels of 100W in parallel
This has been asked and answered many times, this is the 10 minute cycle where the MPPT sweeps the voltage range to determine the maximum power point.
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