I own a powerbank with the later MCK display and have recently notice the solar intake is much lower than I’d expect. Lately the intake has ranged well below 1 kWh per day, whereas in summer I was yielding 3+ kWh per day consistently.
Over the last few days I have noticed 0 kw solar intake on the MCK despite full sun and no cloud or shade coverage so I performed a full reset of the system which triggered a slight change to 0.06 kw solar intake. The solar yield showing on the inverter indicated 0 kWh for the first day, 0.4 kWh for the 2nd day after the reset and now today again it is showing 0 kw solar intake on the MCK and 0 kWh yield for today. I cleaned the solar panels this morning and noticed there appears to be some degradation of the panels after approx. 8 months since purchasing.
Can anyone please advise whether there are any additional tests or resets I should perform? Or has anyone else had issues with their solar panels failing?