Victron also has some kind of current level, does the mppt switch off in low light?
I’ve been following this for educational purposes. While I have experienced the “high-voltage cutout bug” with several different Epever units I have not seen any low-light issues with them any differently than not enough light.
And I say this being that here in my locale of Vermont we have a lot of cloudy days due to the jet stream, “lake effect” and other moisture from essentially hundreds of miles west and southwest, and the pressure drop over the green mountain spine. Whether my first year Windy Nation pwm, a variety of Epevers 30A to 60A, an MPP SCC, and a cheapo powMR 60A mppt; they all shrink to 5%-20% of potential in low light from clouds. In good sun, early and late in the day still are quite low to nearly ineffective until the sun angle comes about in the morning, and drop rapidly nearing sunset.
Victron is good stuff and though I haven’t bought any (yet?) I read the comparisons with a grain of salt- there is no magic pill in Victron other than quality and durability. The ancillary robust monitoring, accessories, etc., should be available from such a premium brand as Victron. And they are.
I extend the grain of salt to Epever complaints, too. You can make ‘tight’ settings (very close together limit settings) and create a number of switching and charge issues quite easily, but other than the full-sun higher state of charge voltage spike ‘bug’ (high voltage cutout bug) that apparently has been solved I somehow managed to attain or exceed expected/calculated output goals from them.
With the tens of thousands of people successfully using Epever offgrid I have difficulty swallowing that they are inherently junk. Many of the Epever complaint stream fall into the same symptoms which I experienced when a faulty batch of MC4s had me spinning in circles with what turned out to be siphoning of water into the connectors with temperature cycles. Once I replaced them all I have not had those issues again. And on the bright side (with some guidance from this forum) I went through extreme testing of voltage drop through connections with calculations down to milliohms proving where the issues originated. Pleasing to verify my work was sound.
You won’t be unhappy with Victron. However, don’t think of it as a magic pill. The human element plays a large part in many people’s equipment ‘failure’ experience.
