Hi
This week I am going to install 4 solar panels. They are AIKO 485Wp Gen3 black. I have temporarily connected one panel. The stated voltage is 34.5V but I have already seen it go over 40V. My MPPT controller Victron 150/85 24 volt 720Ah Lifepo4 battery.
4 panels in series could reach a maximum of 160V 10 volts above the maximum.
Does anyone have experience with this?
Lex NL
The model is 150/85.
Thr max it should ever ‘see’ is 150voc at min temps. Ideally with a margin for cloud edge effect.
160v it will blow… Maybe not on the first event but it will.
Run your configs through the mppt calculator.
Thank you for your answer .
Is the Victron MPPT not protected against overvoltage?
Otherwise, I have to make 2 sets of 2 panels.
Lex .Nl
The MPPT technical specs and in the datsheet say it is rated for 150v max.
Don’t exceed that.
As I mentioned you may {or may not} ‘get away with it’ once or twice but the fact is it is being operated outside of manufacturer clearly stated and recommended limits. Usually this would mean you have voided your warranty.
A properly configured Panel array on any piece of solar equipment with any manufacturer would operate in all conditions in the correct limits. There are electrical limits to components.
In any case a 2s 2p would work for your array so its not impossible for the set up to be adjusted.
Means nothing if I do not know where you are in the world.
Operation conditions matter. Or even what battery voltage you have.
Use the mppt calculator and make sure the details are correct. I have entered your panels to get you started.
.NL Nederlands
Victron MPPT 150/85 24 volt
24v 720Ah Lifepo4 battery.
I go make 2 sets of 2 panels. 80v that better no risk.
Thank you very much.