How to control spike when sun reappears from cloud

[Ian R]

Hi all first post here and not sure if posted in correct because couldent see any recent postings on this
ok I just have small 12v system in a caravan---- 30amp EPEVER mppt with MT50 display, 200w single panel, Giantz 1000-2000w inverter, multiple breakers so I can turn off inverter or pv power for maintenance or changing settings and for safety, mppt load of led light only and system only set up for use of minimal watt usage like 60w TV and a 30w cooler. Using single 12v battery, works beautifully until a cloud comes along and sun comes back causing a over voltage alert and over battery voltage alert and have to shut it down completely and restart .
I have since brought the EPEVER only found out about this bug of slow to respond from the mppt and looking to see if there is anything I can do before I buy a Victron mppt due to the better algorithm program and controlling the spike better
cant seem to load picture of set up,keeps saying error
just add full sun and works all day long,,as soon as cloud come and go that triggers over voltage from the mppt bein to slow to react
how does a picture have a url , are pictures not allowed? Sure made the fun so gave up on that and think I'm in the wrong place for this,my pictures dont have a URL so no pictures to help,whys that part so hard ,if I cant add picture I can't show my settings


can delete this I'll sort it

[sdold]

Hi Ian, let me try something here...

[sdold]

it looks like pictures need to be under a certain size to post. I'm not sure how large is allowed, but try reducing the size of your images. I remember this coming up before.

[Ian R]

20250115_094236.jpg 20250114_161134.jpg

ok well that was a mission lol and had to log in everytime I left to edit a picture again , made words bigger so I can see
this is my 12v set up and panel specs and MT50 settings programmed into mppt
left side of MT50 settings are stock which are way to high for a single battery/ user settings in pen is what I have set now and works flawless from 8.30am till 5pm if there is no cloud,,when cloud comes as normal the voltage drops but holds steady about 14 to 16volts and sun comes out from cloud and the warnings start ,battery over voltage and I shut off the pv breaker immediately before any breakers pop(3x20amp breakers)up top+ the pv shut off up top seperate from the system
when I first set this up I had a cheap Chinese 3000w inverter that blew up after a spike but no breakers tripped out so lucky I was here watching it and that was with the stock 12v EPEVER settings before I learnt to change settings
seems a bit silly to only use system now if there's a couple of clouds about because the mppt will not stop at preset levels
charging limit is at 13.5v which is no problem and over voltage disconnect is at 14.v now but still goes past that where as it shouldn't so what foes one to to control these spikes, been told to get victron or powmr as their algorithm is better at catching the spike faster, is that correct, I'm still a rookie learning so unsure what to do
thanks in advance for any info on what others do in this situation
thanks
Ian

[sdold]

It worked! The image looks great and clicking on it brings up a larger size.

[SunEagle]

To Ian R your post with picture is now approved

[Ian R]

To Ian R your post with picture is now approved

Hi and thanks. I did delete the picture since I added it to the other pictures successfully, I couldent get it to i load yesterday which is why I posted it seperate today