AndrewCal

Any other ideas it could be?

This is on a cloudy day. I only switched it over to solar setting around 12 because it was raining.

https://www.canadiansolar.com/wp-content/uploads/2020/05/Canadian_Solar-Datasheet-KuPower_CS3K-P_EN.pdf

Panels are in series and parallel. Do you think i should do them all in parallel to keep the voltage down?

I tried setting the equalisation schedule. When i tried doing "Real-time active battery equalisation enable" it gave me an error. See pics these spikes are when it switches to utility. Could it be solar fuses or are we leaning more towards hardware failure/software error?

AGM Batteries (6fm100z-x) were bought brand new about a year ago and very rarely do they go below 40% charge. I have an external battery monitor as i know the inverter one is not accurate. That spike was a brief switch over to "utility"

Hi, thank you for the assistance. Please see pics attached

Hi Everyone Please could someone help. I have no idea why my system does this. Please see pic. I have 4x 300 watt solar panels. The MPPT is suppose to do 1000 watt but always on a clear day it will peak to 1000 watt in the morning then drop off to around 600 watt 25amp and just stay there the whole day. Many thanks