madness_za

Try disconnecting and reconnecting SA from the settings menu

Please post a pic of your settings page

If you look at OPs SOC graph, it's completely vertical to 100%, which is different compared to yours

Do this one battery at a time, one day at a time so you can get a clear view on the SOC. Will probably take you a bit longer than a week.

I suspect one or more batteries in your bank has a wonky BMS and or Cell. Can you try switching one battery off at a time until the SoC reporting is normal? You'll probably have to adjust the dip switches etc to cater for it

You have two MPPTs so you could have 2 strings of 4

Well use the calcs above and you'll be able to do that

Yup,I currently have 6 on one of the mppts on my Sunsynk

What batteries? What settings on your inverter?

Wouldn't a spreadsheet be easier? Happy to log on a fill in the details

Do you have a Communication cable between the inverter and battery?

7.1Kwh so far despite the gloomy looking clouds

Yeah I'm very happy with mine

Have you looked at these? https://www.inverter-warehouse.co.za/collections/solar-panels-1/products/jinko-solar-panel-tiger-555w-mono-facial

500 for a cable that can be made up in 5 minutes with less than R100 in material. Nah. That's taking the piss and clearly aimed at a different market (USD/EUR)

SA allows you to make inverter setting changes on the SunSynks/Deyes (and the interface is superior to the native interface), which is part of why I chose it. Again, I work in IT. YAML, JSON, Python etc is absolutely the last thing I want to work on when I am at home, off the clock, and I'm willing to pay for the convenience.

I work in IT. For anything at home, I am willing to pay for a solution that works out the box without needing me to fiddle with it in any way, shape or form. I may in future look at HA for automation, but for now, I'm happy

Man, time flies. It seems like just yesterday @Steve87 and his team commissioned my humble backup solution of an MKS4 and Livoltek 5KW Battery. Some thoughts on the MKS4 For most people, this is all you need. An inverter that can accept a modest number of panels and batteries, and operates in "Dumb" Modes like SUB or SBU. No work timers, no CT Coil. I understand QC on the Axperts are hit and miss, but from the anecdotal evidence of other Axpert owners (not the clones), we're all happy that the inverter does what it says on the box. The only real issue I can fault the MKS4 on is how *noisy* it is, ramping up and down depending on input or output loads. The slow steady whine was a comfort, it got to the point that I could guess what load was coming in or going out based on how loud it was Which brings me to.... The Battery. We really went through some pain getting the Livoltek to play nice. It requires a "hearbeat" to stay online, which required some custom software on a pi, but eventually the system was stable. I pulled close to 80% peak loads out of it repeatedly, including one cold winter night during loadshedding when 2 heaters were running and no issue. There were some nuisance trips, but besides the heartbeat above, solid battery. No SOC drop shenanigans. Livoltek support however... that's another story. We needed to update the firmware on my existing battery and an additional one I had purchased, and @Steve87 did not have a fun time with them. I think I won't even bother with any kind of warranty claims with them in future Which brings me to monitoring and aftermarket support Your choice of installer will make all the difference in the world. I have bugged Steve at odd hours on WhatsApp, and he's always been able to assist. This is why I entrusted him with all of the upgrades since, the PV install, and now most recently the replacement of the MKS4 with the Sunsynk and additional battery and panel swap Monitoring: I initially balked at the cost of Solar Assistant. Having had it for a few days now, I'm glad I made the purchase. It. Just. Works. I never want to have to try using WatchPower again, and the SunSynk connect App is just blegh. Completely user un-friendly. My old panels and MKS4 will live on at my parents place. It's perfect for their requirements, and I'll be purchasing an additional SA for remote monitoring.

Complete turnaround today, currently getting 2700w. It's a little surreal to be able to boil a kettle on solar alone and still have some power to charge the battery

2.9kwh from my 3.3 array

I'm getting 200ish at the moment.every little bit helps lol 3300w array, north facing

Thanks for all the hard work @Steve87 I must say I kind of miss the constant hum and revving up and down of the MKS4. The Sunsynk is basically silent and without the indicator LEDs you wouldn't know it's running The Axpert and Old panel array will live on at my parents place as soon as I can organise installation in the bundus of KZN. I can honestly say for most people, going with the cheaper Axpert is probably all you need. I'll probably start a separate thread on my thoughts on how to choose a good inverter if you're just starting out

Have you tried a hard reboot of the entire system?

It would help to know exactly what loads are being supported?

Do you have a 1C battery?