WannabeSolarSparky

You calling us old?! 🤣

sounds like the cuplrit 99% sunsynk/deye issues are incorrect ct installation and or settings MY Opinion

yip, that heat is lost watts I have only leds in whole house now, all lights on 24/7 coz they use so little power

Be careful, cloud edge sun may push you over voltage limits and release the magic smoke. 428v is already close to the max safe recommended 450v.

It does not matter what the cells are, the only thing is to use the same voltage and number of cells. As far as I know all the sunsynk batteries are 16 cell models so any one will work as extra batteries to expand your bank. The AH or kWh capacity does not matter you can have any size mixed and matched as long as they are ALL the same voltage and number of cells.

Deye and sunsynk inverters usually always require the CT coil (correctly Installed) for them to function correctly. It is mentioned in the install guide. Some of the comments above did question the correct installation of the CT coil.

You can view the expected irradiance levels here: https://en.tutiempo.net/solar-radiation/cape-town.html You can use that and then calculate to your panels to find the closest to forecast real world expectations.

Nice conservative settings, those batteries should behave and last a long time

Did you try the 3 SA suppliers that all have stock in SA? Negates all the import hassles. https://www.docanpower.com/index.php?route=product/search&search=za stock&description=true https://lithium-cells.co.za/shop And apexium, somewhere here on the forum is their contact info.

They are on clearance that's why they so cheap, that model is no longer manufactured so they trying to move the stock. Very good inverter, but honestly the newer s6 model is way better aND FOR ONLY A FEW BUCKS EXTRA

is the ct coil connected?

Those 300 to 500 volt dc solar arrays, be careful out there. Many electricians are not too good with DC systems.

AC vs. DC Fuses Circuit Breakers

Many people do not realise that DC can a very dangerous beast when the circumstances are right. Those DC arcs can be very persistent if they are not extinguished effectively by the correct type of fusing or breakers.

That is almost at a price point to make it worthwhile to install And with the dropping solar panel prices even more so

Just be sure you are not backfeeding to the grid as some meters will record that as purchasing power or go into tamper mode and cut you off.

My understanding is that this is the reason why the regulations/code insist/require visual indicators (lights/labels) to show grid or generator/pv active or not. So this effectively allows for the same colour coding to be used regardless of the supply source.

That is ok, if your BMS has a balance start voltage of 3.45 then 3.5 on the invert/charger settings will be good even 3.46 should work and that should bring your battery up to about 98% capacity once fully absorbed and if you have a decent BMS then it should set the SOC to 100% once fully absorbed and balanced.

3.5 may be a bit low for the balancer to operate correctly and bring the cells up to fully absorbed and balanced state. Since that is 15 cell battery you may want to set your charge voltage to minimum 3.60 \ 54V Or if you know the balance START voltage then set it slightly higher than that. If your inverter allows then set the charge absorb and balance all to 54V. And then set your inverter to not use the battery for a few days to allow the battery to correct itself with a proper charge and absorb and balance. Usually 4 or 5 days should do the trick depending on how the BMS settings are done.

Sounds like you need to do a good top balance and full absorb on the battery to bring the capacity back in line with the SOC reading.

not everyone knows how to put the mm (²) bit 🙃

Are you sure about that? It does not look the same or have the same user interface (the solis does not have the graphic display). Also it's not certified by the same authority, which would be strange if it's the same device because that would be an unnecessary expense. AFAIK, Solis makes their own inverters, they don't rebadge, or at least they are the OEM, others rebrand their inverters? I think Steve may be more leaning/referring to the form factor and functionality when he made that statement As for support, I agree with Steve 110% on that, way better than any other brand currently available in SA.

@QuinnTema it is as simple as the diagram @system32 posted. I received mine 2 months ago and it was very simple to complete. Its like entering 3 recharges one after the other. Be sure to do it in the order they gave it to you then you will have no issues

@CJE get a jkbms https://lithium-cells.co.za/detail/429367

Go check Andy's youtube channel he is busy testing sodium batteries https://www.youtube.com/@OffGridGarageAustralia/videos