@tristan That 48V chart gives voltages for a 16 cell (51.2V nominal) system.

@tristan I like this chart. It seems the closest I can find to my system's behavior.

Many people ignore the SOC percentages and use voltages instead, to trust what their battery state is. If charging or discharging current is small, th...

BTW, I don't have the wallmount batteries. I have an 18Kpv and six LL-S rack batteries. I've read here that both the LL-S and the wallmount should be ...

@weertske The CAN port is what I'm using. The RS485 connection didn't work for me. Maybe post some photos of each battery in the morning, cable conn...

@weertske On the inverter, the battery brand should be set to 1 for the wallmount, not 0. You have battery comm cables connecting the second and t...

@brdfrd I agree you probably don’t have a connection problem unless there’s a bad crimp somewhere. If you check for this, don’t forget the trick of...

laurjam mentioned the possibility of using a Chargeverter to mitigate the noise.

@laurjam To make sure you're not making the wrong assumption, the Chargeverter has a cooling fan and it's fairly loud too. Mine is only intended fo...

@brdfrd @joel-brodeur You guys are thinking about this backwards. Instead of brdfrd having one battery that’s “outta whack”, in his low-discharge ...

Yes, that’s correct. If you start with a fully charged system, all reporting 100%, and then give it a constant 200 watt discharge load, I predict you ...

Short answer is No. Longer answer is it depends on what you mean by "internet down." If you mean the internet infrastructure at your installation si...

@fatanu I attach here an older version of the 18Kpv manual which includes a section for all the inverter settings. They seem to have removed that se...

That seems to be the general error code for attempting to change any setting to a value that's out of range or not allowed. I would guess you have som...

Our house is mostly LED lighting, and I've never noticed this. FWIW, this unit is still on firmware FAAB-1C1C.