@95g-atl I don't think the battery charger is bad. 43.8 V is exactly what the charging voltage should be. But, you should only be able to measure t...

@joel-brodeur we're crossing posts again. You beat me this time...

@95g-atl So, at 10amps it will take around 10 hours to fully charge this battery. Do you have the manual that came with the charger? Here is an exc...

@95g-atl The charger model and specs will be important. For instance, if it is a 20 amp charger it's going to take about 5 hours to charge this bat...

@95g-atl What are you using to charge the battery? How quick is "quickly charges to about 38.4 volts"? Note that 38.4V is a nearly dead battery (ab...

According to the specifications, the inverter can pass through 100A from the grid, or 24kW. According to this illustration from the product manual p...

@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...