So what does this mean for those of us who have a battery backup system, no PV, and are keeping our systems maintained on backup standby at 100% SOC? ...

@DougL Which charging control method are you using on the 18K? SOC control or Volt control? I have found that when using SOC control the 18K will ...

@95g-atl Did the battery never take a charge at all? What was the resting battery voltage after leaving it on the charger overnight? What was the ba...

@dougl FWIW, when looking at the BMS data or changing settings on an EG4 battery, you have to take the battery offline communications-wise. The bat...

@dougl The BMS Limit Charge value changes dynamically (at least it does with the EG4 BMS). You could look at the data history and see what the valu...

@dougl Which BMS setting did you change? And what is the "BMS Limit Charge" value reported by the 18K?

@dougl Yes, I understand all of that, and BMS SOC-calculation drift might have been the intended meaning of @signaturesolarjess ' statement, but us...

Can you please explain this statement? Perhaps provide some data or a reference citation. You are describing the primary problem with Ni-Cad chemistry...

@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...