Hi Groscout,
I am also looking for help in configuring these same settings on my Growatt 48v 3000TL.
Good evening Swannie, I'm curious what the manufacturer of your batteries specify for equalization charge voltage and duration. Although duration is usually determined by specific gravity. The reason i say this is because 58.4v, 14.6v per battery is no where close to whats needed to equalize my batteries: 15.5-16v is.
Changing the Growatt settings to auto "equalize" charge is pretty straight forward. Page 22 of the above mentioned user manual explains how to set it up using setting 43-48.
"43 Battery equalization, Battery equalization enable, Battery equalization disable(default)
44 Battery equalization voltage Default 58.4V, 48.0V~58.4V Settable
45 Battery equalized time Default 60min, 5min~900min Settable
46 Battery equalized timeout Default 120min, 5min~900min Settable
47 Equalization interval Default 30days, 1 days~90 days Settable
48 Equalization activated immediately"
My understanding is the FLA batteries require equalization charging each month, and this setting lets you do that.
My first post was a bit rhetorical and poorly formulated question about the maximum balance charging voltage of the Growatt in question. '58.4v or 14.6v per 12v battery' being too low to actually balance. From what little information i could gather online and on the forum, equalization charging won't occur at that voltage rather it will "refresh" the battery.
Since my first post, the bench charger for my future LFP build showed up which allowed me to equalize charge each battery to 16v until the specific gravity stoped rising. This was done the day after I did a "refresh" with the Growatt. After an equalization charge my useable amp hours went from somewhere around 36-38 to 70, 11 short of new.