I've been cycling the 31 pretty hard, 40 to 70 aH removed every night. Twice I allowed the Schumacher help when there was clouds/drizzle all day. It skyrocketed past the high 14's holding 12 to 14 amps until the battery voltage was 16.1v. I have to get a better charging source, this thing is just a bit ridiculous. I'd unplug it and let it restart. it would just go into float and hold 13.2 V as expected. One night I just let is stay at 13.2v while I cycled the AGM, and once again the AGM held 12.4 where the 31 would have dropped to 12.0 in the same usage. The 31 was taking about 5 seconds of .25 amps and then shutting off for about 15 seconds, before .25 amps again were required to hold 13.2v.
The last few nights, I was a little nicer to it, and took no more than 45 A/h from it, and not enthusiastic about voltages held under load.
Dipped today after 15.3v was in effect for 2 hours and taking 1.6 amps.
1.255, 1.260 and 1.270
Turned CC upto 16 volts. 6 initial amps tapered to 4.2 amps, as usual, SG had risen to 1.275 1.275 and 1.285 when the sun got too low to hold 16v about 45 minutes later. No Noticeable water loss
So it was a premature ending eq cycle.
Electrolyte is still clear, no gray particles.
Right now 9 amp hours removed, 7.8amp load, 12.34 volts, which is better than last night.
Battery not like new, but still meeting my needs, and I am going to keep making the SOB work, and work hard, and I'm gonna keep Solar ABSV at 14.9 and float/finish at 15.3v while I cycle it hard every night.