If you were to leave it on long enough which means DAYS it probably would bring the gravity up. That's why wfco does work for some if they are sitting plugged in. When it comes down to running on a generator or solar you want the best charging and least voltage drop possible. 380 watts of solar isn't bad but it all depends on how much energy you consume. Some people will do a morning generator run while making breakfast and using a hair dryer etc and then let the solar do the longer easier amps. Various people will make all sorts of silly comments like oh your solar doesn't work or solar cant work blah blah blah but a generator with good charging equipment is a very effective way to provide the heavy amps that the battery will accept during the first part of the charge. Other than that you need a whole poo load of solar watts to give the 40, 50 or 60 amps that the battery may take early on.
Start eyeballing that roof space for your next upgrades. You can never have too much solar. :)
Batteries = bank account
Use = your overnight consumption
Charging = your income - loads and battery internal resistance and wiring losses
Can your account carry you overnight or through enough time to keep from starting genny or running for shore power?
Can your income meet the daily load + inefficiency + fill the battery?
If not, quit spending so much or earn more. All problems go away when you throw enough fists full of money at them.
Oh yes, the true audit of your account is the hydrometer
