Jon, I have read the inverter instructions a couple times in the last few days, including the Equalization charge setting. I do plan to read the manual with the new inverter and hopefully set things the way they should be when I actually install the inverter and batteries.
I took my two batteries back to the store and had them check them and fill to the correct level. They said they are shipped with low fluid so they won't spill. They just forgot to check and fill mine.
I noticed they were using a filler like the one in the picture. It automatically stops the flow when the battery is at the correct level. I figure since I currently have 26 lead acid batteries in various vehicles and equipment, this might be a handy device to have. I am sure some of you have seen these, but I had not.