Thanks! That 107% should actually be going up even further. My 90 day average currently has two fill ups that are in the low 50s, and I don't see myself dropping down below 60 until winter rolls around.
I did leave it on the charger all last night. When I went to start the car, the voltage quickly dropped down to 12.5V and then 12.4V after a short period. I had just left it on the 10A charger all night. It lowers the voltage down to 13.2V after it is done with its charging cycle.
This is the charger I'm using. I know when it is charging it gets up in the mid to high 14V range, sometimes higher. I think I've seen into the 16V range when charging batteries with it. But, the battery is far from new. I got it used from a guy who had it sitting in his garage for 1-2 years. I'm kind of surprised it holds the charge as as well as it does. I guess I'll try sticking the desulfator on it when the car is going to sit for an extended period of time.
The battery does have enough juice to get me to work and back. Yesterday was a little rainy, so I ran with running lights and wipers on. I don't think the battery voltage dropped below 11.9V, so I'm good in that department. I am just wondering if I can do anything to restore the battery.