If they are red or blue no. 12.75v, depending on temperature is perfect. Optima says float up to 13.8v. Little too high for me as far as battery longevity goes.
If you have the yellow tops add .2 volts.
Never try to equalize a sealed battery. You are well above the voltage were sulfation starts I would leave well enough alone. On the other side of things if your overcharging you're corroding the plates away and possibly reaching gassing voltage which is a No-No. Two of those bad boys @12.75 will start that anywhere in the world, if they passed a load test. You are not technically bringing up the CCA just because the voltage is up. That is more of a function of age and how the batteries were previously taken care of. Those are very tough batteries I'm sure you'll be fine. If your at or above 19v while cranking you are fine. Now that they're fully charged, unless they're yellow tops, you could run them up to the auto parts store and have them throw a load on it. If you're going to use a battery maintainer make sure you check the float voltage while in use. unfortunately I usually find them all over the place and most are not adjustable $$. On float of 13.2-13.3, of any color, they will stay good for a crazy amount of years.