It was on a 2 amp trickle charge (it takes forever to fully charge any battery, esp. two at a time, I'm not worried about that). Voltage starts low then ends high. When I started them the voltage was 13.6, they would have only been charged above 14.4 for less then 3 hours.
I figured out why it would go into to the float stage. It's all good now. Will try them out this weekend.
Edit: Also i was wrong about them being on charge the first time for 12 hours, it was only 8.