New Battery: AGM vs. FLA

Hey gang,

The battery in my TL is on it's last legs (no idea how old it is, it was in the car when I bought it 25 months ago); my plan all along has been to throw a new AGM 24F battery into it and call it a day. Prior to pulling the trigger on the new battery, I thought I'd do a little research, and said research has given me pause.

• Per my research, relatively late model cars have circuitry to prevent overcharging AGM batteries, the 3G TLs have no such safeguards.
• When an AGM battery is overcharged, and once the hydrogen catalyst has been consumed, overcharging will end the life of the battery in pretty short order.
• As a general rule, AGM batteries are pretty good plug in replacements for flooded lead acid batteries, but only for cars which make a lot of short trips.
• When an AGM battery is used in a car not designed for that type of battery, the battery will typically have a very short life if the car it is in does lots of long-distance highway driving.

Given I do a lot of highway driving, say 10-12 trips of 20+ miles per week, I am concerned if I opt for an AGM battery, I'll destroy it in a matter of a few months. With that in mind, I have a few questions for the collective here:

• Should I simply stop overthinking it and put a wet battery in?
• Is there a relatively easy way to enhance the TL's charging system to play nice with an AGM battery?
• And most importantly, for those of y'all who've already taken the plunge into the AGM world, what has your experience been?