Battery needs

[Ziegelsteinfaust]

New cars need more battery, amd larger alternators to run all the electronics in the car as a whole. So a larger battery is needed to buffer the transition.

So if your keeping electrics trimmed down your probably going to be fine with battery life. Worst case the battery will just die sooner, and you'll have some warning before it totally dies on you.

Going to a AGM, and keeping the battery as cool as possible can help with total life span. Provided electric draw is the issue with your set up.