Need help with battery knowledge.

So the past couple of days ive done some reading, searching and some more reading. 1st i was trying to figure out Northstar vs Odyssey, but quickly realized they are damn near identical and id be satisfied with either.

I was initially leaning towards genesis offroad dual Odyssey setup but come to find out, it isnt compatible with the '18 LED headlights. I also realized my plans for the future of my truck, would rarely require the truck to be off when using planned lights or accessories. So a dual setup might not necessarily be right for me and my build.

Thats what brings me where i currently am and havent been able to find an answer. My 2018 stock battery replacement would be a group 27F. Would i be able to upgrade to a group 31, slightly larger dimensions and better overall battery capacity, without any issues or modifications??

 

If it physically fits you’ll be fine.charging system won’t care how big it is