There are many details and features in safes. They all cost money. I'm not familiar with either safe you list, but I would be very surprised if a battery replacement would mess up your settings? I have a Canon with electronic keypad and enclosed hinges. Most safes I have looked at had at least ten gauge walls and a 30 minute fire rating, but I think you can upgrade it yourself with some wallboard, if you think you need more time? I don't find the enclosed hinge to be a problem, as far as opening the door wide enough to access anything inside. If you put the safe in a corner, and bolt it to the floor, a crook will have only one side to hack through, which is a lot harder than "can opening" the rear. From what I understand, this is the most common method of entry, since all the mechanisms in the doors are difficult to defeat. If I lived in a remote area and was away for extended periods, I'd consider boxing in the exposed side to slow them down. I don't think a safe is ever foolproof? ......I take that back, my brother-in-law has a reinforced concrete bunker with a bank vault door. Now, that's secure.
Good hunting. LB