Yeah I mean unless it's horribly corroded and gonna spew stuff everywhere, it's gonna be fine especially if you disconnect it.
I have found, 100% of the time (except that time I had a bad alternator) my issues with starting my car was the fact I left some lights on. So much so the husband actually bought me one of the uh things that charge your battery like an extra battery with jumper cables. You really only want to do that like so many times it is bad for your battery although charging it up right away is good. Batteries have shelf lives.
I have also found, 100% of the time when my car will not START I have locked all the doors with the keys in the ignition and freaking RUNNING sometimes. I hate when that happens. One time at work I was so flustered with like getting to another worksite on time I DID leave my keys in the ignition but also DID leave one of the doors open but apparently I did not check well enough and stuff and it actually WAS open which the locksmith pointed out when he showed up. LOL. He asked me if I "Did this often" and I was like, "Often enough to ask you where you buy those objects." He informed me in AZ it was like a crime to do anything with them which like, I was like, "Well I don't see where I would put them besides the trunk of my car so it kinda defeats the purpose anyway." Then he told me about the open door and I gave him my "Big eyes" and he only charged me half.
It's pretty dang weird one of the first times like, I asked a cop for assistance as I was told by the "new to me" Walmart they could help. The police lady was like, "Nah we don't do that." I asked her if (since it was my car) if I could VANDALIZE it by breaking a window to get in and she was all cool with THAT. She did however, call the locksmith for me and since it was considerably less expensive than in South Tucson and also 10 minutes away I decided the cost would be lower than breaking a window (I think I was in a bad mood that day.)
I have found, in fact, my cars to be almost 100% reliable most of the time except for ah, "Operator error" I guess one would call it.
Anna