CalMark Covers

[connor77]

What are the downsides, if any, to just removing the batteries before storage?  I live in Maine and our winters can be brutally cold.  I also don't have a shore power plug near where I store our trailer...yet.  

I'm thinking I'd like to bring my 3 Lithionics batteries into my basement where it is cool (not cold) and dry.  Is this a bad idea?  Am I missing something and they shouldn't be removed and I should just occasionally fire up my portable generator to charge them while they're in the trailer?  I realize that some batteries are awkwardly heavy and maybe this is why people prefer to not remove them but I don't think I'll have any problem lifting them.