Kevo91

I need some help trying to figure out an issue with a problem that might be the battery or connection. I got a new battery a few months back and every so often my truck won't turn over like the battery is dead but eventually turns over after about 5 minutes of trying. This happens maybe once a month so not often, but definitely enough to be an issue. I've had the battery checked and I've checked all the connections and everything looks good. I'm stumped as to what could be the issue so anything would be helpful. 16 Silverado