I use a 45qt yeti as a tiller console. It has my grab bar and ram mounted GPS bolted to the side. I very rarely use it as fish storage so I thought it would make for a cleaner in stall if I put my 40 amp/hr GPS battery in the cooler and just used it as dry storage. An ice mule will fit inside with the battery box and a few small things so I can still keep drinks and whatnot if I wanted. Would ventilation be a problem for the battery?