Lwiddis wrote:
“Will this cause any problems such as running batteries down or over using 12 volt outlet.”
How can anyone answer without OP giving the Coleman’s amp hour draw? Of course if OP knew the amp hour draw, he’d know the answer.
Because there are only a few of these brands out there, some of us owned them, and they all have known performances.
No matter the brand the performance will be similar.
I'd suggest go on Craigslist under the FREE section and pick up a dorm fridge for OP who wants to be plugged into 120v all the time.
Problem with the Coleman (under $100 coolers) is they can only cool down to 40 degrees below ambient temp, at best, in the shade. So, any day over 78 and the fridge will not keep food from spoiling. Needs to be 38 or below.