refrigerator defrost question

I now have my residential refrigerator in my RV. I run it off my inverter, generator or shore power. I don't have a lot of battery power to spare so I disabled the defroster. Another member of the forum mentioned I might have problem doing this a new refrigerators are high efficiency and may suffer some cooling loss with just a little frost. So that got me to thinking.

We camp at the most a month out of the year. The longest we would be out at a time is 2 weeks. Most trips would be 3 days to a week. After each trip the fridge would be shut off. So the question is do you think I could run into a problem given these time periods. If it is a two week trip that means its just me and dw so the fridge door will not be opened and shut a great deal. If it is hot and humid the AC will be running so the air in the camper should be fairly dry.

When I disabled the defrost I broke one connector off so I would need a new defrost timer to make the defrost run again. So I would have to buy a new timer to make for about $15.00. Which I could keep on hand in case there was a problem.

So do you all think this would be necessary or not? Would you buy one or wait it out and see what happens.
:?

Thanks