frozen meats in a cooler how long would it last

Ok except that if you idling you still need something to plug into, second I really wouldn't be bringing a microwave with you as if I am understanding this right your going to orientation and then from there you going into training with another driver? Or you have the experience and going straight into a truck?
microwaves are a dime a dozen, get to orientation and if you still need one buy one from Wallyworld find em from $30-$60. Most time students bring way too much stuff for training sometimes it's just crazy.

my second to last student really wanted a micro, so after I graduated him I gave him mine, maybe you be lucky and trainer ends up giving you one like I did just a thought

 

Invest in dinty moore

 

Like I said earlier you need to talk to the shop before you start sticking inverters in their truck. Company's worry about their electrical systems shorting out from to many items pulling amps from the system.

 

Well power inverters again need to check with company even ones that plug into cig lighter, knight transportation this was a no no.

again your talking about a microwave, you need at least 1k watt inverter and those have to be hardwired in, but I have seen people use jumper cable ends hook to battery to use it. The highest I believe you can get to plug into a cig. Lighter is about 450w. But not nearly enough to run a micro.

its good to do research but your a long way from getting into a truck. And I'll bet you will be on the road longer than a week with a trainer most places average at least 30-60 days before one is let loose on the public