I, too, tried running the fridge on battery while travelling. That always drained the battery very quickly.
Now, I leave ice packs in the freezer for our lunches, but also to place in the fridge compartment while travelling. This worked very well and I have never felt the need to put the fridge on battery.
I bought an adapter to adapt the TM plug to a 120 outlet. They aren't that expensive, and work very well. You may have trouble running the AC plugged into 120, but the fridge will cool well.
|