Product review (1 stars): This deserves ZERO stars!
This item is totally worthless as a freezer or refrigerator. It works intermittently on either AC or DC. Never use it on any item that may be harmed by warming to temperatures of 50 F as that happens frequently. We have had the same experience with two brand new units. Norcold sent a new replacement for the first one we purchased. Both experienced the same problems. We have been dealing with an authorized service center on & off for two years who has not been able to fix either item.