Got the 22L yesterday in good shape, let it set for a couple hours to drain down fluids and plugged it in to battery and it cooled down fast to my set to 34F, haven't tried it on 110V yet. The software in the manual is for the newer Android 10 phones but I downloaded Apicool T Series App and it works great. The controls in the app actually work faster then the controls on the cooler. Was surprised to see the little ice cube tray, it had hard ice before I went to bed last night, could also be used for a couple of ice cream bars, this is a really neat feature. Also has a little led light that comes on when you open the lid. It also has a USB port to charge your phone. The advertised 45 watt power rating is correct, this is what it read on my meter when it stated up on max cooling at 85F and quickly cooled down to 34F, it probably uses less amps on ECO mode. Checked it out after running all night and still working good and plugged it into my Aimtom 155wh power station and it is now running the cooler fine. I would buy this product again and recommend it because it is just the right height to get a half gallon carton of milk into is why I bought it in the first place.