My truck has three always-hot sockets on the dash which is a good thing - until you don't unplug your powered device. I've owned the truck for nine years and have always unplugged my GPS and dashcam when parking. About two months ago I forgot to unplug them and let the truck sit for two weeks. Went to use it and had a dead battery. Luckily I wasn't in a rush to get anywhere so threw it on the battery charger for a few hours, and all was good.