The USB Cup Warmer is a convenient solution to keeping your beverages warm on your desk. It is a low voltage heat plate, which can keep beverages warm up to 30-60 minutes longer. Stainless steal or metal cups are recommended to maximize performance.
Simply plug into an available USB port and never drink a cup of cold coffee or tea again (unless that’s what you like!).
Product Features:
•USB Powered, easy installation, no driver required, plug & play. •On/Off Switch •Compatible with USB 1.1 or 2.0
I'm curious if anyone has tried one of these or similar, and how well it works at keeping things hot?
5V at 1A from USB is only 5 watts. While a 5 watt stepper isn't cool, it seems like the end temperature would be warm not hot..
Of course the additional heat may make it where something already hot takes a long time to cool down to warm, so maybe good enough. Just seems like it'd take closer to 10 or 20 W to keep a cup at a hot temperature indefinitely.
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