4 ms·The key is to use the USB cable itself as the heating element in the boiler.by jrockway 3y agoThe key is to use the USB cable itself as the heating element in the boiler.mr_toad 3y agoBetter yet create a 3000W wireless charger, and you can just stick the pot directly on it.jrockway 3y agoMicrowave oven / wireless charger... same thing!