Sunday, December 1, 2019

Keurig Switch Mod

I recently bought a Keurig for $5 at Goodwill. I wanted to see how the design of it compares to my robotic tea maker.
It takes a while for the water to preheat. That uses 1.3 kilowatts for a total (48 watt hours) to get up to temperature, and then about 500 watts periodically to maintain. But even after pressing the off button, it still uses 6 watts due to the iron core transformer for the control circuitry.
To prevent the constant 6 watts, without having to unplug it all the time, I added an extra switch. This modification makes it possible to turn it all the way off without unplugging it each time.