Who has deleted posts before?  Certainly not me.

I don't recall anyone stating that there would be a secondary power supply just for the coffee warmer; I'm not saying someone didn't say that, but I don't recall it and it's not true.  The coffee warming aspect is completely secondary to actually mining, so no it probably won't really keep your coffee all that warm.

There will be no secondary power source for the Jalapeno.  In retrospect, we probably shouldn't have associated it with a coffee warmer, but it is flat and you can set your coffee on it.  It gets warm.