|Only ONE Way To make Coffee Aboard!|
|USB Powered. Not JUST For Coffee|
The latest ones have a lithium ion battery and will hold temperature (allegedly) for two hours away from their charge base. I haven't tested it (yet) as they are around $79.95 - a bit steep for a mug, in my humble opinion. Perhaps I'll get around to testing it when the prices get into the $20.00 range. It's a cool gizmo, but not THAT cool!
I like hot coffee (iced too) but hate it when it goes cold in the middle of a mug. If you don't like that either, these solutions will help. I promise.
Be Seeing You...Down The Road,
Rich "The Wanderman"