The invention provides an electrically heated jacket to maintain a hot
beverage contained in a disposable hot-beverage container at optimum
temperature for consumption. Electrical power for heating may be provided,
in various embodiments, by household electric power, electric power from a
motor vehicle electrical system, or batteries, which may be disposable or
rechargeable. The invention also provides a method for keeping a hot
beverage warm comprising providing freshly recharged batteries convenient
to the point-of-sale of hot beverages.
