Can it heat while being plugged in without battery charge left? Follow The GO is the only HeatsBox that does not work while plugged in. Articles in this section Where can I get spare parts? Can it heat while being plugged in without battery charge left? Does the HeatsBox GO work without App? How does the timer work? Do I need my phone nearby? How much food fits into the box? Is the HeatsBox GO battery-powered? Fact sheet Will it shut off automatically when not using an app? Can the app be used with the HeatsBox Go while in airplane mode on an airplane? Am I able to purchase a HeatsBox Go with the appropriate charging adaptor for the location to which I will be traveling? See more