BD's website instructions (http://www.blackdiamondequipment.com/uploads/black-diamond/files/MM6017_B%20NRG%20IS_WEB.pdf) doesn't mention the power compatibility, but at the first glance at the picture I see interchangeable plugs for countries that provide 240VAC power through wall sockets. Without tech specs to support it, I'd feel safe plugging it into 240. Although you can always order it and read the plug itself, and return it if it doesn't support 240. Gotta love Back Country's policies for things like that.