I think you will have to get international adapters that take 3 prong American plugs, or get a 99 cent cheater plug at your local hardward store. Of course you can always just get an extra power cord and pull out the grounding plug. (FWIW-all of my international adapters take 3 prong plugs).

The 700M has a chip that makes 3rd party power supplies incapable of charging the battery.