Robert: Get a large magnifying Glass and read the speifications listed.on your charger. Mine say input 100 -277 volts. 50 - 60 Hz.. Now you will need to get an adapter plug to insert into receptacle in the countries that you visit. You can plug your regular North American plug into the adapter. Best you reseaarch now to find if more than 1 adapter is needed. JIS should be able to help. Have no idea where mine are.