Thanks! And yeah, very annoying--the original charger isn't dual voltage no matter where you buy the toothbrush. I have two of them now because it was cheaper to buy a new toothbrush in Europe than to buy the European charger.

Your link also led me to this:

http://www.ebay.com/itm/Replacment-E...G/122530621860

which is a knockoff of the original charger but is dual-voltage according to the label.

Now I'm embarrassed that I didn't check eBay first when I needed to replace the charger.