I too have had both heated grips and now heated mittons. If Triumph offered OEM heated grips when I bought the bike I wold have gone for it but I've found that the battery heated mittons work best. I turn on the mittons about 15 minutes before leaving for work and they are nice and warm. They take a "D" battery in each one. My hands don't get hot but I don't feel the cold either and I ride all the way down to 29 degrees.

'06 America, Raask foot controls, the bike use to be Graphite and Silver, now its Red and Black.