Yep, that is right- we use two full sets of heated Gerbings head to toe (jacket liner, heated pants, gloves and socks) without any problem all winter.
I had posted a detailed list of what the clothing used for current along with a 'best guess' as to how much of that capacity we could use before the system voltage dropped to approximately 13 volts but it went away with the old forum and I don't have a copy of that data anywhere. As I remember, the final load was something more than 300 watts of use for heated clothes alone, and then all the other electrical things (GPS, Comm system, glove box lights, etc.) but nothing other than the actual heated gear draws any appreciable amount of current. So for what the OP asked about, it just will not be a problem.
By the way, the two things that do draw a considerable amount of power are headlights and anything that makes heat (clothing, grips, heated seat). This is unfortunate too because a lot of the long distance bike riders use a lot of both- especially lights. Most sport touring bikes do not have a great deal of alternator capacity and so bikes like a C-14 and FJR can be at the electrical supply limit fairly quickly. Again, this is not for normal use but running two sets of heated clothing along with at least one pair of high performance driving lights will ask more than what is available from the alternator. Some of the FJR long distance folks have been fencing with this issue for years. I am not bashing Yamaha here because we C-14 folks are in the same boat and it will be an identical problem as the C-14 gains ground in the long distance community. But again, none of this applies to any kind of usual use of the bikes. And Kawasaki was kind enough to include a voltmeter with the bike's instruments so we can keep an eye on it. Increasing the load on the system results in reduced system voltage (simple physics) so we can easily see how we are doing. The system voltage should not drop below 13.0 or better yet, about 13.2 to make sure the battery is charging, at least when the engine is above 2,500 RPM. The voltage can dip down into the 12 volt range when idling as long as it is not for extended amounts of time (more than a minute or less).
Brian
I know that some of the guys are running 2 sets of heated gear without problems. I think that Brian(BDF) is one that runs both. If your worried abt it change the head lamps to the HID bulbs(35 watts), it will give you a few more amps to play with and a little more light on the road.
Good Luck,
Fred
