I may have posted this before....can't recall..... but, some folks asked for some more info on this setup, so I took some more pics to post up.....
I went with Powerlet due to their reliability and quality products for motorcycles.
Here is a listing of what I've put on my KTM 500 EXC
Low-Profile Powerlet Socket
PowerLet Fuse Block Assembly
Rigid Powerlet to Cigarette Socket Adapter
Micro USB Short Powerlet Charging Cable
Here is an image of the Fuse Block installed next to the Battery and next to the stock Fuse Block. This Fuse Block interfaces between the battery and the following:
Trickle Charger - That can double as a heater for a vest
PowerLet Plug - mounted on the HDB bar
AdvMonstor LED lights - To be setup
Here are some more pics of the full setup
Note: Upgraded version of the HDB top Clamp
As far as power drain, it's really a non-issue.
Generally any USB device (iPod, cell phone) pulls 5V, which is nothing compared to the 200W the system pumps out.
To get a rough estimate of your available power...
200 Watts divided by available voltage (12), allows for roughly 16.5 amps.
16.5amps is a lot of juice, plenty for any accessories you can slap on a dirt bike.
Anyhow, this is the current setup....soon, I'll be adding the AdvMonster lights....should be awesome.....