I dont think so...we have been looking at upgrading thompson in '12 and no mention of this... to be honest, I dont think any flights would have them. A plane does not have much need for electricity, save a little for the flight controls, entertainment and tail motors.
Dont give up hope yet though. Someone might help you. Have you ever thought of looking into extended batteries etc for the DS? I have a PSP and can swap out the battery in 2 secons, a cheap 3 hr battery is less than a tenner, so i'm just getting 2 of them and charging them both up.
Not sure about the DS though.