"Another point is I discussed the possibility of using an induction coil to charge the battery"
Never going to happen dream number 2, a close second after a new Deltang sound board!
There's been a disproportionate amount of talk about it, compared to any success in doing it!
"He said I just might be on to something, but since I decided to do a larger battery I did not follow up"
"I will now pick that up again, but one disadvantage I see is near exact positioning to line up"
How about a built in macro CCTV camera, with wireless radio link back to the engine driver?
Theoretically you could use precision CNC position-sensors, if the loco moves at 1mm/second.
"Just plain powered tracks for recharging would probably be easier"
"my original idea, but I wanted to get rid of track wires altogether"
An easier idea for on track recharging is, stop the loco on track and plug in your charge cable.
It has the advantage that you can claim 100% Dead Rail then, if you like that awful term.
"probably not much difference between wires to induction coils and sections of track"
In reality there is probably a very big difference between induction coils and wired track.
Induction coils are likely to end up not working properly, whereas wired track charging is.
I agree that the term "dead rail", denotes (at least to me) that it is DEAD, KAPUT, NOT LIVING, ...etc...
Just my rant about what is really radio control with onboard batteries, or better yet - wireless.
All my locos have batteries installed and when they run down, I simply recharge them.
While the loco is on the workbench being "serviced", it is time to check on lubrication and other physical conditions.
The simple way is for me, no wiring anywhere on the layout.
But I am just a newbie, I have only been using r/c for now over 20 years.
Maybe I will learn something new...maybe not.
Woodie - an old coot who is set in his ways
____________________ It doesn't matter if you win or lose, its' how you rig the game.