The 9v battery would not last long. Somewhere I heard someone say 4
hours....but my experience is limited with it...
I would recomend one [or several] RC-Car batteries, the 7.2 volt kind with
the rechargeble ni-cads, I bet one would last a whole day.
- You'd have to make daily? visits to the track for cleaning.
- You'd have to properly clean and lube the engine after about 2 weeks.
Then at the end.
- You'd need someone there who is not afraid of it - for derailments, etc.
Thinking out loud,
Was installing an exhibit at the library I work in and was asked by a
colleague about the chances of doing a show based on our holdings of
railroad materials AND having a real train running in the case. The width
of the case just begs Z and I could "borrow" my wife's if I'm REALLY nice.
Problem is that there is no space for a real transformer in the drawer
below the display surface, and no feasible way to run a cord into the
display area. I remember Märklin making a battery powered transformer. That
would be ideal. Anyone know if they are still available? The more important
question would be life expectancy of the battery at moderate speed on level
ground? What about wear and tear on the engine? I could see them running
about 8hrs/day for about a month.