Just for the record, battery powered Ogauge is not a huge technical issue by today's standards. There are a number of battery systems that will perform adequately like NiMH which is easy to work with and relatively inexpensive. I have four locos running on battery power for over a year and they perform flawlessly. One of the R/C modules is dual power and can run either from battery or center rail track power by flipping a slide switch on the module. The dual power setup also allows for convenient recharging of the battery when parked on a designated siding with DC which provides the appropriate recharge current applied to the insulated center rail of the siding.
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