Yes, it does make sense Steve.
Kinda thought that the BCR2 starts charging (when installed inside a loco/tender) when I switch on my DCS Remote Commander (19VAC) and wait for one minute, while the loco sits on the tracks. The bridge rectifier on the PS2 board converts the incoming AC into DC, and then into the charging circuit of the battery/BCR.
If the DCS Commander can supply the umph to charge the BCR at 19VAC, I suspected my Distiller DC hobby transformer (0-18VDC) should be able to get the BCR up and running.
The only thing I was aware of, is the need to apply DC power to the BCR, as it is a "battery", when all is said and done.
As they say in the classics.......try it and find out!!! What have I got to lose.....one crappy DC transformer that never gets used anyway, and possibly a fried BCR2 (I make them easily for around $8 each).
Watch this space Steve......
Peter.....Buco Australia.