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Reply to "MTH Locomotive batteries"

If they truly reversed polarity they may cause some damage, but I have not really seen that.  The bigger issue with early PS-1 (pre 97) is software conflict which disables the PS-1 board until it is reset with Tech chip.   They also can gas out at times.  So replace battery and inspect battery harness for corrosion of the terminal or wires.  Most unplug, so it is an easy replacement.  Only early engines had battery wires soldered to board.  G

Last edited by GGG

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