I have two MTH JC 4-6-0s. They have the 3volt-Ps2 electrical system. I need to replace the batteries, but would like to use the BCR-2. I have used BCRs in my nine volt units, but never the BCR-2 3volt units before. Looking at the parts list on these engines, there are two battery pack, one for two AA cells and one for three AAA cells. My question is is the BCR-2 compatible wit each and how does the BCR go into these engines. It looks like the BCR-2 has two wire leads, do they just insert? Basically just plug in? Thanks.
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