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Purchased an MTH Triplex (PS2 - 5V) (20-3101-1), and a BCR to replace the old one, to my surprise when I opened the engine- instead of a 9V battery there was 2 1.2v AA batteries instead. I checked the board which appears to indicate it's a 3v model, so I'm wondering - did MTH start silently upgrading these to newer 3V PS2 boards in 2003, or did the prior owner upgrade this? Photos attached

PXL_20210723_043628267

PXL_20210723_042914112PXL_20210723_042923864PXL_20210723_042938968PXL_20210723_042950028

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  • PXL_20210723_042914112
  • PXL_20210723_042923864
  • PXL_20210723_042938968
  • PXL_20210723_042950028
  • PXL_20210723_043628267
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Thanks for the help all, 3 additional questions:

  • did these early gen 3v boards suffer from the same issues that plagued the 5v boards?
  • is it possible to change it to the pin connector (the name escapes me) that the regular 3v battery/BCR uses?
  • are these standard AA rechargeable batteries if I want to replace the unknown's that it came with?
Last edited by SirCaptain

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