@ToledoEd posted:I purchased a pristine MTH Triplex recently. Owner hadn't run it for years and strongly suggested I replace the battery before powering it up. Good advice. I would like to replace the batteries with a BCR. Then I opened it up and found this: 2 AA Ni-Cd 1.2v batteries. (So I assume it's a 3v system...) (Manual calls for a 1.5v rechargeable NiCad battery...???)
Batteries with nickel chemistry are usually labeled 1.2 volts. They start out around 1.35 to 1.4 but when you load them they will drop to 1.2 pretty quickly, and maintain that pretty much until they die and need recharging.
They look to be original. Is there a BCR or equivalent I can use as a substitute for these two batteries? I know J & W produces a 3v BCR-2 but not sure if or how I could use it.
Is there something else available or are my only options to cut the wires to the battery case and install a plug compatible with the J & W BCR-2, if that's OK or, just replace the two Ni-Cd's with two new rechargeable 1.2v 700mAh batteries?.
The 3v capacitor (a.k.a. BCR) is what you want. If you buy from J&W don’t cut the connector off. If you trace the wires from the battery holder they should go back to a compatible connector somewhere there.
Sometimes it’s hard to see in the jumble of wires, but I’ve always found one. That said I’ve never worked on a triplex before, and it’s a pretty early 3v model.