Originally Posted by kaiyen
I got what appeared to be a rather minty Mamiya 7 off ebay for a solid price recently. Put in 2 CR1/3N batteries and...nothing. Will not turn on. Ordered 4 LR44 batteries to see if it's just a bad set of CR1/3 I got or if the camera is finicky. Or if it's just a dud and I'll have to return it.
Anyone ever had issues with batteries for these guys before? Any tricks I need to know about? Will be really sad if I have to return this...
If the 4 x LR44 stack fits, then, you may find that putting a single layer of scotch tape around them will get them working -- temporarily, at least. That's what I do with my Minox 35GL. The proper battery would have this insulation in place, already.
Depending on the contact springiness, you may have to work to ensure that contacts are made, all the way through the stack. I put partial slits through the tape, to weaken it, and make contact easier.