Yashica Electro 35 Battery

[JeremyLangford]

I just bought a perfect condition Yashica Electro 35 from the flea market for 5 bucks. The only problem, I hope, is that the battery is dead. After looking for solutions, I read that you can buy a smaller 6v battery and make it fit with a spring. I got the spring and so now I just need to get the battery. Whats the best one to get? I went to radio shack and they said they didn't have any there but that I could order this one from their website.

http://www.radioshack.com/product/index.jsp?productId=2715647

Is this the type of battery that you guys use? I'm kinda worried because that battery is Alkaline and for my Minolta SRT-101 SLR, I had to get the camera modified for a 1.5v instead of a 1.35v and I got a Silver Oxide 1.5v battery because it has a flatter discharge curve than a standard alkaline battery.

 

[Peter_Jones]

Congrats on the buy - don't worry about voltage, the camera's meter circuit regulates to the correct voltage. I use 4 x sr44 wrapped in card with a spring, rough bodge but works fine. Anything 6v ish that will physically fit (may need padding out) will do the job.

 

[colyn]

You can use the 544 6v battery that is used in the Canon AE-1..

 

[gb hill]

Most use a PX28 6volt battery. Common on the shelves at Radio Shack. Used with the adapter from Yashica Guy makes a perfect fit. BTW the Electro accepts this battery and you don't need to modify the circuit to the meter. The modification is already in there to change the current. I like this battery because it is also the battery for the A series Canon SLR's.

 

[gb hill]

To clarify the 544 and the PX28 are the same battery. It is called by more than one name.

 

[JeremyLangford]

Alright, I guess I'm about to order this one. It's the right one isn't it?

http://www.amazon.com/DURACELL-PX-28AB-Photo-Electronic-Battery/dp/B00006JPHH

 

[btgc]

I'll second 4xSR44 stack and 4SR44 cell (which can be more expensive than first choice).
To be fair, now I also use lithium PX28 just because I have one. As a nerd, I like idea that silver oxide cells have flattest voltage curve, pretty similar to original mercury cells. I think modern cameras have sophisticated circuits, adapting to voltage drop of lithium cells?

Regarding voltage regulator in Electro - I'm layman with electrics, so I can't tell whether it's true or not. Some Finnish guy obviously knowing more than me has published his observations on theme and his conclusion is that Electro doesn't has voltage regulator. It just tolerates well. Wait, maybe because shutter is stepless and error results in smaller error?

Anuway, I love Electros can be used with wrong batteries, still making good exposures.

 

[ItsReallyDarren]

I use PX28's in my Electros. So far haven't had a single problem. Not sure about availability in different areas but I've never had a problem getting ahold of these batteries in any hardware or drug store.

I too like to nerd out on cameras and do things that border on the unnecessary. I have an Electro with 4 675 hearing aid/zinc air batteries stacked together just to get the original 5.6 voltage.

Haven't noticed a difference between the two battery setups.

 

[bhop73]

I bought the Yashica-Guy battery adapter. Works like a charm, includes a battery, and lets you use batteries you can get in any store when that one is dead, although the one you linked to should work fine.

 

[Pompiere]

I am also using the PX28L with a cardboard sleeve and a spring robbed from a junk flashlight.

 

[sevo]

As a nerd, I like idea that silver oxide cells have flattest voltage curve, pretty similar to original mercury cells. I think modern cameras have sophisticated circuits, adapting to voltage drop of lithium cells?

Lithium cells have little drop. They are not quite as flat as mercury or silver oxide, but much closer to them in profile than to alkaline. That they are no good as a drop-in mercury replacements for circuits depending on a reference voltage is due to their high voltage (3V vs 1.35V) and a noticeable hump at the begin of their discharge cycle.

Regarding voltage regulator in Electro - I'm layman with electrics, so I can't tell whether it's true or not. Some Finnish guy obviously knowing more than me has published his observations on theme and his conclusion is that Electro doesn't has voltage regulator. It just tolerates well.

It does not use stabilization, but it has a comparator circuit, i.e. it measures the difference between the cell voltage and the voltage across the photoresistor rather than directly measuring the latter.

Sevo

 

[conradyiu]

Try this link, though it is in Chinese, you should understand from the photo.

 

[retro]

You don't need an adapter or spring or tube.

Just get one lithium 123 and two LR44 batteries. Put the
lithium in first and then the others on top with correct polarities
and that's it.

You can tape the two LR44s together by wrapping one narrow
piece of tape around their outside edges (while holding them
together) to keep them from sliding around.

 

[vbarniev]

Y use PX28 but like better retro's solution.

 

[Eugen Mezei]

Well guys, I have a question: How many of you talking about having no problems with non-mercury batteries in the electro (or any other camera built for mercuries) tested it with slide film?
Stating not to have problems when using negatives is worth exactly nothing.

Eugen