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SR44 Silver Oxide Batteries: Quality does not leak

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I found alkaline batteries made a long time ago (20 years or more) don't leak unless the device they are in drained them continuously. Newer batteries leak even if they are not used. I suspect there is a change in the chemicals used and the change was a result of some environmental law.
 
I used to think NiCad did not leak, but ran into this recently:

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Sometimes it’s not even that obvious. Recently I had an otherwise good light meter that succumbed to “black wire syndrome “. The only clue was that the 9-battery clip had been replaced; no other signs of a prior battery leakage.
 
Andreas Thaler said:
I'm paranoid because I see what forgotten batteries can do in photographic equipment 😖
Click to expand...

new, unused batteries (in original packaging) seldom leak...it is the partially-used battery, which are left connected inside devices, which eventually leak.

I place a thin plastic electrical 'insulator' between alkaline battery and one electrical terminal of the device, when I want a battery to be readily available for use upon short notice, to ensure the battery does not leak while inside.
 
I enjoy cleaning electrolyte victims because it is a lot of manual work and time-consuming. When a totally messed up device works again, it is a great joy.

But sometimes you come too late and devices can no longer be saved. Tragic cases, especially when the devices are otherwise in new condition.
 
Rule #1 - Batteries leak.
Rule #2 - If your camera batteries haven't leaked yet they will.
Rule #3 - The only camera batteries that do no leak are the ones not in the camera.
Rule #4 - My Contax II has not leaked battery electrolyte yet but that is only because I haven't found the battery.
 
Andreas Thaler said:
I enjoy cleaning electrolyte victims because it is a lot of manual work and time-consuming. When a totally messed up device works again, it is a great joy.

But sometimes you come too late and devices can no longer be saved. Tragic cases, especially when the devices are otherwise in new condition.
Click to expand...

We have a 'kitchen cleanser' here in USA with Barkeeper's Helper name, that contains powdered oxalic acid and is used for cleaning stainless steel counters and sinks. When mixed into a paste, I have used it on a number of occasions on cotton-tipped swab to clean electrical contacts after battery corrosion (such as flashlight or small battery-powered electronics) appeared when my wife put something away for a year without battery removal...dab it on, let it sit on the contacts for a minute or two, swab with clean, water-moistened swab, blot dry, the contacts are nice and shiny and operation of the device is restored.
 
For AA, AAA and 9V batteries in rarely used devices, I tried Lithium cells (not rechargeable) for replacement. They do not leak and have a very low self discharge. They shall least for 10 years.

Unfortunately, I had many failed Lithium cells which became dead after a short time. No leakage, but dead within less than one year. They were branded Varta and Energizer. Too bad and expensive.
 
wiltw said:
We have a 'kitchen cleanser' here in USA with Barkeeper's Helper name, that contains powdered oxalic acid and is used for cleaning stainless steel counters and sinks. When mixed into a paste, I have used it on a number of occasions on cotton-tipped swab to clean electrical contacts after battery corrosion (such as flashlight or small battery-powered electronics) appeared when my wife put something away for a year without battery removal...dab it on, let it sit on the contacts for a minute or two, swab with clean, water-moistened swab, blot dry, the contacts are nice and shiny and operation of the device is restored.
Click to expand...

I use Durgol, a descaler that also dissolves battery electrolyte contamination.

Is it similar to your product?

www.durgol.com

durgol universal power | A versatile and fast descaler

Quick and easy descaling of objects and surfaces that is gentle on materials. Ideal for kettles, shower heads, pots, pans and much more.
www.durgol.com www.durgol.com
 
Andreas Thaler said:
I use Durgol, a descaler that also dissolves battery electrolyte contamination.

Is it similar to your product?
Click to expand...

SULFAMIC ACID, rather than oxalic acid...conceptually similar. Oxalic acid commonly employed in removal of rust, while sufamic acid is used both for rust removal and descaling. But Barkeeper's Friend does also work well for removal of mineral deposits.

H3NSO3 vs C₂H₂O₄
 
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I've had batteries start to leak from sitting on my desk.

I threw the batteries out, but I bought an XA at the flea market in unknown condition, and it had Sony batteries in it that didn't leak. Put new batteries in it and it fired up. Too bad the rear lens element has a bit of fungus on it from the inside. I've seen a few badly corroded XAs though...

Running a roll of film to see how badly affect it is.
 
Some batteries seem resistant to leaking.

I got these "Roland" branded musical instrument C-batteries in 1983. This still look like new.

all goodies copy.jpg
 
I have also seen folks on an electronic intesrst group refer to Duraleaks :smile: energisers still seem OK, but they are making them in many locations thee days..
 
Chan Tran said:
But I have leaked batteries that were in their bubble pack.
Click to expand...

While helping to clear out my mom's house, I ended up tossing a bunch of unopened packs of Duracell alkaline batteries, with years remaining of their alleged shelf life, and I've had newly-purchased ones leak too. These were purchased at different times, in different states, so I don't think it was an isolated incident. Have not experienced such a failure rate with any other brand.
 
4season said:
At this late date, I'd regard those Sony batteries as collectables!
Click to expand...

Sony's battery business was acquired in 2017 by Mu-rata and so the batteries now say Mu-rata.​

| Laval Europe

www.laval-europe.com www.laval-europe.com

SONY and MURATA​


Where did the Sony button cells go?​


In 2017, Murata acquired Sony's battery and accumulator division and took over manufacturing of the Sony brand.
Since then, the Murata brand has replaced the Sony brand, but the quality and performance of the batteries remain unchanged .


Quality: no changes​


The batteries now carry the Murata brand but continue to be manufactured in the same factories, by the same production teams who still follow the same strict quality procedures.


Performance: no changes​


Murata 's mercury-free high-performance button cell batteries are globally recognized by leading watch movement manufacturers, covering approximately 45% of global demand.


MURATA IS THE WORLD'S N°1 PRODUCER OF WATCH BATTERIES.


- Inventor of the mercury-free silver oxide watch battery
- Renowned supplier to global watch movement manufacturers
- Over 40 years of manufacturing experience
- Over 1 billion watch batteries produced


Namely: Murata batteries combine perfectly with Miyota movements.
 
I recall when I was selling cameras 50 years ago getting a twelve pack of Malroy Duracell tent pack batteries that were leaking right from Malroy. (when Duracell was a sub brand of Malory.) I checked with the Buyer at HQ, and he said it happens, Just stick them in the defectives drawer and the next time the Battery rep comes he will issue a credit.
 
Chan Tran said:
If the choice is between LR-44 and SR-44 I would choose SR-44 however if I just want to see if a camera works the LR-44 is fine and much cheaper.
Click to expand...
A year ago I bought a pack of four LR-44s as back-up while in Japan. They did not work and back home I noticed one was slight expanded. They were sitting on my kitchen table in the sun when the expanded battery exploded (sounded like a 22 caliber pistol shot) and put marks on the ceiling. I was outside and heard it. It could have put an eye out if someone was looking at it.

Lots of energy in a small package.
 
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