What causes alkalines to leak?

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samyy
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Quote:
If anyone even made C-Zn AA/AAA cells

Do you mean something like this ?

Lightbringer
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That’s a candidate…

09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0

arow55
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rekit500 wrote:
I read on another forum that the guy gave up on alkylines for remotes and things like that and just uses plain ol carbon ones. They might not last as long but they don’t leak. I’m going to try that.

They leak nasty stuff.
BlueSwordM
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They still leak potassium hydroxide+ferric chloride, which tends to eat away at the steel springs used in most battery appliances.

TLDR: NiMH Eneloop is king.

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

hank
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Quote:
plain ol carbon ones. They might not last as long but they don’t leak.

I’m old enough to remember when everyone had carbon-zinc cells, before alkalines became the newly available improved thing.

The carbon-zinc cells did occasionally leak.

https://www.google.com/search?client=firefox-b-1-d&channel=tus&q=carbon-...

As I mentioned above long ago, the chemistry (of both kinds) slowly dissolves away some zinc that makes up the outside cylindrical case for the battery, and eventually a pinhole opens.

The other trick with carbon-zinc cells was that if you dropped one on pavement, the internal carbon rod could fracture, killing the internal circuit.

Hugh Johnson
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It’s been a journey for me. Many years ago I used rechargeables for a while but was put off by horrendous self-discharge. A few years ago I pulled out a lot of old gear and found 5 devices with leaking batteries. Switched to *loops and never looking back.

jeff51
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I think manufacturers have just been lowering the case thickness/quality because some bean counter told them that returns/repairs/credits would cost less than saving $0.00001 per cell by using cheaper construction.

I found some C-Zn Panasonics on Amazon:
https://www.amazon.com/Panasonic-Batteries-Carbon-Double-Battery/dp/B01M...

And some Sonys:
https://www.amazon.com/SONY-S-SUM3NUB4A-Heavy-Duty-Carbon-Batteries/dp/B...

But like anything battery related on Amazon, I’d worry about being sold out of date or fakes.
These things – if they really don’t leak – would be good for low power stuff like remotes and clocks.

Eneloops for everything that will work with them..
All the Best,
Jeff

arow55
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Lightbringer wrote:
Back in the day, I needed one of those teenytiny 12V batteries (A23) for my car’s remote. Rat Shack sold the C-Zn ones for 89¢ each, and they lasted for years.

Then, those were discontinued, and they only sold the hateful little alkaleak versions for almost 3bux a pop… which only lasted a year at best.

If anyone even made C-Zn AA/AAA cells anymore, I’d buy ‘em by the box for clocks, remotes, small instruments, etc.


Isn’t that what the dollar stores sell cheap like 8 for $1?
snakebite
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yes and i have seen lots of them leak.
the 9v dont seem to leak.
when they were 2/$1 i made b batteries for tube radios with them.
now cheaper options exist.

arow55 wrote:
Lightbringer wrote:
Back in the day, I needed one of those teenytiny 12V batteries (A23) for my car’s remote. Rat Shack sold the C-Zn ones for 89¢ each, and they lasted for years.

Then, those were discontinued, and they only sold the hateful little alkaleak versions for almost 3bux a pop… which only lasted a year at best.

If anyone even made C-Zn AA/AAA cells anymore, I’d buy ‘em by the box for clocks, remotes, small instruments, etc.


Isn’t that what the dollar stores sell cheap like 8 for $1?

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