Author Topic: EEVblog #1274 - Long Term Alkaline Battery Leakage Testing  (Read 10980 times)

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Offline timelessbeing

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Re: EEVblog #1274 - Long Term Alkaline Battery Leakage Testing
« Reply #125 on: October 04, 2020, 04:13:09 am »
Would you trust a modern alkaline not to leak over 10 years?
Of course not.

Quote
There are examples here on the EEVblog where people are finding them leaking before they've even been installed in any device...
I know. Scroll up and you'll see examples I posted on this page.

I'm still not going to waste money on lithium. It's cheaper to buy a new clock.
 

Offline timelessbeing

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Re: EEVblog #1274 - Long Term Alkaline Battery Leakage Testing
« Reply #126 on: October 04, 2020, 04:14:38 am »
The benefit of lithium in that application is having more energy so they last longer.
marginally in these applications
 

Offline SilverSolder

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Re: EEVblog #1274 - Long Term Alkaline Battery Leakage Testing
« Reply #127 on: October 04, 2020, 02:44:09 pm »
[...]
I'm still not going to waste money on lithium. It's cheaper to buy a new clock.

But that takes effort to do.

I pay myself $100 an hour for anything I do that I don't enjoy.  So, spending 20 minutes finding, ordering, and hanging a $5 wall clock actually costs me nearly $40 by my calculation!  So, a lithium battery is easily worth its price to me, if it stays in service significantly longer than the alternative.   

Your calculation may be different, if you have a hobby of searching for clocks and hanging them up, then a lithium battery doesn't make sense, you'd probably change the clock before the battery drained anyway! :D



 

Offline timelessbeing

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Re: EEVblog #1274 - Long Term Alkaline Battery Leakage Testing
« Reply #128 on: October 04, 2020, 04:15:42 pm »
well if you pay yourself  :-// then you'll get your money back. Also, your rates are a rip off.
 
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Offline coppice

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Re: EEVblog #1274 - Long Term Alkaline Battery Leakage Testing
« Reply #129 on: October 04, 2020, 05:21:37 pm »
I pay myself $100 an hour for anything I do that I don't enjoy.
If I have to pay me $100 an hour, I find I'm overpriced, and the work gets outsourced.
 
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Offline SilverSolder

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Re: EEVblog #1274 - Long Term Alkaline Battery Leakage Testing
« Reply #130 on: October 04, 2020, 05:54:50 pm »
It's a good way to think about if something is worth doing or outsourcing.

Basically, is it easier to make the $ to pay someone to do it, than it is to do it yourself?

If I like doing it, I charge very little per hour so I am quite competitive.  If I really hate it, the rates are even worse than already quoted, and someone charging hundreds an hour can get my business!  :D
« Last Edit: October 04, 2020, 05:59:15 pm by SilverSolder »
 

Offline timelessbeing

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Re: EEVblog #1274 - Long Term Alkaline Battery Leakage Testing
« Reply #131 on: October 04, 2020, 06:34:57 pm »
It's a good way to think about if something is worth doing

Is it though? How much do you charge to put away the dishes or do the laundry? Your life sounds expensive.

The lithiums will last 15% longer, saving me a grand total of 2 seconds per year for swapping batteries.
« Last Edit: October 04, 2020, 06:36:31 pm by timelessbeing »
 

Offline SilverSolder

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Re: EEVblog #1274 - Long Term Alkaline Battery Leakage Testing
« Reply #132 on: October 04, 2020, 10:37:05 pm »
It's a good way to think about if something is worth doing

Is it though? How much do you charge to put away the dishes or do the laundry? Your life sounds expensive.

The lithiums will last 15% longer, saving me a grand total of 2 seconds per year for swapping batteries.

They will last 15% longer in your application.   In my ultra low current drain application, I expect them to last 2x, maybe 3x longer - essentially, I expect them to last the full 10 year shelf life.
 

Offline timelessbeing

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Re: EEVblog #1274 - Long Term Alkaline Battery Leakage Testing
« Reply #133 on: October 04, 2020, 10:57:38 pm »
Well according to Energizer datasheets, the lower the power requirement, the smaller the capacity advantage.
 

Offline SilverSolder

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Re: EEVblog #1274 - Long Term Alkaline Battery Leakage Testing
« Reply #134 on: October 04, 2020, 11:08:42 pm »

I'm just looking at the same datasheets...    Shelf life: 10 years.   That's at least 2x longer than alkaline, perhaps 3x in some cases.

So, if you only draw e.g. 50mAh per year...  the lithium battery should last the full 10 years, whereas an alkaline will self destruct in 3 - 5 years.





 

Offline timelessbeing

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Re: EEVblog #1274 - Long Term Alkaline Battery Leakage Testing
« Reply #135 on: October 04, 2020, 11:29:32 pm »
"should"
we already know what their promises are worth.
 

Offline SilverSolder

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Re: EEVblog #1274 - Long Term Alkaline Battery Leakage Testing
« Reply #136 on: October 04, 2020, 11:48:24 pm »

Let's resume this thread in 2027, that's when mine will all be 10 years old!  :D
 

Offline timelessbeing

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Re: EEVblog #1274 - Long Term Alkaline Battery Leakage Testing
« Reply #137 on: November 21, 2020, 10:22:37 pm »
9V (true) batteries are not immune either.


A whole box of them .... dead and leaky
« Last Edit: November 21, 2020, 10:25:14 pm by timelessbeing »
 
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Online BravoV

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Re: EEVblog #1274 - Long Term Alkaline Battery Leakage Testing
« Reply #138 on: November 26, 2020, 02:23:50 pm »
9V (true) batteries are not immune either.


A whole box of them .... dead and leaky

Meh ... just the box, thats nothing, compared to the casualty I suffered.

More details here -> YARA2 : 9V Alkaline cells do leak, check your expensive gears often guys ...  >:(  >:(  >:(



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