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Everett M. Greene
Guest
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 Posted:
Fri Nov 25, 2005 10:25 pm Post subject:
Cheap batteries |
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What do manufacturers do to make cheap batteries? I
got some cheap cell phone batteries that came from
Hong Kong and were made in China. After very limited
use, the batteries failed. I can't imagine how they
could have been built such that they'd had such a
limited life. Chemistry is chemistry is... |
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Nobody Here
Guest
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| Posted:
Sat Nov 26, 2005 1:15 am Post subject:
Re: Cheap batteries |
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Everett M. Greene <mojaveg@mojaveg.iwvisp.com> wrote:
| Quote: | What do manufacturers do to make cheap batteries? I
got some cheap cell phone batteries that came from
Hong Kong and were made in China. After very limited
use, the batteries failed. I can't imagine how they
could have been built such that they'd had such a
limited life. Chemistry is chemistry is...
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.... highly dependant on the processes used in the manufacture,
purity, material preparation, etc ...
--
Nobby |
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martin griffith
Guest
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| Posted:
Sat Nov 26, 2005 1:15 am Post subject:
Re: Cheap batteries |
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On Fri, 25 Nov 2005 14:25:38 PST, in comp.arch.embedded
mojaveg@mojaveg.iwvisp.com (Everett M. Greene) wrote:
| Quote: | What do manufacturers do to make cheap batteries? I
got some cheap cell phone batteries that came from
Hong Kong and were made in China. After very limited
use, the batteries failed. I can't imagine how they
could have been built such that they'd had such a
limited life. Chemistry is chemistry is...
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profit margin is profit margin,
martin |
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Guy Macon
Guest
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| Posted:
Sat Nov 26, 2005 4:46 pm Post subject:
Re: Cheap batteries |
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Everett M. Greene wrote:
| Quote: | What do manufacturers do to make cheap batteries? I
got some cheap cell phone batteries that came from
Hong Kong and were made in China. After very limited
use, the batteries failed. I can't imagine how they
could have been built such that they'd had such a
limited life. Chemistry is chemistry is...
|
Try weighing one and then wweighing a name-brand battery.
--
Guy Macon <http://www.guymacon.com/>
<a href="http://www.guymacon.com/">
http://www.guymacon.com/
</a> |
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tim (moved to sweden)
Guest
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| Posted:
Sat Nov 26, 2005 5:14 pm Post subject:
Re: Cheap batteries |
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"Guy Macon" <http://www.guymacon.com/> wrote in message
news:11ogf7d782nkff2@corp.supernews.com...
| Quote: |
Everett M. Greene wrote:
What do manufacturers do to make cheap batteries? I
got some cheap cell phone batteries that came from
Hong Kong and were made in China. After very limited
use, the batteries failed. I can't imagine how they
could have been built such that they'd had such a
limited life. Chemistry is chemistry is...
Try weighing one and then wweighing a name-brand battery.
|
I can assure you then when it comes to batteries supplied
in the box with a consumer products like cell phones, the item
was selected as the cheapest one that met the spec (which
does not include a longevity test). The brand of the cell phone
manafacturer is then stamped on afterwards to make this
cheapest of the cheap battery the branded item.
They cost under 2 dollars each, and when you need to buy a
new one they expect you to pay 30-40 dollars for it. I don't
know about the US, but in Europe that's more than the
subsidized cost of the phone. Go figure.
And finally, you can't use the country that I am currently
posting from to establish where I learnt the above.
tim |
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Jim Stewart
Guest
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| Posted:
Mon Nov 28, 2005 11:18 pm Post subject:
Re: Cheap batteries |
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Guy Macon wrote:
| Quote: | Everett M. Greene wrote:
What do manufacturers do to make cheap batteries? I
got some cheap cell phone batteries that came from
Hong Kong and were made in China. After very limited
use, the batteries failed. I can't imagine how they
could have been built such that they'd had such a
limited life. Chemistry is chemistry is...
Try weighing one and then wweighing a name-brand battery.
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I once saw an X-ray of a 6 volt lantern
battery. Inside was 4 D cells and spacers.... |
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Guest
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| Posted:
Tue Nov 29, 2005 12:53 am Post subject:
Re: Cheap batteries |
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Jim Stewart wrote:
| Quote: | I once saw an X-ray of a 6 volt lantern
battery. Inside was 4 D cells and spacers....
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Should have turned up the beam until you could see the AA's inside of
those ;-) |
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Jim Stewart
Guest
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| Posted:
Tue Nov 29, 2005 1:15 am Post subject:
Re: Cheap batteries |
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cs_posting@hotmail.com wrote:
| Quote: | Jim Stewart wrote:
I once saw an X-ray of a 6 volt lantern
battery. Inside was 4 D cells and spacers....
Should have turned up the beam until you could see the AA's inside of
those ;-)
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LOL... |
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larwe
Guest
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| Posted:
Tue Nov 29, 2005 7:51 am Post subject:
Re: Cheap batteries |
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| Quote: | battery. Inside was 4 D cells and spacers....
Should have turned up the beam until you could see the AA's inside of
those ;-)
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I've seen fake AA cells that consisted of a metal case with a crimp at
the top holding a single button cell. They measure 1.5V... weigh almost
nothing. |
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