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08-04-2006, 05:17 AM
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#1 |
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Badcaps Veteran
Join Date: Oct 2005
City & State: Rockhampton, Queensland, Australia
My Country: Australia
Line Voltage: 240VAC 50Hz
I'm a: Hobbyist
Posts: 1,295
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Battery packs with cells closest to +ve go first...
In a couple of defective battery packs I have handled, the cells closest to the positive terminal are the first ones to go (and leak), while the cells closest to the negative terminal are good. Is there any chemical reason why this happens?
__________________
My first choice in quality Japanese electrolytics is Nippon Chemi-Con, which has been in business since 1931... the quality of electronics is dependent on the quality of the electrolytics. |
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08-04-2006, 07:08 AM
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#2 |
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Badcaps Veteran
Join Date: Sep 2005
City & State: SWF
Posts: 1,259
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Re: Battery packs with cells closest to +ve go first...
Hi Japlytic,
What kind of batteries are you dissecting? I tell my hands, "no don't do it" but all of a sudden I'm cutting into a pack of LI-ION. The green ones. Some are NI-MH. Mine are not simple series cells like the Makita 9000 which is NI-Cad. In those I'd guess since the drill motor is top mounted and that's where she gets hot, the contact end of pack should go first. I commend you on saving these. They are nasty chemicals and to throw away 9 or 12 because of one or two dead are bad. Words of Advice, don't rub your eyes, and wash your hands a lot.
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Jim Last edited by arneson; 08-04-2006 at 07:13 AM.. Reason: picture |
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08-25-2006, 12:31 PM
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#3 |
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Badcaps Veteran
Join Date: Sep 2005
City & State: SWF
Posts: 1,259
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Re: Battery packs with cells closest to +ve go first...
Sony power division is just getting into deeper shit.
The apple power books are about to join recall. Badbats is right up there now with Badcaps. |
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