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I don't think I'll bother with a new Li-ION laptop battery
David Jenkins - 2/9/07 at 06:47 PM

Recently I was looking for a new battery for my laptop.

I've gone off the idea...

LINKY

tks - 2/9/07 at 08:42 PM

If you put it in an unstable state what do you think what happens with fuel in an unstable state??

would it be an reason not to fillup anymore?/

For me its useless that video.

Tks

caber - 2/9/07 at 10:19 PM

I dunno I thought it was good fun in an pyromaniacal way! I just hope not to many airline people see it or we won't be able to fly with laptops anymore

Caber

David Jenkins - 3/9/07 at 07:16 AM

quote:
Originally posted by tks
If you put it in an unstable state what do you think what happens with fuel in an unstable state??

would it be an reason not to fillup anymore?/

For me its useless that video.

Tks


I know that they abused the battery to make it go like that - but it is a good demonstration of the way that a faulty battery would go up. As there have been quite a few manufacturers recalling thousands (millions?) of batteries over the past year or so for this very reason, I'm interested and concerned to see just how bad the fire could be.

You might find this interesting...

LINK

If you've got a Nokia phone, it's also worth following the link off the bottom of the page...
David

iank - 5/9/07 at 08:18 PM

Metal fires are always bad, they get very hot and are difficult/dangerous to put out.

IIRC Most of the faulty laptop batteries were made by Sony and rebadged by Dell etc.

LiPo batteries are also bad if they go up!
http://www.youtube.com/watch?v=4OsBc8RqSKU

Don't think you can buy a mobile without a Lithium based battery these days.

David Jenkins - 5/9/07 at 08:26 PM

What also annoyed me, after some web research, was the way Li-Ion batteries lose capacity over time - about 20% per year, no matter how well you keep it charged. In fact, if you keep it fully charged, the total capacity reduces more quickly! Several source say that it's best to charge to around 40% if you want to store the batteries for any length of time. If you let the batteries get too warm, the rate of capacity loss is HUGE!

Wikipedia article

Look down the page for 'Storage temperature and charge' and 'Controversy' for more info.