[LINK] Qantas bans Dell laptop batteries

[Adam Todd]

Yes as I said :)

That's a pretty cool document actually, mind you I've seen verbatum quoting 
of material in it elsewhere, bloody plaguists!

I love this line though (right coloum page 8)


In the worst case, over charging lithium
Ion batteries can result in sudden, automatic, and rapid
disassembly (explosion).


So I guess terr-or-ists in our modern world are after rapid disassembly of 
their targets?

Ohh look at the subject and the theory!

Damn Terr-or-ists they really do spoil our use of Lithium batteries!  Bout 
time 12 volt connections were on all seats on planes!


At 11:14 PM 24/08/2006, Geoffrey Ramadan wrote:
>Adam
>
>A good technical application note on Batteries and Smart Batteries can be 
>found at:
>http://www.intersil.com/data/an/an126.pdf
>
>Reg
>Geoffrey Ramadan
>
>Adam Todd wrote:
>>
>>Actually I'm more inclined to think it's not the physical cells used in 
>>the packs, but the circuitry within the battery pack failing.  A lot of 
>>"cheap" grade products have thermal snapping sensors to shut off charging 
>>when the battery gets HOT.  A Hot battery is not a guarantee of a charged 
>>battery and worse, if the thermal sensor carbonizes, which they do ....
>>
>>And even if it's not a snapping thermal sensor, even the little ceramic 
>>ones can fail badly if they get excessively hot too often and batteries 
>>go get warm to touch when charged for long periods of time.
>>
>>Without knowing the circuitry and how they have decided to charge, 
>>trickle and switch, I can't say much more.  I only know Powerbook, and 
>>some HP batteries.  The early compaqs were really bad news!  Toshiba's 
>>are all really good and IBMS are in my view are good too.
>>
>>
>>At 10:24 AM 24/08/2006, Howard Lowndes wrote:
>>>I think the problem is with the Sony batteries, and I doubt that Dell 
>>>are the only laptop manufacturer that uses Sony batteries.
>>>
>>>But I thought laptops had to go hold baggage anyway after the UK panic, 
>>>or have they relented on that?
>>>
>>>Kim Holburn wrote:
>>>>http://www.smh.com.au/news/biztech/safety-first-for-carryon-dells/2006/08/23/1156012601607.html 
>>>>
>>>>
>>>>>Safety first for carry-on Dells
>>>>>
>>>>>Qantas is issuing an advisory to all passengers on its flights on the 
>>>>>safe use of Dell notebooks following the recall of 4.1 million 
>>>>>batteries announced by the PC manufacturer last week.
>>>>>
>>>>>The airline said that although passengers would be allowed to carry 
>>>>>their Dells either as checked or cabin baggage, they could only use 
>>>>>them on battery power or through the aircraft power supply available 
>>>>>in some first and business class cabins once they have first removed 
>>>>>the batteries from the unit.
>>>>Something must have gone strange with that last sentence ummm... lets see:
>>>>They can only use them once they have removed the battery ... nope 
>>>>doesn't sound a lot better.
>>>>
>>>>--
>>>>Kim Holburn
>>>>IT Network & Security Consultant
>>>>Ph: +61 2 61258620 M: +61 417820641  F: +61 2 6230 6121
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>>>>                           -- Lloyd Biggle, Jr. Analog, Apr 1961
>>>>
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>>>--
>>>Howard.
>>>LANNet Computing Associates - Your Linux people <http://lannetlinux.com>
>>>When you want a computer system that works, just choose Linux;
>>>When you want a computer system that works, just, choose Microsoft.
>>>--
>>>Flatter government, not fatter government; abolish the Australian states.
>>>
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