From: liz@poppyrecords.invalid.invalid   
      
   Jan Panteltje  wrote:   
      
   > >liz@poppyrecords.invalid.invalid (Liz Tuddenham)wrote:   
   > >>Bill Sloman  wrote:   
   > >   
   > >   
   > >[Lithium batteries    ....again!!]   
   > >   
   > >> More technically, they can go into thermal runaway - they have to get   
   > >> above 120C before they can do it,   
   > >   
   > >How does the sensor monitor every part of the battery?  A small defect   
   > >in a separator could easily heat up to 120C before the temperature of   
   > >the mass of the cell rose noticeably.   
   > >   
   > >   
   > >> so any sensible battery condition   
   > >> monitoring scheme can warn the user long before there much of a risk.   
   > >   
   > >Warning the user isn't much good, the battery technology needs to be   
   > >fail-safe not impending-fail-evident to the user.   
   >   
   > Do you have a smartphone?   
      
   No  Why?   
      
      
   --   
   ~ Liz Tuddenham ~   
   (Remove the ".invalid"s and add ".co.uk" to reply)   
   www.poppyrecords.co.uk   
      
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    * Origin: you cannot sedate... all the things you hate (1:229/2)