From: liz@poppyrecords.invalid.invalid   
      
   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.   
      
      
   --   
   ~ Liz Tuddenham ~   
   (Remove the ".invalid"s and add ".co.uk" to reply)   
   www.poppyrecords.co.uk   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)