View Single Post
  #12   Report Post  
isa --
 
Posts: n/a
Default

On Thu, 12 May 2005 18:08:31 GMT, "NSM" wrote:


"isa --------{@" wrote in message
.. .

tried just now ddp at phone's contacts removing battery pack
(I plugged in the charger) I measure 4.07V between + and -
and 4.07V between - and center contact. In the battery pack
the mid contact is linked to - contact via a 10K smd resistor,
it's probably a PTC to check battery temp I guess.


I'd have guessed a fuse - if it's a PTC it should be almost zero ohms.


a fuse with 10Kohm? I don't know really, but usually cell batteries
have a thermal something to cutoff the charger if heat up.