From: Isaac (Newton_at_spymac.com)
Date: Wed Sep 15 2004 - 14:12:33 PDT
> > By all the sled modification pages I see online no one has by my
> > recoleection shown an installation of a switch though I
> recall it was
> > suggested some where that it could be done. Isn't it the
> (2) contacts
> > on the bottom of the rechg packs that tell the newt it has rechg vs
> > alkalines installed? Am I mistaken?
> You are right, it is the two contacts on the bottom. But if
> you don't
> want to bother with a switch, you could just put a piece of electric
> tape over the contacts which will do the same thing. Not as elegant,
> but functional (and no one is going to see it anyway).
Dan,
this is not the case. With a short the Newton thinks the accu has a
temperature of 64 deg C an will not charge and with an open circuit it is
like the battery sled or, as I call it, battery tray. If successfully
modified some battery trays and mounted a small two-layer PCB with a
DIP-switch and a thermistor on one side and the two contact pads on the
other side. It is sort of detailed described here:
http://www.newted.dyndns.org/users/mmailand/www/Npages/Naccu/Naccu.html
I´ve also several times at this list offered to modify battery trays and
gave my address to some people but none wanted this modification so far. The
photographs on my website are from the prototype and the modification with
the PCB is carried out with a milling machine and looks more professional
too.
Marco
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