Date   : Tue, 25 Aug 1992 03:11:38 GMT
From   : usc!rpi!usenet.coe.montana.edu!nntp.uoregon.edu!cie.uoregon.edu!davecole@uunet.uu.net (Dave Cole)
Subject: Re: Epson PX-8 batteries

In article <1992Aug24.014252.24607@mintaka.lcs.mit.edu> regnad@hal.gnu.ai.mit.edu
(Paul Prescott) writes:
>
>I just replaced the original 1100 mAH battery pack in my PX-8 with one rated
>1600 mAH.  I figured the increased capacity would be quite useful.
>Unfortunately, the new pack fails to fully charge, even when left charging
>for up to 18 hours.  Have any other PX-8 owners experienced anything similar?
>Also, does anyone know if the PX-8 needs to be modified to charge the
batteries
>at a higher rate?  I know that charge rate is related to capacity.
>
>Paul Prescott
>regnad@gnu.ai.mit.edu


Paul,
 
  Having owned a PX-8, I understand your reasons for replacing the batteries.
I have also replaced them in my machine.  I was able to get them to a full
charge by letting them sit for over 20 hours.  They should charge to full,
just takes longer.  Leave them on charge till they get a bit warm.  Keep 
track of how long it took for them to warm up a bit.  That is the time you
DO NOT want to exceed.  If they are still not charged, then the RS-232 port
may be turned on.  It stays on until turned off.  If you run MEX and fail
to kill the 232 port, the Ni-Cads, never reach full charge, because almost
no software turnes off the port.  It's in the book somewhere, but alas,
I have sold mine else I would look it up for you.

Dave