Old Zenith luggable

From: jpero_at_cgo.wave.ca <(jpero_at_cgo.wave.ca)>
Date: Mon Dec 29 08:39:10 1997

> i have recently been given an old Zenith laptop model ZFL-181-92. batteries
> discharged or dead. no power supply. i would like information if anyone
> can help me on what type of power supply to use. the label on the bottom
> of the systems says: DC 12 V, Plug-in power supply Model 150-272.
>
> i'm hoping someone out there has one of these puppies and can tell me the
> power rating and polarity spec's (the power jack is not marked as to which
> pole is positive). i haven't cracked the case open yet but am interested
> in more information on this system if anyone can educate me. i think this
> is an old 8088-based box? it has no hard drive but does have dual ("pop
> up") 3-1/2" drives (someone has written "720" on them so they're presumably
> 720 k drives). i wonder if this will run a generic DOS?
>
> any help appreciated. tx.
>
> - glenn
Glenn,

This is very trival to find between 12v and 13v sources at least 1 to
2amp DC. Polarity, dunno because I had mine stored but others
could answer this. Do favor for us, disconnect that bad battery!
Someone left the bad battery connected too long, ruining a spot near
power switch where the charging regulator got too hot in mine. When
rebuiding a pack, either sub-C or C (C is better and you can remove
pair of spacers found in battery cavity of your luggeable. (it's
stuck on with double sided tape, they're there to prevent the sub-C
from rattling around too much.)

Cut open the old pack, save all and silver thingy, that's
resettable thermal cutout switch, wires and connector, taking care to
keep the original circuits intact, dispose the old cells at recycler.

Sub-C is appox 2/3 shorter in length of a C cell size. The mAh
rating determines how long you can keep things going before the host
machine dies from weak working battery. Sub-C is about 2K mAh max if
you can hunt for it or C about 2.8K to 3K mAh. Rechargeables are
always expensive except for sealed gel lead-acid batteries (loads of
mAh but pealty in weight/bulk!)

Jason D.
Received on Mon Dec 29 1997 - 08:39:10 GMT