5 Mar
1998
5 Mar
'98
4:25 p.m.
On Thu, 5 Mar 1998 20:11:39 +0000 (GMT), you said:
I've done that with my aged HP-21; cut the plastic battery pack open
and replaced the nicads. With my HP-38, the batteries were in a metal
holder and easily replaced.
_______________
Barry Peterson bmpete(a)swbell.net
Husband to Diane, Father to Doug,
Grandfather to Zoe and Tegan.
The battery
pack is just two NiCad AA's welded to a set of contacts. It's
very easy to fix this on your own - if you don't have a spot-welder
in your household, solder will do after you roughen up the battery contact
surfaces. (In the past decade I've gone through
a HP15C and a HP41, but it's the HP25 that I still prefer...)
All my HP20-series machines (woodstocks) have a metal spring in the
battery pack that presses the cells against the terminals in the
calculator. It will also connect a pair of normal AA cells together
without needing to spot-weld or solder them.
You can open up the battery pack, extract the old cells and fit some new
AA NiCds in their place. Take care to get them the right way round, of
course - at least one of my packs has the polarities moulded into the
case, though.