I hesitate to mention this idea, but I have found a cheap source of spare
batteries for my MZR90, which will probably fit other models and makes too.
Bear in mind that most stages of the process I describe are hazardous.
I was given a faulty Motorola NiMH cellphone battery. I broke it open and
took out 5 cells, which have the same cross section as a Sony NH14WM
(16.5*5mm), but are shorter: 46.5 mm instead of 65.5 mm. As is usual with
this type of battery, one of the cell had gone short circuit, and the others
still measured ~ 1.2V, so I decided to make the duff cell into an extender
to make one of the others the right length. I sawed off the bottom 19mm of
the duff cell, and drilled out the electroyte, which came out as a black
powder. I then soldered this section onto the end of one of the other cells,
using a 100W iron - this is quite tricky - the solder does not want to
stick, and it was hard to get the alignment right.
The new, extended cell has only about 1Ah capacity, against the 1.4Ah of the
original, but is much neater than the screw on external AA cell holder, and
can be carried in the little plastic box that the original cell came in.
I also have a Mk II design, in which I solder two pieces of springy steel
onto the sides of the "extender", so that it will clip on to any of the
cellphone cells. These cells can then be charged in my normal AA recharger,
as they are a similar length (actually 2mm shorter, and about 3mm wider).
Experience seems to indicate that NiMH/NiCd cellphone batteries don't last
very long, we have a pile of them at our office, so it should not be too
hard to get one to strip.
WARNINGS:
1) A dead battery pack can contain fully charged cells which can deliver
heavy currents (I melted my living room carpet this way).
2) The contents of a cell may be toxic (especially NiCd), and if there is a
residual charge, you may melt the tool.
3) It's not safe to solder to rechargables - they get HOT in the process.
4) When you file off excess solder, the filings contain lead, which is
toxic.
5) Using a Frankenstein cell may invalidate your warranty.
simon
> -----Original Message-----
> From: Simon Gardner [mailto:[EMAIL PROTECTED]]
> Sent: Monday, May 01, 2000 6:14 PM
> To: [EMAIL PROTECTED]
> Subject: RE: MD: Li-ion Gumstick Battery for MZ-55?
>
>
>
> > I lost my MZ-r55 MD battery and remote and I am clueless on what
> > to do. Ive
> > heard wonders about the Li-ion batteries. I was just
> wondering if they are
> > available for the MZ-r55 and where can I get the gumstick
> > batteries. Anyone
> > know where I can get a cheap remote?
> > pelase help thanx
>
> Minidisco sell the batteries (Sony NH14WM) for $23.95 + s/h
>
> http://www.minidisco.com/miniorderacc.html
>
> Superfi (www.superfi.co.uk) sell them as well, for about
> 10ukp + s/h.
>
> The remotes are trickier - either expect to pay a lot for
> a Sony-supplied
> one or try to get one secondhand (possibly from someone
> with a broken
> unit?).
>
> --
> Simon
>
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