Hi;

I've just bought a Sony MZ-R37 portable, which I'm perfectly happy with in
all but one area - battery life, of course. The unit comes with two Sony
NiCd rechargable batteries which charge in the unit itself - and Sony's
manual states that no other rechargable other than Sony's ones should be
used.

Now, a Melbourne electronics store called Jaycar (www.jaycar.com.au) has
NiMh AA-sized batteries for sale for about $4.50 each, which to me looks
like a good replacement for Sony's NiCd offering - larger capacity, less
memory effect, etc. What I'm wondering, though, is:

* Is there something particularly special about Sony's supplied batteries
that makes them different to normal rechargables, therefore explaining the
"warning" in the manual?

* Given that the NiMh batteries have a larger capacity than the NiCd's, can
I charge the NiMh batteries safely in the MZ-R37?

And, of course, would I get much benefit battery-life wise by using them?
If I recall the NiMh batteries in question (generic ones, incidentally)
quote a 1300MaH capacity (the full specs are on the Jaycar site)?

Thanks in advance to any battery experts with answers :)


- Anthony

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