Graeme wrote:

In the meantime, if I leave the PC on, will the internal battery charge,
or is it not rechargeable? PC has probably not been booted for 20
years.

They were mostly non-rechargable button cells but I did have one that
had a rechargeable battery. Not usually too difficult to replace,
just take a look inside at the motherboard and it should be pretty
obvious.

--
Chris Green
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