"PeteS" wrote:

The link I provided above is a charge controller I am using. It pulses
the output to 'detect' a battery (see if the voltage rises between
pulses). It also provides for a thermistor in the battery pack (the
ones I have utilise a Panasonic NTC, nominally 10k at 25C). On that
note, you should not try to charge a Li+ below about 0C or above 45C.

Li+ battery packs could have the charge controllers on board, but they
would be specials. Most packs come with the NTC and nothing else.

Cheers

PeteS

Thanks all. I'll soon know for sure whether it's a simple or complex
charger, as I'm determined to open it soon. Meanwhile I'll experiment
with charging the identical extra battery I bought a year or two ago.
(Not such a cheapskate, Fred g.)

On my To Do List for a long time has been: 'Observe Sony charger
waveform'. That would have answered that point in advance of hacking
into the case - but regrettably never actioned! I strongly suspect it
*is* an intelligent charger.

BTW, the battery currently in the camera still has a charge, as it
successfully allowed me to transfer a score of recently-taken photos
and also take a few more.

--
Terry Pinnell
Hobbyist, West Sussex, UK