"Ian.2" wrote in message
...
Thanks for all your replies!

The clock module has always had a 1.5v battery in it - the one I took out
says "AA/LR6/1.5V" and I've replaced it with the same type (always
Alkaline). The first battery I tried was brand-new out of it's packaging,
so was another battery I tried, before resorting to other part-used
batteries in frustration. Only the original nearly-dead battery got any
ticks out of the second hand of the clock.

The meter I use is a Philips thing designed purely for battery and lamp
testing, and it's been a reliable indicator of battery condition in the
past. My new batteries give a strong meter reading, the part-used ones
less
so, the dead one from the clock gives barely a flicker on the meter.

I'm wondering if it's a physical contact thing, although it *looks* ok. I
will try a test meter across the PCB end of the contacts later just to
confirm that there is proper contact with the battery.

I'll let yu know the result!

Ian



Could be a cracked solder joint on the PCB, so the new battery may not be
stressing it quite the same way and not making contact.