"Steve" wrote in message ...
We have a solar powered alarm clock which automatically synchronises with the terrestrial time signal. The clock is marked
'PRECISION', 'SOLAR POWER' and 'RADIO CONTROLLED'.

The display became faint and eventually it stopped working. I took a look inside. There was an unmarked AA size battery (leaking
blue liquid which I cleaned up). I measured the battery's voltage which was 1.6V, well above that of a normal rechargeable
(1.2V?).

I presume the battery is the source of the problem. I tried replacing the battery with both rechargeable and non-reachargeable AA
ones, but the unit still didn't work.

I suspect that the original battery was much more than 1.6V - maybe 3V? But I can't find any references to
rechargeable AA-sized 3V batteries. Can anyone suggest where to get a replacement battery (or other ideas)?

Cheers.

Any sign of damage to the PCB from the leaking electrolyte?

I think you are reading too much into the 1.5 terminal voltage with no load.

--
Graham.

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