[reyesryder (OP)]

Hi,

In my garage there is this old wall clock that has been lying down on a shelf for many ears, with the same AA Duracell battery, not in operation, due to the 'dead' battery.  But I have just been to the garage and I heard this ticking sound.  To my amazement I discovered the clock had come back to life.  How could this be?

I removed the battery and put it back in but it didn't work then. The strip on the side of the battery says it's dead.  I tried it in another clock and it didn't work.

I don't know why, can anyone help me?

Thanks in advance!!!

[mrsmith2211]

Clean the contacs.

[evan_au]

The strip on the side of the battery says it's dead

Those strip testers apply a fairly low resistance across the cell, so that if it was marginal before, it will be dead now...

The clock draws a very small current by comparison, and a warm day might activate the battery chemistry enough to get the clock ticking for a while.

[vhfpmr]

Deja vu

https://www.thenakedscientists.com/forum/index.php?topic=81103.msg620803#msg620803

[Zer0]

Deja vu

https://www.thenakedscientists.com/forum/index.php?topic=81103.msg620803#msg620803

Brilliant Observation vhfpmr!!!
👍

So...is this some sorta spam for Dura Batts?
🤔

Ps - Rechargeables are the Future!