Clock running slow - Junghans quartz

chrisw

A fibreglass pencil is really good for this sort of thing.

Mutton_Geoff

Clocks work better with the cheapest zinc chloride batteries. A quick Internet search will reveal why.

ThisIsWeird

Chomeur said:

Eldi_Dos said:

If you do need to have motor replaced it should not be too difficult or expensive for a watchmaker/ jeweller's to do.

I would try cleaning the battery terminals as well as using new batteries first though.

Thanks. Cleaning the battery terminals worked, although I had to use a file on them. They must have been really dirty/corroded. I'm still using the same rechargeable batteries as before.

I'd give the clock terminals a thin smear of either silicone grease or copper ease before reinserting the batteries and then spin them once in, to give them the best, sealed, contact.

ThisIsWeird

Mutton_Geoff said:

Clocks work better with the cheapest zinc chloride batteries. A quick Internet search will reveal why.

Interesting.
No real risk, tho', and I always use decent Alkalines as I buy them in packs, so wouldn't search out carbons for just my odd clock.
'Anti-leak', or possibly just solid 'use by' dates is an important feature, tho', as the batteries will be in there unattended for a good year+.

Mutton_Geoff

ThisIsWeird said:

Mutton_Geoff said:

Clocks work better with the cheapest zinc chloride batteries. A quick Internet search will reveal why.

Interesting.
No real risk, tho', and I always use decent Alkalines as I buy them in packs, so wouldn't search out carbons for just my odd clock.
'Anti-leak', or possibly just solid 'use by' dates is an important feature, tho', as the batteries will be in there unattended for a good year+.

Alkaline batteries life starts when they are first used, the clock uses so little power, the battery dies before the capacity has been used. Zinc chloride batteries don't suffer in the same way so perversely last a lot longer.

Alkaline a waste of money when many think bigger is better, in very low power consumers, it's not.

ThisIsWeird

Mutton_Geoff said:

ThisIsWeird said:

Mutton_Geoff said:

Clocks work better with the cheapest zinc chloride batteries. A quick Internet search will reveal why.

Interesting.
No real risk, tho', and I always use decent Alkalines as I buy them in packs, so wouldn't search out carbons for just my odd clock.
'Anti-leak', or possibly just solid 'use by' dates is an important feature, tho', as the batteries will be in there unattended for a good year+.

Alkaline batteries life starts when they are first used, the clock uses so little power, the battery dies before the capacity has been used. Zinc chloride batteries don't suffer in the same way so perversely last a lot longer.

Alkaline a waste of money when many think bigger is better, in very low power consumers, it's not.

Cool - I didn't know that. :-)