Duality of men.

got clock that works on wall plug no need change battery kah?

mostly digital clocks.. like used in suraus and masjids

Sendiri solder wires to AC adaptor. The thing is , power outage will make your clock stop functioning. Then when power resumes you have to set the time again

This post has been edited by k!nex: Nov 21 2023, 09:32 PM

Different voltage. Rechargeable battery 1.2v variable, others (zinc or alkaline) 1.5v

For low drain like clock, best to just use zinc battery

Someone told me alkaline not good for clock, is this true?

not worth the hassle and investment cost

never heard of something like that, alkaline last longer, start with much higher voltage, and can store more charge, as long as you dont consume it(unless you android or cyborg), i dont see its downside.

I use Ikea rechargeable battery for the Ikea clock also. No issue.

Cause chemical leaking.

That's not really true.

And that article sounds like a lot of made up nonsense.

My Seiko wall clock last forever using Zinc Carbon batteries.
The engine using real Seiko one.

One time I decided to use energizer, that was the end of it.
Had to change the engine to those cheaply Seiko stuff that is on the newer models.

I think normal zinc battery is recommended and sufficient for quartz clock movement.
Alkaline battery is an overkill or might even cause damage due to high current draw. Those are more for high current application such as RC toy cars with motor drive.
Just like using RON 97 petrol for old Saga/Iswara. Just waste of money.

nah, a good circuit will limit current flow, wont be like when fuel max, car run faster, when fuel low car run slower.

No circuit is impervious to variations.

In digital, its less of an issue because we've engineered a lot of things to handle those variations (e.g. error correction codes)

In analog, you're more susceptible to such variations.

then means this clock is sampah.. for a 1.5V battery can use until 1.2V only.. than like around 50% of an alkaline battery capacity. meaning when the clock stop running, u put the battery into say a remote, it is likely still usable.

do u think this cheapo clock which can't even work with 1.2V rechargeable NiMH battery have a voltage regulator circuit to limit the current flow?

was comparing alkaline with rechargeable, battery to battery, from what i know it can be done in a very tiny soc, lets say regulate all incoming voltage more than 1.0v to 1.0v, so you put in new battery 1.6v or rechargeable 1.2v all regulate to 1.0v first b4 the chip start functioning. so as long as your battery still have charge more than 1.0v, will still work.

when do u throw away battery? when it can't power up a remote? when it can't power a clock? what device can run with the weakest battery?

Just use phone.