I Hope it´s not a stupid question...

[AlexGT]

If it doesn´t belong here I´ll remove it.

Can any of you explain why some batteries have 1.5V,1.7V,3V,12V, 22 volts etc.

I mean, how do you regulate the amount of voltage on a battery during the manufacture process, is it chemically regulated? any recommended liks?

Maybe I´m having a lot of spare time to think such things.

Thnx
Alex

 

[vcal]

They are just combinations/additions of single cells, since almost all individual cells only have nominal voltages of 1.5v or so.
-So, for those higher voltages, it's necessary to put the cells together in series to add up to 6v, 9v, 22v etc.
*2 volts for SLA
*3v.+ for Lithium (except for L91-AA)

-Edited a bit for clarity<

 

[ikendu]

The basic chemistry determines the voltage.

That's why batteries of different size have the same voltage (AAA, AA, C, D); same basic chemistry, same voltage, just different capacity (life and amps delivered).

 

[brightnorm]

AlexGT,

The only stupid question is the one you're afraid to ask

Brightnorm

 

[AlexGT]

Thanks guys!

Alex