Do you know why the voltage of batteries is set at 1.5? Why not 1 or 5 or 10?

Answer 1

The chemical reactions used in most batteries naturally produce about 1.5 V.

Lithium batteries can produce up to 3 V.

Aloha

Answer 2

Hi. I'm not sure chemically why this is so but ALL cells seem to produce about 2 volts. A 12 volt battery has 6 chambers for instance. The voltage changes from nominal as the energy is used up.

Answer 3

The original "dry-cell" batteries produced 1.5 volts. They were usually ganged in series to produce 3, 6, and sometimes 12 V. As batteries were refined, it was necessary to maintain this output per cell to accommodate earlier circuits using this voltage, so 1.5V evolved as a standard for battery design. The 9V battery was virtually unheard of until after the transistor was invented. With the advent of logic circuitry using 5V for a design voltage came the need for a 5V battery.

Answer 4

It has nothing to do with math. It is a chemical property. Through experimentation, the best chemicals for electricity have been found, or at least they think so. Alkaline actually produce around 1.6 volts without a load. Lead acid batteries actually produce around 13 volts without load. As the battery ages or is used, the available voltage drops. But it really is a chemical property. It is fixed. A 1 volt battery can be approximated, but it makes more sense to use the better 1.6 volt battery, cell, and electronically or electrically drop the voltage to the desired level.
http://www.howstuffworks.com/
You can do a search for batteries or cells. Technically batteries are a group of cells. Cells are individual sources of electricity. Common language means that we buy and use cells that are incorrectly called batteries.

Answer 5

The battery voltage is determined by the electrode materials and the electrolyte used. sticking a nail and a penny in a lemon makes a different voltage than zinc and carbon in an amonium chlorate solution.
See here for more info:
http://www.howstuffworks.com/battery.htm

and Here too:
http://www.powerstream.com/BatteryFAQ.html
Hope this helps

Answer 6

the average sulfur compund in n alkaline batterie can produce only 1.5v but devices that require these batteries don't really need much energy but now that we made so much the reason that they are so weak is so we don't overload the device (short circuit)

but 9v batteries are just batteries with 6 cells inside
with each cell containing 1.5v do the math and it all adds up