Electronics > Beginners
please help me to understand why voltage is added in battery in series
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monmalmi:
please help me understand why voltage is added in battery in series ,and why battery in series not discharge each other because postive is connected to negative,thanks
Doctorandus_P:
The best way to learn is by doing, and this is among the simplest electrical experiments you can do. So grab yourself a few batteries and a volt meter and start connecting it in various way.

If you have 1.5V batteries (such as AA sized Alkaline)  and a 6V light bulb, or a LED with series resistor (100 Ohm will do) then you can also see the result of connecting batteries in series.
Zero999:
Just connecting two batteries in series doesn't cause them to discharge, because a complete circuit is required for current to flow and discharge the batteries.
Mr. Scram:

--- Quote from: monmalmi on January 27, 2019, 08:56:08 am ---please help me understand why voltage is added in battery in series ,and why battery in series not discharge each other because postive is connected to negative,thanks

--- End quote ---
Consider that voltage is always the relative potential between two points. This means voltages aren't absolute, but relative to whatever you're measuring against. So if you stack two batteries and put your common lead on the negative pole of the second battery you get the following.

                                        N
                                         |
(3V) +==-  (1.5V)  +==- (0V)

But if you put the common load in the middle you get the following.

                      N
                       |
(1.5V) +==-  (0V)  +==- (-1.5V)

Both are true, because the measurements are relative. It just depends on between which two points you measure. Now you'll hopefully understand you're stacking potential and why they are effectively added up.
monmalmi:
but my question is when you put battery in series we connect positive of one battery to the negative to the other battery then why they not discharge each other
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