How a Battery works

[Orion21]

Following on from my other electrical thread which seemed to spark a bit of a debate. I am now wondering about a battery, again just out of curiosity.

I understand that electricity flows because of potential difference in voltages between the positive and negative ends of the battery with the positive having the higher voltage. Also I understand that electrons are negative and would therefore flow out from the negative terminal to the positive terminal when a circuit is made.

But which way does current and charge flow in a battery circuit? I.e. from positive or negative or vice versa?

 

[CorrectHorseBattery]

DO NOT PUT MOUTH ON IT. k.

 

[mrk]

Everything is answered in this video narrated by some bloke

 

[Limpnoodle]

Batterys work ok just dont meet the top with the bottom, or else boom
aslo dont stab em

 

[Philtor]

Smoke alarm battery - put your tounge on it and all will become clear.

 

[Twirlywoos]

Here

 

[Limpnoodle]

Smoke alarm battery - put your tounge on it and all will become clear.

Hehhe

 

[Limpnoodle]

Real life story from reddit ,
https://www.reddit.com/r/legaladvice/comments/34l7vo/ma_postit_notes_left_in_apartment/

 

[john_s]

Smoke alarm battery - put your tounge on it and all will become clear.

I used to work with a guy who would check if a PP3 battery was worth using or not by touching his tongue on the terminals!

 

[robgmun]

As i kid i used to touch my tongue on the terminals all the time, they just tasted a bit tangy and that's it.

 

[Cosimo]

I used to work with a guy who would check if a PP3 battery was worth using or not by touching his tongue on the terminals!

Done it on many an occasion. Why use anything else when you have a built in tester.

 

[Clarkson]

In regards to flow of current, ACTUAL current flow is negative to positive yes, but CONVENTIONAL current flow is positive to negative. So you might come across that.

 

[Mat]

...seemed to spark a bit of a debate.

This guy... this guy right here.

*slow clap*

 

[RetiredGreyFox]

Done it on many an occasion. Why use anything else when you have a built in tester.

It doesn't work though.
many a time a battery would fail in a guitar pedal so you take it out, test it on your tongue, get a jolt but it isn't charged enough to power the pedal.

 

[DJMK4]

It makes powah