I got a question?

[Rotary-Motion]

hey all hows it hanging, anyhooes

how does a car battery when charging it know when to stop at 12 volts, come to that any battery like nicads litium ion, remote control batterys etc?

I have been charging 2x batts in me front room (shed) and while watching tv looking at the batts hows that work then?

I know the charger is usually higher volts than the batt its charging like 15 for a car batt.

come to that how does a car batt get all those amps in there too, you can have 2x batts both 12 volts say with very far apart amps scale, like a car batt and a drill battery.

[Rossey]

It's due to the chemical reaction, it can't react anymore.

Think of it like a ballcock in a water tank, when it's full it can't take anymore.
But battery's are normal 13.5 volts

The amperage is down to how the cells are setup inside.

[Tony]

When it's full and you carry on forcing power into it, that's when the cells start bubbling off hydrogen!

Proper lead acid chargers start with a constant current charge then switch to a float voltage when the current drops off.

[greasemonkey]

Err, umm, I know, but I can't explain it.........
Your amp hours is something to do with the size of the plates. Bigger AH batterys are heavier.

[Chug]

yeah but where does electricity come from? we move an iron core in a magnetic field and it appears like magic, but how, from where?

[Julian]

yeah but where does electricity come from? we move an iron core in a magnetic field and it appears like magic, but how, from where?

Oh, come on Chug ... every one knows "the answer to life the universe and everything" is 42

[Rotary-Motion]

thx guys

42? is that like car number plates adding each digit adds upto 13 and unlucky for some

 

[Tony]

It comes from the government electricity vaults to go in the wires, they only use it to track you.  And read your mind.

[Rotary-Motion]

big brother is electrocuting you

 

[greasemonkey]

There are still plenty of people round here who won't have anything electric in their bedroom, in case the devil comes down the wires in the night..........

[willbuild]

There are still plenty of people round here who won't have anything electric in their bedroom, in case the devil comes down the wires in the night..........

I had a girlfriend in the valleys, is that why she would tell me to turn the light out in the bedroom.

[greasemonkey]

There are still plenty of people round here who won't have anything electric in their bedroom, in case the devil comes down the wires in the night..........

I had a girlfriend in the valleys, is that why she would tell me to turn the light out in the bedroom.

I always wonder about women that wont let you have a good look........

[Rotary-Motion]

no harm in looking just don't stare hehe