Why 13.8 V not 13.7 or 13.9?

[JackShephard]

I don't know about that.I guess it depends who you are.

There are more than a few folk who would be pleasantly surprised if
your battery went BOOM!

**** off, adolescent retard.

 

[Samantha Pierce-Harder]

**** off, adolescent retard.

What a dreadful man!

Are you in the habit of teaching adolescents to swear?
It strikes me you need a close eye keeping on you.

Are you on probation or parole of some kind?

 

[[email protected]]

What is the votage of the battery in a car? 12 V right?

Then why is Cigar-Lighter Adaptor 13.8V ?

Also, how the 13.8 (not 13.9 or 13.7) V is derived?

-- Harry

Right, but it's not that simple. They are called 12 volt batteries
because they have 6 cells that operate at close to 2 volts each for to
explain the 12 volt nomenclature used. Are they exactly 12 volts -
no. The chemistry used determines the voltage seen, and the chemistry
used changes slightly as the years go by. The trend is upwards in the
last 30 years but only by a few tenths of a volt.

I have no clue as to which or what Cigar-Lighter Adaptor you are
referencing. In general terms though, the 13.8 volt level would be
referring to the engine running, battery charging voltage levels which
vary quite a bit depending mainly on alternator temperature, from
14.75 to 13.3 volts. It is supposed to vary according to battery
temperature but doesn't just for an example of the not so perfect real
world.

Your questions deal mainly with semantics and absorbed double talk,
don't get your feet fouled up in that stuff as it's pretty nasty stuff
to normally be avoided.

 

[Lamey The Cable guy]

What a dreadful man!

Are you in the habit of teaching adolescents to swear?
It strikes me you need a close eye keeping on you.

Are you on probation or parole of some kind?

I have lots of info on him if you wish.

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<working on one of them specheel AUK awards>

 

[JackShephard]

What a dreadful man!

Are you in the habit of teaching adolescents to swear?
It strikes me you need a close eye keeping on you.

Are you on probation or parole of some kind?

You, and your assessments are nearly as retarded as the idiot I was
beating down.

Take a hike, twit. (You gave yourself away, sock puppet, with your
retarded follow up).

 

[neon]

car battery voltage is never 12v 13.8v or anything like that. depends on the manufacture how old it is temperature and many more factors. when starting it may sink below 8v so what is the car battery voltage anything that it can be and will be. 12v signify a change from th old 6 volt system. after driving for a while my battery is 16.3 next day is 15.7 next month without driving it will be ~10 v so what about your 13.8v you tell you.

 

[Boris Mohar]

Meat Plow wrote:



At what temp? (K, C, R, F) chose one, then define concentration of acid
in ppm and purity of solvent, then give us a number(s).

Do I hear anything???

Have fun

Stanislaw.

2.25 to 2.3 Volts per cell at 25°C
http://www.powerstream.com/SLA.htm

 

[Ken]

13.8V / 6 cells = 2.3V / cell, the nominal 'on charge' voltage.

Depends on temperature.

 

[JackShephard]

Depends on temperature.

And cell status. ie specific gravity of each.

 

[Lamey The Cable guy]

You, and your assessments are nearly as retarded as the idiot I was
beating down.

"beating down" ?????


BWAHAHAHAHAHAHA!!!!!!!!!!

Take a hike, twit. (You gave yourself away, sock puppet, with your
retarded follow up).

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<working on one of them specheel AUK awards>

 

[Lamey The Cable guy]

Liar.

Claim of illegal activities with regard to me and my privacy noted, and
archived.

Gonna get you, boy. Jail is not a pretty place, and you won't be well
received.

Heard that threat before, Nothing!!!

I have all I need to expose you.

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<working on one of them specheel AUK awards>

 

[James Beck]

Depends on temperature.

Now all they need to do is make that sticker change its' value based on
the temperature......

I think we have strayed from the simplest answer to the let's split hair
answers.

Jim

 

[Jasen]

What is the votage of the battery in a car? 12 V right?

no. it's only called a 12V battery

Then why is Cigar-Lighter Adaptor 13.8V ?

Also, how the 13.8 (not 13.9 or 13.7) V is derived?

itr's connected to the battery.

typical voltages range from 13.5 to 14.4,

but sometimes (rare events) it'll be less than 10V or more than 40.

 

[JackShephard]

Now all they need to do is make that sticker change its' value based on
the temperature......

I think we have strayed from the simplest answer to the let's split hair
answers.

The question asked by the OP WAS specific, idiot.

Talk of cell chemistry AS WELL AS thermal considerations IS part of why
that voltage was chosen.

So it is NOT "splitting hairs".

 

[MooseFET]

no. it's only called a 12V battery



itr's connected to the battery.

typical voltages range from 13.5 to 14.4,

but sometimes (rare events) it'll be less than 10V or more than 40.

Less than 10V can happen when you try to start the engine. It isn't
that rare.

 

[Zach]

Heard that threat before, Nothing!!!

I have all I need to expose you.

Is this sheepherder shitforbrainz a netKKKop? I think I had sex with
his old lady last night. Really sucked.

--
Zåçhårîåh Tôr||§kî,
Monkey Trainer Extraordinaire

#1 Lamey's Lits of Cool Posters for wit and charm.

I love the smell of armpits in the morning, its like victory.

I can still rock like a son of a bitch.

Ozzy

You have to be trusted by the people that you lie to.
So that when they turn their backs on you
You'll get the chance to put the knife in.

PF - Dogs

If we annoy it enough, it'll make a mistake.

What's the difference between australia and yoghurt?
After 200 years culture will have developed in the yoghurt.

 

[AndyS]

[email protected] wrote:
In general terms though, the 13.8 volt level would be

referring to the engine running, battery charging voltage levels which
vary quite a bit depending mainly on alternator temperature, from
14.75 to 13.3 volts. It is supposed to vary according to battery
temperature but doesn't just for an example of the not so perfect real
world.

Andy comments:
mel's advice above is accurate, from my experience.

I keep a digital voltmeter on my car battery so I can see what the
charging system is doing.
In the winter, the terminal voltage at the battery, when just
starting out,
is about 14.5 volts. On a hot summer day, after everything heats up,
it is about 13.5 volts. The temp compensation in the alternator is
supposed
to track the battery terminal voltage, which changes in temp.
Naturally,
the alternator and battery never track perfectly, but it's a lot
better than
putting a hard 14.5 volts on the battery, as the charging rate would
vary
all over hell....

When the car has been setting overnite, and the space charge
around the
internal plates has disappeared, the battery voltage is 12.5-12.8
volts, or so,
when the key is turned on and before the starter is engaged. As soon
as the
engine fires, the alternator raises this voltage to the charging
level, above.

Having a readout of the battery voltage has saved me from several
breakdowns over the years as I could spot changes in the system
performance
which let me know the alternator had a problem ( bad diode, etc) long
before
the battery would go dead while out on the road...



Just my observations from many years of driving in summer and
winter,
and watching the battery voltage.....

Andy W4OAH

 

[Lamey The Cable guy]

Is this sheepherder shitforbrainz a netKKKop? I think I had sex with
his old lady last night. Really sucked.

Yes he is, He tried to kop me to Caputo, Chris just laughed at him.

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<working on one of them specheel AUK awards>

 

[Lamey The Cable guy]

I filed a complaint about a post made by an idiot that CLONED one of my
nyms.

ISPs don't care about cloning nyms, You netkopped and Caputo
laffed@JoO!

Are you telling us that it was you that goes around behind me, cloning
me?

Where did I say this? You're the netabuser here.

I never filed a complaint about YOU at all. I filed a complaint about
a post that some other idiot filed a complaint on me about which did not
originate from me.

Can you say the 3 times real fast with out fucking up?

So that was you?

Who was me?

And to think that you have been denying it this whole time.

That you netkop and flood groups?

YOU are the abuser, you retarded bastard.

Is it true the fags in rec.lottery.gambling spanked your sorry ass?


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Co-inventer of the "Prongtard Yap-Dog Award"

<working on one of them specheel AUK awards>

 

[James Beck]

The question asked by the OP WAS specific, idiot.

Talk of cell chemistry AS WELL AS thermal considerations IS part of why
that voltage was chosen.

So it is NOT "splitting hairs".

Sure it is.
How is his label going to change what it says?
Does it know the battery chemistry, does it know the temperature?
He asked a simple question and got a bunch of crap back that he didn't
need to answer it.
You REALLY do need to work on your online personality.
I'm sure you don't act like this in person or you would spend a lot of
time in the hospital. You CAN disagree with someone without spewing
forth insults. People do it everyday.

Jim