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does the *.**a or ****ma on laptop power adapters refer to amps?
more to the point, does that number matter for functionality? for example, if i have an HP that wants a 19v 2.4a power adapter, wont a 19v 3.16a power adapter work still? isnt the only thing that effects is battery charge speed??
thanx
HP Vectra VL400
1.0ghz Pentium 3
512mb PC133 SDRAM
120gb 7200rpm 8mb cache WD1200JB hard drive
ATI Radeon 9200 128mb AGP video card

The laptop batteries are designed to charge at a certain amperage.
Your idea wouuld probably work but,
overheat and add stress to the battery
designed to charge at 2.4amps.
This is not from a google search just seems practical.Someone will probably correct me.

The voltage
the type of voltage--AC or DC
the polarity at the connector + or -
must be the same
the AMERAGE (A) or milliamperage (ma) must be AT LEAST as large at the power supply as the laptop requires. There are internal regulators for the battery charger. A higher current ration will not hurt a thing.

I agree with Name. The laptop should have a circuit to charge the battery at the right rate.
Do yourself a favor BACKUP!
Sorry, I do not check for private messages

Thank You :name and ham30.I enjoy learning new things.
The dragon beast should rest well
tonight.Right Brendan- LOL
Best to everyone.

Well...
If the current regulator is in the power supply, you run the risk of ruining the battery with a non-standard replacement PS.
=====================================
If at first you don't succeed, you're about average.M2Go

well it is an HP power adapter just not the one for that particular machine. came off a differant model omnibook.
thanx all.
HP Vectra VL400
1.0ghz Pentium 3
512mb PC133 SDRAM
120gb 7200rpm 8mb cache WD1200JB hard drive
ATI Radeon 9200 128mb AGP video card

That's what I assumed you meant. There are additional regulators and circuitry in the laptop (and in the battery, on Thinkpads) that control charging.
Using OFF BRAND power supplies is indeed a dicey matter.

Folks,
Dragon306 is certainly asking aq lot of quiz in anticipation of his going into business selling his "stock computers." Would you buy from him?
i_XpUser

I think I would wait a few years, XP. :-)
Do yourself a favor BACKUP!
Sorry, I do not check for private messages

"Would you buy from him?"
Heh - not in this lifetime - those neurons just aren't firing
We've heard that a million monkeys at a million keyboards could produce the complete works of Shakespeare; now, thanks to the Internet, we know that is not true

No,but he will have plenty of economically strapped people who will.
I remember my first used car a 63 chevy impala for 30.00 dollars and a portable B&W TV I bought from an old lady in 66 when I was 15 years old.
Wait a minute hummm,never have had that good of a deal again in my life.
Now Dragon if you could just be an old lady
and sell cars who knows.

I remember my first used car.
It was a 63 chevy impala it cost me 30.00 dollars and a portable B&W TV.
I bought the car from an old lady in 66 when I was 15 years old.
Sorry about the 3 mile sentence in response
12.That is how I really talk.

The "a" is amps, the "ma" is milliamps (although they should have been written A and mA) - Mr Ampere might turn over in his grave.
There is often a misunderstanding about Amps. Amps are the current drawn by the load. Having a PS with a higher Amps rating does not somehow "force amps into a system" (as implied by #1). In this respect Dragon306 is correct. A PS with a higher amps rating is fine. If it is too low you could run into problems.
DerekW

My first car was a 48 Chevy for $30 LOL.
For extra credit, what is the definition of an Ampere?
=====================================
If at first you don't succeed, you're about average.M2Go

I=E/R
I = amperes
E = voltage
R = resistance in ohmsDo yourself a favor BACKUP!
Sorry, I do not check for private messages

.... which in terms of my #14 means that you only draw more Amps from a PS by either increasing the applied voltage (overlocking maybe) or lowering the resistance of the load circuit (adding more gizzmo's to the load).
The Amps given on a PS refer to the maxmimum current you can draw from it (its capacity). It doesn't mean that a higher amperage PS will increase the current drawn by the load.
Sorry Street1 if I'm now kinda labouring the point.
DerekW

Another great comparison, since we are speaking in general of low voltage, is automotive systems. The auto battery can deliver hundreds and hundreds of peak amperes, but if you hook some little, piddly pilot lamp that only draws, say 250 ma---a quarter of an amp, then that's all it will draw.

Sorry Street1 if I'm now kinda labouring the point.
That's it we need a labour union!!!
I am really happy my electric bill is not based off my theory in response 1.
I have been corrected by the master{ jboy }
Derek I am now immune to small kicks and wounds.corrective criticism is always best took at face value.
Dragon needs to learn that but, it will be fun as hell until he does.LOL

Street1
No kicks intended. Just that subsequent posts kept hitting my "go" button again. You know, putting it another way blah blah.
DerekW

Hi Derek,
Well, it's a good thing I checked the Wiki link.
I thought I remembered a coulomb as 6X10^28
It's 6X10^18
But hey, what's a factor of 10^10 among friends.
=====================================
If at first you don't succeed, you're about average.M2Go

How the heck did I drift into this thread???
Response 14, 17, 18, and 19 all win the weekly Sunday dandy answer prize from me. Y'all get a good used P133 processor.
Just toss yur mailing addresses toward skip@skipcox.net
Hoorah!
Skip

SkipCox
As I'm one of the contenders, will it fit my 486 upstairs? Also have you a large HD, such as 500M? That 270M HD is now over half full.
DerekW

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