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The tip of plug for AC Adapter is very hot while charging the battery

I noticed that the tip of the plug for AC Adapter is very hot to touch while charging the battery.  Is that normal or not??  I wonder if there's something to do with a fan not working or need to be clean.  Please advise.

Thank you,

John P. Mackay
Belleville, ON Canada eh?

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'ur' not, "u r". 'serious' not, "cerious". I guess english is not your strong suit.

Posted on Dec 11, 2007

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Dear john
heating of adapter is not a big problem man......but take care of u r adapter.....1 st if there is not right flow of air...then clean u r adapter...and check u r fan properly..................
because over heating can make a cerious damage to u r system man..........

dont forget to tell me u r problem solved or not
best regards & best of luck..

Posted on Oct 26, 2007

  • SHIVAJI YADAV
    SHIVAJI YADAV Nov 05, 2007

    hey dude.....u did not make any repley....for u r problem solution ...

    hope it is solved.......
    Was this solution helpful? Show your Appreciation by rating it:
    pls vote for me man..
    best regards & best of luck..

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Few options: either the connection is "hazy" (try moving the plug in the hole), battery is fake or battery has been abused and is empty...

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Nc6000 multibay battery does not recharge


Perhaps remove the multi-bay battery, and let main battery charge all the way. Then reattach multi-bay battery, and see if it's recognized.
(Will charge)

That is AC adapter (Charger) removed, then remove multi-bay battery.
Plug AC adapter back into laptop, THEN plug AC adapter into power.

[You do Not want to unplug an AC adapter from a laptop, with the AC adapter plugged into power. Could be a power surge/voltage spike. Unplug AC adapter from power, when plugging into laptop, or unplugging from laptop ]

Main battery charged, unplug power to AC adapter, unplug AC adapter from laptop. Plug multi-bay battery in, then AC adapter.
(Then plug AC adapter into power)

Post back in a Comment.

Regards,
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My acer aspire 7720G shut down random


Wait a minute. What?

From what I read;
1) One wire of the AC adapter (Charger) is hot to the touch.
'.....when I touch the charge one part of the wire is very hot."

2) AC adapter checks out as far as voltage is concerned.
"I tested the charger voltage and everything is ok."

3) "Sometimes when I touch the charge appear the icon...Could it be the charger broken wire?"

Does this mean, "Sometimes when I touch the AC adapter (Charger), the battery icon appears."?

Battery is CHARGING icon?

Could it be a broken wire in the power cable TO charger?

Uh, yeah.

1) AC adapter NOT plugged into the DC Power Jack, plug the power cable of the AC adapter into power.

Multimeter set to DC Voltage, and proper scale, red Positive lead to harness wire that goes to DC Power Jack's center pin;

,black Negative lead of multimeter, to wire that goes to DC Power jack's inside cylindrical metal shell;

Now gently wiggle the cable from the AC adapter, TO the DC Power Jack of the laptop.

Do you get an intermittent reading?

2) Also, how did you replace the DC Power Jack? What steps did you take?

http://www.dcpowerjacks.net/catalog/index.php?main_page=product_info&products_id=1291

Did you reuse the wire harness, and solder it to the DC Power Jack?
Have a lot of experience in desoldering/soldering?
What tools did you use?

25 Watt soldering iron?
.025 or .030 rosin core solder?

Desoldering Tool, or Desoldering Braid? (Solder Wick)
Side Cutters instead, and slightly shortened the wires of the DC Power Jack's harness?
(Then tinned the wires, and soldered the wires of the DC Power Jack harness, to DC Power Jack?)

Damp sponge, and cleaned the well tinned No.2 chisel tip, of the soldering iron, frequently? Used rosin solder flux?

Center pin wire (Positive), of harness cable TO DC Power Jack, was soldered to the center pin of the DC Power Jack?

Negative wire of cable TO DC Power Jack, was soldered to the inside shell of the DC Power Jack?
(Cylindrical shell, inside the DC Power Jack, that surrounds the center pin of the jack)

Sure there are no cold solder joints?

Not trying to 'browbeat' you, just am curious.

1) IF you are SURE you have the polarity correct, of the wires in the harness cable, that goes to the DC Power Jack;

,and you are SURE there is no broken wire, in the cable from the AC adapter (Charger) TO the DC Power Jack;

,and you are sure you made good solder joints;

I suspect the power correcting chipset on the motherboard, to be bad, or perhaps a Diode.

One example of the chipset I am referring to. This one is used in a lot of laptops. May not be used in yours, but gives you something to refer to when looking for a bad chipset, in the power stage, on your motherboard,

https://docs.google.com/viewer?a=v&q=cache:oER5NNz8cwcJ:www.fairchildsemi.com/ds/FD/FDS6675BZ.pdf+Fairchild+FDS6675BZ&hl=en&pid=bl&srcid=ADGEEShOhWPjm_M-ROHme4iEMrztCTOd-28jNiy1hVLQQh_VOyv8zcXEVDB_iTQA6MuZO88UmRkDgjyW9j4CP2aIJ-4DS-h6JNM3lvxldeApQeecmz_DADCw1s7tmNLxfPknqX14SZP6&sig=AHIEtbS_rYUAeo_8rB9YHkW05ZjLqeH4Jg

Usually when bad the top of the chipset will be blackened, or bubbled.
A Diode is a one way valve for electricity. When they go bad it is visually obvious.

http://www.mouser.com/ProductDetail/Vishay-Semiconductors/BA479S-TAP/?qs=j6bfm3UnQnzfWUXqYnsQ9LdHLayQ%2fSwFGlGUXEDAB5w%3d

Post your findings in a Comment.
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What tip polarity do I use to connect an after market charger?


The short answer is "The tip should be set to positive (+).

I found an old Vector VEC127Y Spotlight. It appeared to be in perfect condition but the battery was dead and there was no charger. I was able to buy a replacement battery at BatteriesPlus for $21 USD. Here is the link for the battery
REPLACEMENT VECTOR VEC127Y BATTERY
I also purchased a Universal A/C adapter to use as a charger at BatteriesPlus for $17 USD. Their site does not list it yet but here is the manufacturers link. Please note the original battery was rated 6Ah. The replacement is only rated for 5Ah. Which means one less Amp hour (Ah). Which means a shorter run time, after charging, than the original battery had. Otherwise they are equal.
UNIVERSAL AC ADAPTER
I installed the new battery. I set the AC Adapter to 6V and installed the largest of the seven adapter tips that came with the charger, with TIP set to be positive (+). I opened the battery compartment of the spotlight and disconnected both the red (positive +) and black (negative -) battery leads from the battery. I then plugged the adapter tip of the Universal AC Adapter into the spotlight and plugged the AC Adapter plug to a power outlet. With a multimeter I tested the polarity of the spotlight battery leads while charging. I was able to confirm that the Adapter TIP should be set to positive (+). After reconnecting the spotlight battery leads and setting the AC Adapter to charge, I have a perfectly great spotlight in full working order.

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I have ac adapter plugged into the wall, and into the computer, the charge pack light is green, the battery is in the computer and the computer won't turn on at all


You probably have a bad or loose DC jack on the laptop:



Problem symptoms:

  1. Laptop randomly shuts down without any warning.
  2. Power LED and battery charge LED start flickering when you wiggle the power cord or the AC adapter tip on the back or your laptop.
  3. The battery will not get charged.
  4. When you plug AC adapter, the laptop appears to be dead and there is no LED activity at all (DC-IN jack on the system board is broken).


http://www.insidemylaptop.com/laptop-dc-power-jack-repair-techniques/

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HP Compaq laptop won't charge/power from AC due to blown fuse


Hi there,

There's plenty of causes why your laptop would not power up from the AC adapter and won't charge the battery. Here are some possible causes and solutions to this problem:

Number one, if it's on battery power, the battery is dead or the battery is bad and number two the AC adapter could be bad. Let's roll out number one.

1. Take out the battery, remove main supply, hold power button down for 30 seconds. This will drain the charges in your

battery. Put only power supply in, do not put battery in, turn laptop on, put the battery in.

2. If the solution in no.1 doesn't solve the problem, pull the battery out, keep the battery out of the laptop for this test.

Take your AC adapter and check the voltage with a voltmeter. What you want to test for is voltage. Put the meter at 20

volts DC and take the tip, the power jack tip of your AC power adapter. You hold the black, (the negative part) of your

voltmeter on the outside of the power jack tip of your AC adapter and you put the red (the positive part) of your voltmeter

in the hole in the inside of the power jack tip of your AC adapter. Be very careful not to touch the red and the black part of

your multimeter and the power jack tips of your AC adapter together, otherwise it will create a short circuit.

After doing these procedures, if your AC adapter is good it will output a voltage which ranges from 18 to 19V DC on your

voltmeter, depending on the voltage that puts out on your AC power adapter. If your voltmeter doesn't show any voltage,

probably your AC power adapter is bad or damaged. But if your voltmeter shows up voltage, then we have to go to the

next possible cause why your laptop won't power on.

3. The dc jack on your laptop might be bad, if the dc jack on your laptop is bad or not making a connection to the

motherboard then it look the battery is bad as well, because the battery is now not holding a charge or even taking a

charge. Also, even if your AC power adapter is good and when you insert it to the dc jack in your laptop it could not power

up the laptop because the dc jack is not making a connection to your laptop motherboard in other words the dc jack might

got loose, that's why it's not making any connection to the motherboard. The only way to solve this is that you have to

disassemble your laptop, and take the laptop motherboard out and look where the dc jack is connected. After you found it,
take a file tool and file off a spot on the motherboard where you can reattach the power jack and use a wire to reattach

the power jack to the motherboard.

Hope you find this answer helpful. God bless.

http://compunics.blogspot.com/2010/06/podnutz-high-definition-laptop-repair.html





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Today my cord for my toshiba was behind my pillow and i was lying on it. and I didnt notice, but then it showed that my laptop wasnt charging did my cord just get too hot? will it work later?


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Try leaving the power adapter unplugged for about ten minutes.
In the meanwhile also remove laptop battery and put it back.
Connect it back to AC and laptop.
Ensure that connection to laptop and power cord connection to AC adapter box are both well plugged.
Before turning on laptop leave it connected for few minutes.
If laptop still does not turn on and battery does not charge, then the AC adapter is faulty.
A further test can be done using a multimeter to read voltage on AC adapter plug.

A replacement AC adapter is not expensive and can be purchased online. Try entering in Google your Toshiba model followed by the words "power adapter".

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ZHow do I charge battery (new user)


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silvio

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1 Answer

Compaq Presario 1200 won't charge battery


dear N9YK

you can follow this

If you have a loose connection where you plug in the power on your laptop, or it works intermittently, you could have a bad dc jack. Symptoms
  • Move the power plug and the laptop loses connection
  • Broken or cracked dc jack
  • Laptop won't charge but worked on battery
  • Power LED and battery LED flicker when the adapter tip is moved
  • Battery won't charge
  • Sparks come out the back of the laptop
Why does this happen?
  • Flaw in manufacturer designs
  • Use of universal or non-original ac adapter
  • Lots of plugging and unplugging of the ac adapter
  • Tripping on or pulling the ac adapter cord
or you can check your dc amper in your adaptor

oke



thx

cropp

Mar 16, 2008 | Compaq Presario 1200 Notebook

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