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Hi, my laptop crashes when the ac adaptor is plugged in yet it will charge the battery fine when the laptop is shut down.

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You can use the battery to start your laptop, it will crash, should be your laptop ac adapter is broken, I suggest you buy a new one here.

Posted on Apr 04, 2011

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Problem description: The laptop shuts off when AC power adapter is plugged in. The laptop works fine on battery power but as soon as you connect it to AC adapter, the laptop turns off.
Possible cause: 1. Power adapter failure.
2. Motherboard failure.
Possible troubleshooting steps and repair solution: First of all, test the power adapter. Make sure the adapter outputs correct voltage. It's possible that the output voltage is not correct and the laptop shuts down to prevent the damage. Test your laptop with another known good power adapter.
If the problem still exists, even after replacing the adapter, most likely it's the motherboard failure. Replace the motherboard.

Resource: Acer Laptop AC Adpaters

Posted on Mar 21, 2011

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While charging on AC works absolutely fine. But while discharging i.e. Running on battery, shuts down unexpectedly. The same also happens when the the AC adaptor is plugged out at random. Lastly, the...


If thelaptop battery is more than 3 - 4 years old then the battery could be worn out.Rechargeable batteries have a finite number of charge and discharge cycles andwill lose their charge capacity over time, i.e. won't charge to 100% andgradually the charge reduces until the battery won't charge up at all. OR Thebattery shows a 100% charge but when the adapter is disconnected the batterydrops off to zero capacity in a very short time. If the battery drops to anunacceptable charge level then the battery needs to be replaced.

Aug 10, 2011 | HEWLETT-PACKARD ProBook 4520s

3 Answers

Says plugged in not charging


Take out the battery and make sure you can turn on the laptop with just the AC Adaptor hooked up.

If you can then you know the AC Adaptor is good. Try another known good working battery in the laptop, if the battery charges then you know that the old battery is bad.

If the laptop doesn't charge with a know working battery or a new one then you know that the motherboard is bad.

Aug 19, 2009 | Acer ASPIRE 3680-2022 Notebook

1 Answer

Acer Aspire 2920 won't turn on, although plugged in with battery


First of all, what I'm about to tell you are general troubleshooting techniques - I make no claim that they will fix what you describe, but they may help lead you to a solution.
  1. Unplug the AC adapter and remove the battery
  2. Plug in the AC adapter and attempt to power on the laptop
  3. If it doesn't power on, see #6 below. If it does power on, but doesn't boot the OS, restart - pressing [SPACE] as the first Windows splash screen appears. When prompted, choose to delete the hibernation file and start a system boot.
  4. Shut the system down, disconnect the AC adapter, reinsert the battery, and attempt to power the laptop. If it doesn't start we know, at the very least, there's a battery problem.
  5. Plug in the AC adapter. If it shuts down immediately, or won't power back on after a shutdown. . .
  6. . . .there's a problem with the system board, probably the ciruitry associated with charging the battery.
I hope you 'see the light'. Good Luck!

Jun 15, 2009 | Acer LXA3706003 Notebook

1 Answer

Laptop shuts off unintentionally


Sounds like a motherboard problem, with the batteries not charging and your ac adaptor is working cause the laptop still turns on with the ac adaptor. Plus with the laptop turning off on its own I would suggest making sure your air vents on the laptop has no dust or debris blocking the path. If after all these steps the laptop still turns off then the motherboard is bad and would need to be replaced.

Apr 09, 2009 | HP Pavilion DV6500Z Notebook

1 Answer

Inspiron laptop Battery won't charge


Try taking out battery and plug in power. If it works, battery is faulty. If not,
Try taking out your hard disk plug in power, if it works, hard disk is faulty. If not,
Try taking out memory card, if there's a sound, memory card faulty. If no sound, it's your motherboard that is causing the error.

Note: If machine is under warranty no need to pay for the repairs.

Apr 06, 2009 | Dell Inspiron 9400 Notebook

1 Answer

Toshiba satellite m35 power issues


Hi !
While power off, disconnect the power adaptor.
Take off battery.

Plug the power adaptor back and try to start !
Is it running?

If yes, than the power adaptor is OK.

Now shut down and disconnect the power adaptor.
Put back your battery and start!
Leave it untill you 'empty' the battery.
Do not start your laptop.

Plug the power adaptor and do not start your laptop yet.
Is there a led idicator showing that the battery is charging ?
Does it shows when the battery is full charged (e.g. red/yellow=charging, to green/off charged)?
If not, leave it for at least 3 hours. After that, start your laptop (adaptor is plugged) and see if you still have an icon saying charging 99%.

If that is the case, then something is wrong with the battery.

Check your warranty, and replace it.
DO NOT OPEN the battery - nothing interesting you will find inside - nothing you can do !

Regards.

Mar 28, 2009 | Toshiba Satellite M35-S456 Notebook

1 Answer

Pc is telling me to plug it in when the battery is at 90%


The battery needs to be conditioned. To condition a battery, plug in the AC adaptor and charge it to 100%. Unplug the AC adaptor and run the battery completely down to 0% or until the computer shuts itself down or goes into a hibernate mode. Once this occurs, plug the AC adaptor back in and fully re-charge the battery to 100% again. You should now be good to go.

Let me know what happens and if this has solved your problem. Thank you, Binary Bob

Dec 07, 2008 | Acer Aspire 3680 Laptop

2 Answers

Battery and or charger


Try removing the battery and see if the laptop works with the AC adaptor. If not either the AC adaptor is bad or the motherboard is defective.
If your battery LED flashes (yellow or Amber) or is solid Yellow or Amber color, this usually indicates battery is beginning to go bad. Eventually it will not hold a charge and will need to be replaced.
As for the error message “failed DST short test 1000-0146”, this is flagging an error on your hard disk drive. This could be caused by a bad hard drive or just needs to be reformatted.






Your responses are intended to improve the level of service provided. Please show your appreciation by rating your experience.
Thank You.

Nov 13, 2008 | Dell Inspiron 9300 Notebook

1 Answer

Defintely getting power, but not switching on.


There are several possibilities. Let's start with the easiest two. First the battery, take it out and try starting up only with the power supply. Then the memory chips. If a memory chip fails it can cause a no start in IBM's. Take the memory out and try it. Then try it, putting them in one at a time. If these don't work, then I'm afraid your problem lies within. Namingly the power management chip on the motherboard. The pm chip controls the power input, and allows such functions as switching between battery and AC, and battery charging. The pm chip can go without warning, and just because it lights and shows charging doesn't mean this chip hasn't malfunctioned. I've had several IBM's come through my shop that have experienced the same problem you're describing. I've also had them with problems like; it will only power with the battery, won't charge the battery, will charge battery and only run with battery shuts down while charging, only power under AC, etc... all pm chip related issues. Unfortunately, the only solution is motherboard replacement.

Jun 19, 2008 | IBM ThinkPad T40 2373 Notebook

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