Question about Acer Aspire 5040-3810 Notebook

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Batter AC constant switch back nd forth

The power switches back nd forth between battery and ac...alarm goes on and off and screen switches s well. Can not run unless the battery is in the bay. Attempted ac only no go.

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  • 776 Answers

Several possible causes -- bad power supply (AC adapter, bad battery, bad connection to AC adapter, bad connection to battery - or both.

Posted on May 26, 2009

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Posted on Jan 02, 2017

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1 Answer

Constant alarm but works fine otherwise


Jordan,

It probably burned up one of the capacitors on the board that signal the UPS to turn the alarm off. I've had this happen before and I unplugged everything, turned the UPS off, disconnected the batteries and then opened the UPS up to cut off the tiny, annoying, surprisingly loud speaker. I then put everything back together and that was the end of it :)

If you need UPS, Surge, or Power Related help contact Daniel @ Power & Systems Innovations 800.260.2259 or go to our website: http://psihq.com/

Feb 02, 2013 | Opti -UPS PowerES 1000 UPS System

2 Answers

My ups is switching on on battery for few seconds but without AC output, the same thing when I put AC power it switches on normally but also without AC output.What can I Do? Please help


does it have a led display for battery charge? if it is very low battery is bad,when you add a/c no output because bad battery will not provide a/c in power failure

Feb 02, 2011 | Powercom (BNT-1500AP) UPS System

1 Answer

Screen goes black shortly after turning on


I'm sorry that the screen goes black shortly after turning on the camcorder. I suggest that you perform a manual power reset and check the operation. Follow the steps to perform a manual power reset:
  1. Turn off the camcorder.
  2. Disconnect AC power adapter.
  3. Remove the battery pack.
  4. Remove the lithium button-cell battery.
  5. Move the POWER switch to the CAMERA position for 15 seconds.
  6. Move the POWER switch to the OFF position.
  7. Reinsert the lithium button-cell battery.
  8. Reconnect the AC power adapter or reinsert the battery pack.
  9. Turn on the camcorder.

Jan 04, 2011 | Sony Handycam DCR-SR42 Camcorder

1 Answer

Hello, i broke the screen on my laptop wanting to switch it to my desktop monitor but for some reason it wont switch over. unfortunately since i cant see the screen i cant get into my startup menu any...


First, disconnect the laptop from the ac adapter and take off the battery and the memory. Press the reset button on your laptop. Connect your ac adapter only and press the power button two or three time while everything else is disconnected. Then, re-install your memory and your battery. Connect the ac adapter to the laptop and to your power source. Now turn on your laptop and see if you get a display on your laptop screen. If you do, then you have reset everything and you are back to where you started. Good luck and let me know how it goes.

Dec 06, 2010 | Computers & Internet

1 Answer

My power source keeps switching from ac adapter to battery. Please help.


Do you happen to have a loose power adapter? If it switches back and forth It could be a faulty power adapter.

Jul 10, 2010 | Acer Computers & Internet

1 Answer

Computer switching between battery & AC power.


Hi friend,

You can release the battery then use the ac adapter for run the computer..if your computer is runing then you need to change the battery...

Jan 06, 2010 | Dell Inspiron 9300 PC Notebook

2 Answers

Apc


1) Switch Off the UPS and unplug all Loads (like System, Monitor etc.) from UPS.
2) Switch Off the AC Power (Input Power to UPS).
3) Press the UPS Power Switch constantly unless you hear 2nd BEEP Tone. As soon as you are hearing 2nd BEEP Tone, Release the Power Switch.
4) This is COLD START of all APC UPS that will reset any internal problem.
5) If, however, the problem persists, contact APC.

Jul 23, 2008 | APC Back-UPS ES 725 Broadband (BE725BB-TU)...

1 Answer

Dekk Inspiron 6000 power


Start by checking the power supply with an ohm meter to see if it has the proper output. If the machine is starving for power it will jump back and forth from battery to AC. You can find the output ratings on the side of the supply. If the supply checks good, then I'm afraid the problem is with the power managment chip on the motherboard. The PM chip controls the power input and the switching from battery to AC, it also controls the charging system.

Jul 20, 2008 | Dell Inspiron 6000 Notebook

2 Answers

Power


Try this:

With the AC adapter and battery installed and it will not power up remove the adapter and the battery. Then plug in the
AC adapter after both have been removed for 30 seconds and let the laptop set for 30 seconds and then unplug the AC adapter and then slide in the batter within 15 seconds and try to start the laptop.

Nov 24, 2007 | Compaq Presario 900 /1500 Series EVO...

1 Answer

Laptop wont run on battery!


ok it looks like your battery has run out of power thats why it would not run when ac is off.If it so happens that the laptop runs when battery is connected to ac then battery seems fine by me just flat. Conenect them to ac and run your pc,go to your control panell and power saving options and set to mimimum usage/power saving mode in this way you charge your battery.Remember bright screen consumes more power

Apr 24, 2007 | Acer Aspire 5670 Notebook

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