Question about Apple Customized 15" MacBook Pro Laptop Computer Notebook

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The computer will only work on main power

Battery will not charge

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  • Martin Buck
    Martin Buck May 11, 2010

    Can you supply a bit more info? Computer model? OS?
    Thanks


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If using osX: while connected to power, go to the apple (upper left hand), about this mac, more info, and then power on the left side of the system profiler. this will give you info about the battery. If the laptop is less than 3 years old, call apple and see if they will cover it under the Repair Extension Program for batteries.

Posted on Jun 04, 2009

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HP dv6000 laptop not charging problem, adapter, battery and power jack looks like it works fine


If your battery, charger, and DC Jack are ok, then the most common problem is the surface mount transistors on your HP's main board called MOSFET's. They are small 30V N channel 8 pin components soldered to the main board. The boards also have transistor circuits which switch back and forth between a charging and discharging state. However these rarely ever fail. The MOSFETS fail because of the thermal loads which they must endure. Although some notebooks (like the Gateway I'm currently on) have a DC jack which serves dual purpose of supplying DC 19V AND connecting/disconnecting charging circuit. However your HP dv6K does not.
However it's worth mentioning that these models have had all sorts of problems...most notably poor thermal design to begin with that usually creates solder connection problems with the main chipset especially on AMD models. Good luck.. :)

Mar 27, 2013 | HP Pavilion DV6500T Notebook

Tip

UPS - Battery Fault


UNINTERRUPTABLE POWER SUPPLY
Batteries in the UPS typically last 3 to 5 years and it depends upon several factors. Including the number of times the unit must go on battery power and environmental conditions. There are usually several batteries in the UPS and while the battery voltage may show 13 volts, this may only be a float charge/voltage and a true indication of the battery voltage and condition requires the batteries to be tested under a load. If one battery is faulty in a set of batteries it will causes the whole battery system to fail and indicate a battery fault. A faulty charging circuit will not charge the batteries and will also cause a fault condition.

Lower powered and cheaper type UPS are switch over types, when the mains supply fails, the UPS switches over to the battery and inverter in milli-seconds which then supplies mains power to the computer and peripherals. A faulty inverter circuit and or flat batteries won’t deliver standby power when the mains supply fails.

NOTE the power waveform from these UPS is a pseudo sine wave (i.e. not a true sine wave).

The true UPS types are usually the higher KVA units (over 1500 VA) that supply continuous mains power. The mains power is connected to a charger which charges the batteries and the inverter draws power from these batteries and converts it to true sine wave mains power to the computer equipment, therefore there is no switch over time lag when the mains supply fails.

on Dec 02, 2009 | Computers & Internet

1 Answer

Got a dell latitude d520 charges battery ok will not power up with mains plugged in only works on battery power any ideas


Hi there!

Your laptop is working with just the battery but not with the main power. This issue you have here is usually caused by a motherboard problem but have you tried to remove the battery then try to turn on computer? If it works then you might just need a BIOS update for the computer of not then there's a high chance that the motherboard your using is having a problem using the main source.

Hope this helps!

Sep 07, 2011 | Dell Latitude D520 Battery PC Notebook

1 Answer

My wrless is not going to b turn on on windows 7 nd xp plz give me the sedation nd support for it


Critical battery switches off the wireless network card to preserve power. Motherboard seems to log this status but when re-connecting to mains power the card does not receive power again. Uninstalling the driver and getting Windows to re-install automatically upon re-boot does not work.


Charge up the battery whilst the computer is running. You can charge it to a substantial level, say, above 25%. Disconnect mains power so that your laptop is running on battery only. Set your wireless switch to OFF (this is usually to the left position, away from the orange indicator). Now run your computer down to the critical battery level again (perhaps overnight). In the morning when you press the power button, the 'CHARGE' indicator (looks like a lightning bolt) on the front of the laptop should flash quickly, indicating that there is no charge in the battery. Remove the battery from the laptop's underside. Wait a couple of seconds, then press and hold the power button for 30 seconds. Keeping the battery off the laptop, reconnect mains power. Boot up your PC. When at the Windows desktop and all your startup programs have finished loading, switch your wireless on (to the right position). You should now have a blue light, and wireless should once again be working. You can now re-insert your battery. You might have to setup your wireless network connection again as mine seemed to be 'lost', but at least hopefully the main problem is now fixed

Feb 08, 2011 | Computers & Internet

1 Answer

My battery will not charge


Hello Following issue could be possible

Issue:Main computer battery does not charge.
Cause:This issue can be caused by any of the below possibilities.
  1. Computer AC / DC cable is bad not allowing the computer battery to charge.
  2. Battery is bad.
  3. Battery charger board is bad.
Solutions:
Computer AC / DC cable is bad not allowing the computer battery to charge
Verify that the AC and or DC cable is not bad by testing the computer only with the power plug connected and the battery out of the laptop.
Battery is bad
It is possible that if the power plug is good that the computer battery is bad. Leave the computer connected to the power with the battery connected in the computer for at least one hour; if the battery does not charge, consider having the battery and/or the laptop serviced or repaired.
If the computer and/or battery is not in warranty consider just replacing the battery as it is very likely that it is just a bad battery.
Battery charger board is bad
If the battery has been replaced or an alternate battery from an alternate identical laptop does not work in the computer, it is likely that the power or charger board within the laptop is bad. It is recommended that the laptop be serviced or repaired.

Aug 18, 2009 | Computers & Internet

2 Answers

My Acer Aspire 5720 laptop won't charge while it's running


Hello there:
try removing the battery from the computer and turning on the computer to see if the power cord works correctly if it does inspect the battery and clean the terminals on the battery and computer and put the battery back in while it is still on now you should see the battery show up on the taskbar if not right click anywhere on the desktop and go to properties and than go to than go to screensaver than look towards the bottom and you will see power click on it and you should see the options for the battery ok sorry this was so long but i needed to explain it in full
please dont forget to rate this
best regards mike
(usn retired)

Jul 30, 2009 | Acer Aspire 5720-6661 Notebook PC

1 Answer

DV8309 power up problem: blue lights on for few seconds then off


The inverter inside the lcd panel is most likely your problem. Try removing the whole lcd screen from the laptop if you are capable and run it with the external screen to confirm. leave the lcd switch off (this lcd switch above the power button turns the lcd inverter on and off)

Jun 19, 2009 | HP Computers & Internet

1 Answer

BATTERY NOT CHARGING


Try replacing the battery, i think the battery is defective.

May 09, 2009 | Acer Aspire One PC Notebook

1 Answer

Power issues on HP DV1000


It is possible you have two dud batteries. Recharageable batteries have a limited life, they have a finite number of charge and discharge cycles.
With the battery removed and only the power supply connected and the laptop powered up, when you touch the connector on the laptop and the laptop does not shut down then the laptop connector is OK.

If you can verify your new battery is OK the the fault could be the power supply adapter, if may not produce enought current to run and charge the battery. Try charging the battery overnight by turning off the laptop and leaving on the mains t charge. Borrow a mains adapter and test it on your computer.

You can also check the BIOS setting for power management, ie. hibernate, low power shut down etc.


Dec 03, 2008 | HP Pavilion dv1000 Notebook

1 Answer

Toshiba satellite A210 11-P crashes when i disconnect the power lead


From Toshiba, try step-charging the battery or Battery conditioning procedures:

Batteries don't last forever. All types of batteries gradually lose their ability to hold an electrical charge as they age. Eventually, the computer's battery charge indicator may show that the battery contains less than a full charge, even though the battery has just been fully charged. The computer will then not run for as long a time from the battery as when the battery was brand new.
You may prefer to simply replace the battery if this happens, but you may also wish to try 'step-charging' the existing battery per the following instructions.
This procedure should work for the battery in any Toshiba notebook. Follow it only when you find that the computer will run from the battery for just a short while.
Check the User's Guide for more specific information about charging the battery in your computer .

Procedure

Step-charging the computer's battery

  1. Unplug the AC adapter from the computer, and turn ithe computer on. Let the computer run from battery power until the computer turns off, indicating that the battery is fully discharged. Time this interval, but not with a software clock running on the same computer.

  2. Remove the battery pack from the computer.

  3. Unplug the AC adapter from the computer.

  4. Wait at least 30 seconds. The first time through this procedure, use a soft cloth to wipe the battery pack's contacts and the AC adapter's plug.

  5. Re-insert the battery pack.

  6. Plug into the AC adapter into the computer again and check the fit of its plug in the wall outlet, making sure the connection is secure.

  7. With the computer turned off, let the battery charge until the battery status light or icon glows green, or otherwise indicates a full charge.

  8. Unplug the AC adapter from the computer.

  9. Remove the battery.

  10. Wait at least 30 seconds, then re-insert the battery.

  11. Plug the AC adapter back into the computer.

  12. Let the battery charge again until the battery status light turns green or otherwise indicates a full charge, again.
Repeat this procedure, starting from step 1, at least three times. Each time, check to see if the computer runs longer from its battery than the previous time.

Battery Conditioning:
IMPORTANT!!
Interruptions in the charging cycle can be responsible for an issue called "memory effect" which may reduce the battery's charging capacity. Whenever you suspect the battery performance is not at it's optimum you should try using the following "Battery Conditioning" procedure.

Before you start: Turn off your battery saving features temporarily.

***IMPORTANT*** Repeat the following steps 2-3 times!

  1. Unplug the power cord from the computer
  2. Turn the computer on and let it run until it shuts itself off.
    Note: Using the CD-ROM to play an Audio CD will speed the discharge.
  3. Plug in the power cord (While the system is off) charge the battery until the battery light changes from flashing green to solid green
  4. Remove the battery for 30 seconds and then replace it.
    Note: If the battery light isn't lit, wait a few moments, if it still does not light check your power connections.
  5. Continue charging the battery until the battery light turns solid green once again.
    **REPEAT THIS PROCEDURE 3 TIMES**

If I could be of further assistance, let me know. If this helps or solves the issue, please rate it.
Thanks, Joe

Nov 04, 2008 | Computers & Internet

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