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Brand new battery & ac adapter not working on MX3702

Just replaced battery & ac adapter on MX3702. Power light on ac adapter works, but laptop does not power up. Battery is correctly installed.

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If you've replaced both the battery and the ac adapter then the fault lies in the charging circuit of the motherboard and generally that is either a motherboard replacement or having the power connection on the motherboard by a service center, either way usually about $100

Posted on Dec 12, 2009

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Advent modena m200 will not turn on or charge.


Connect the AC power adapter to the laptop and confirm that the AC power indicator is on (I wish you stated the brand of laptop). If the AC power indicator is not on, try and get a working AC power adapter for your laptop and connect it to your laptop.

With the AC power adapter connected, you can power on your laptop. If the laptop powers on from the OS you can see if the Battery is charging or not.
If the laptop does not power with the AC power adapter connected, then the power port of the laptop is bad.

However, if all these are okay and the battery still does not charge, the battery is faulty and will need to be replaced.

May 15, 2012 | Advent Computers & Internet

1 Answer

My Acer aspire 4935 is not recognizing the AC adapter. When ever I shutdown the system and connects the AC adapter, it works and the charging LED lights up. Once I press the power button to boot the...


Problem description:The battery charges only when the laptop turned off. The battery charge LED lights up as normal and the battery gets charged to 100% while the laptop is off.
When the laptop is turned on, the battery charge LED goes off even if the adapter is still plugged in.
Possible cause:1. AC power adapter failure.
2. Battery failure.
3. Broken/loose power jack.
4. Motherboard failure.
Possible troubleshooting steps and repair solution:1. This problem could be related to a faulty AC power adapter. It's possible that the AC adapter doesn't provide enough power when plugged into the laptop. To find out if this is your problem, you'll have to test the laptop with another working adapter.Replace the adapter if needed.
http://www.chargerbuy.com/replacement-acer-aspire-9400-ac-adapter-19v-3-42a.html

2. There is a slight chance that you have bad battery. Test the laptop with a know good battery and replace the faulty one if needed.

3. The battery charge problem could be related to the power jack. Maybe the jack is broken or not making good contact with the motherboard. It is necessary to remove the motherboard and take a closer look at the power jack. Resolder or replace the jack if needed.

4. If the power jack is in a good working shape and new power adapter with battery do not fix the problem, most likely you have a faulty motherboard. Replace the motherboard if needed.

Feb 09, 2011 | Acer Aspire 4730-4947 Notebook

2 Answers

Gateway lt21 netbook not charging


First of all, you need to make sure your power adapter is providing enough power to both run the laptop & charge the battery. A very good way to do this is to compare your laptop voltage & ampere requirements (written on a sticker on the bottom of the laptop) with the voltage & ampere ratings of the power adapter. Voltages should be the same, or the power adapter's voltage about up to 0.5 volts more than the laptop's voltage rating. Amperage of the power adapter should be at least equal to or greater than the laptop's rating. It should never be less than the laptop's rating, or else the power adapter will be providing insufficient amperes to charge the battery. Of course, the power adapter's nominal amperage might be ok, but it degraded on usage. You can verify this by testing using a good or new power adapter.
If the battery did not charge using the new power adapter, take the battery off the laptop, & using a dry tooth brush, scrub in between the fins of the battery connector on the motherboard & on the battery it self, then put the battery back into the laptop & try again.
If this still did not resolve the problem, then the battery itself could be bad. Try it on another laptop, or try a good or new battery in your laptop.
If this did not work, there might be a possibility that the charging circuitry on the laptop's motherboard is defective & needs servicing. In order to do this, the laptop needs to be disassembled & the motherboard checked for defective/burned out components in the area near the DC jack. Any defective/burned out components found should be replaced, or you might need to replace the laptop's motherboard altogether.

Sep 13, 2010 | Gateway Computers & Internet

1 Answer

Battery of my laptop is not charging .It is constantly showing 37% charged. charging is not increasing nor thegreen light is glowing but laptop is running with A.C. power. AC power light is glowing...


First, you need to make sure your power adapter is providing enough power to both run the laptop & charge the battery. A very good way to do this is to compare your laptop voltage & ampere requirements (written on a sticker on the bottom of the laptop) with the voltage & ampere ratings of the power adapter. Voltages should be the same, or the power adapter's voltage about up to 0.5 volts more than the laptop's voltage rating. Amperage of the power adapter should be at least equal to or greater than the laptop's rating. It should never be less than the laptop's rating, or else the power adapter will be providing insufficient amperes to charge the battery. Of course, the power adapter's nominal amperage might be ok, but it degraded on usage. You can verify this by testing using a good or new power adapter.
If the battery did not charge using the new power adapter, take the battery off the laptop, & using a dry tooth brush, scrub in between the fins of the battery connector on the motherboard & on the battery it self, then put the battery back into the laptop & try again.
If this still did not resolve the problem, then the battery itself could be bad. Try it on another laptop, or try a good or new battery in your laptop.
If this did not work, there might be a possibility that the charging circuitry on the laptop's motherboard is defective & needs servicing. In order to do this, the laptop needs to be disassembled & the motherboard checked for defective/burned out components in the area near the DC jack. Any defective/burned out components found should be replaced, or you might need to replace the laptop's motherboard altogether.

Sep 08, 2010 | HP Pavilion dv6000z Notebook

1 Answer

My HP Compaq 6730s will not turn on. There is a blue light with a amber flashing light around the ac cord input. I"ve disconnected the battery and the ac plug and it still happens when I reconnect them. Is...


First, you need to make sure your power adapter is providing enough power to both run the laptop & charge the battery. A very good way to do this is to compare your laptop voltage & ampere requirements (written on a sticker on the bottom of the laptop) with the voltage & ampere ratings of the power adapter. Voltages should be the same, or the power adapter's voltage about up to 0.5 volts more than the laptop's voltage rating. Amperage of the power adapter should be at least equal to or greater than the laptop's rating. It should never be less than the laptop's rating, or else the power adapter will be providing insufficient amperes to charge the battery. Of course, the power adapter's nominal amperage might be ok, but it degraded on usage. You can verify this by testing using a good or new power adapter.
If the battery did not charge using the new power adapter, take the battery off the laptop, & using a dry tooth brush, scrub in between the fins of the battery connector on the motherboard & on the battery it self, then put the battery back into the laptop & try again.
If this still did not resolve the problem, then the battery itself could be bad. Try it on another laptop, or try a good or new battery in your laptop.
If this did not work, there might be a possibility that the charging circuitry on the laptop's motherboard is defective & needs servicing. In order to do this, the laptop needs to be disassembled & the motherboard checked for defective/burned out components in the area near the DC jack. Any defective/burned out components found should be replaced, or you might need to replace the laptop's motherboard altogether

Sep 05, 2010 | HP Compaq 6735s Notebook

1 Answer

Dell laptop Will not charge, brand new charger still ran on the lil battery charge that was left in it. Wondering if the part that plugs in is loose or what u may think the problem is, thanks alot!


There could be a problem with the battery. A fast check to determine whether you have a problem with the power adapter, power cord or the laptop's battery is to turn off the laptop, remove the battery, connect the power adapter, turn on the laptop & see if it works.
If the laptop works directly from the power adapter with the battery removed, then the power adapter is good. In this case we can suspect that the battery is defective & needs to be replaced.

Dec 23, 2009 | Dell Computers & Internet

1 Answer

Power up issue


There could be a problem with the battery. A fast check to determine whether you have a problem with the power adapter, power cord or the laptop's battery is to turn off the laptop, remove the battery, connect the power adapter, turn on the laptop & see if it works.
If the laptop works directly from the power adapter with the battery removed, then the power adapter is good. In this case we can suspect that the battery is defective & needs to be replaced.

Nov 20, 2009 | Acer Computers & Internet

1 Answer

Laptop not working on battery, i have changed the battery


There are several simple indicator to determine the source of the problem. There are 4 major components involved, the laptop circuitry, contact terminal, AC adapter and battery. Every laptop has a LED light indicating if it is in the charging mode (without powering up the laptop). Start out with your laptop shutdown. Pull out the battery, then plug in the AC Adapter. See any LED light go on? Try again, the same procedure now with the battery plug in first, then plug in the AC adapter. See any additional LED lights go on? If there is no different, than the laptop can not detect your battery. If the AC adapter can power up your laptop, you can eliminate the battery (assumed brand new battery) & AC adapter. This only leaves you with the laptop circuitry & contact terminal. If your laptop can charge up your old battery or any battery, then it might be still the battery & contact. So, you try these procedure to reduce down to the "problem" component.

Oct 13, 2009 | Acer Aspire 5315 Notebook

1 Answer

My dell vostro 1000 laptop's display aint working. The screen remains black. Even the battery light doesnt glows. Only the power light comes on. Please help.


hi,
try these two things if both don't work you should call dell tech support

1) take out the battery and the ac adapter and then push and hold down the power button for 15 seconds, this releases flea power in the laptop and makes it work sometimes
if it didn't work

2) take out the battery and put in the AC adapter and try to start your laptop on AC adapter alone, if it starts that means either your battery or *********** board is bad, you can check if the battery is bad by replacing it with a new battery and if it works with new battery that means the old battery was bad but if it only works without battery with ac adapter and new battery also didn't work, that means motherboard is bad, Call dell tech support

If you think the info given by me was helpfull please do rate me
Regards
Ltoso

Jul 07, 2009 | Computers & Internet

1 Answer

Laptop won't turn on


The blinking orange battery light generally indicates that the battery isn't working properly, usually going out and not charging properly. In this case, since the adapter will not power the machine without the battery, and it should, I'm going to say that the adapter is going out and not getting the proper amount of power to the system. Try replacing the adapter. Be sure to replace it with a Dell replacement, the Targus brand universal adapters do not work well with Dell machines, and in most cases won't work at all.

Jul 11, 2008 | Dell Inspiron 5160 Notebook

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