It works great on ac adapter as long as the battery is removed. As soon as I instal the battery, the screen locks up. When I start it with the battery in, the screen won't light up, but the fan runs. I have tried a new battery with the same results.
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Re: battery kills my laptop
Oh dear! My best guess from the information you've provided, is that possibly the charging unit in the laptop is faulty?
It really sounds like there is a short-circuit somewhere. I've come across many, many laptops that have faulty charging units... they still work from the mains just fine, but they won't charge a battery. I think yours could be trying a little too hard to charge your battery.
In any case, there is no software or hardware settings that can cause this, and you've eliminated the battery from the equation... so you're left with the laptop being faulty. I'd get a tech to put a multimeter onto the contacts in the battery compartment to see what kind of voltage it's putting out... or if it's grounding somewhere. (which would explain why inserting the battery locks the poor computer up!)
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The first thing to always try is resetting your PC. With a laptop, you must unplug it and remove the battery. While the laptop is unplugged and the battery removed, hold down the power button for a minimum of 30 seconds. This will reset the PC. Plug it back in and see if it works now. Always try to reset the PC first, for many different problems.
Laptop batteries power a laptop when it is not connected to an electrical outlet. If the laptop battery fails to charge when the laptop is plugged into an electrical outlet, the battery is likely dead and needs to be replaced. Unfortunately there is no way to fix a dead battery. However, while a dead battery is the likely cause, it is not the only cause. The AC adapter may be broken, in which case the battery won't charge, or the battery contacts may be dirty and need cleaning. Prior to replacing the battery, perform simple tasks to ensure a dead battery is the cause of the problems.
1.Power down the laptop. Gently pull the AC adapter from the side of the laptop for removal.
2.Place the laptop in front of you, bottom side up. Locate the battery release mechanism. This can be a button that slides or needs to be pushed to unlock or release the laptop battery from the housing unit. Press or slide the mechanism. Slide or lift the battery from the battery bay for removal.
3.Insert the AC adapter into the side of the laptop. Power on the laptop. If the laptop does not power on, ensure the AC adapter is securely plugged into a working electrical outlet. If the electrical outlet is working and the laptop won't power on, the AC adapter is not properly working and needs to be replaced. Remove the AC adapter.
4.Dip a cotton swab in a small amount of rubbing alcohol. The cotton swab should be damp, not dripping wet. Lightly rub the dampened cotton swab onto the battery contacts and battery bay contacts to remove dust, buildup and grime. Allow the contacts to air dry.
5.Align the battery over the battery bay. Either press or slide into place. A clicking or snapping noise produced from the locking mechanism will confirm the laptop battery is securely locked into place.
6.Install the AC adapter. Allow the AC adapter to fully charge the battery for 8 hours.
7.Remove the AC adapter. Power on the laptop. If the laptop does not power on, the battery needs to be replaced.
Turn the Acer notebook off by pressing the "Power" button. Remove any power sources connected to the notebook. If the notebook is open, close it.
Flip the Acer upside down and place it flat in front of you. Slide the battery locking mechanism to the right. The locking mechanism is diagonal to the lower left corner of the battery. While sliding the mechanism, slide the slimline battery out of the battery bay.
Insert the AC power adapter. The AC power adapter outlet is located toward the middle of the right side of the notebook. Attach the other end of the power adapter to a functioning electrical outlet. Open the laptop. Turn the power on. If the Acer notebook powers on, the AC power adapter is properly working. Replace the AC power adapter if the laptop does not turn on. Remove the AC power adapter and turn the notebook off.
Inspect the slimline battery. Look for signs of damage such as dents and corrosion. If the battery contacts appear to be dusty or have residue, gently clean them with an alcohol wipe or cotton swab dipped in rubbing alcohol.
Re-install the battery by sliding it back into the battery bay. You may hear a click or snap when the locking mechanism locks the battery firmly into place.
Plug the AC power adapter into the laptop. Leave the power adapter in the notebook for eight hours so the battery charges.
Remove the AC power adapter. Power on the Acer notebook. If the notebook does not power on, the slimline battery must be replaced. If it does turn on, the battery did charge.
Some laptops will not power up with a completely discharged or faulty battery. Remove the battery from the laptop, plug in the power cord and try to boot the system. If the system boots, your battery needs to be replaced. Replace your battery as soon as you can, it's not a good idea to run the laptop for extended periods with an open battery bay.
remove battery and try ac-power if laptop boots up then battery need replacing but if no laptop bootup then take it to be repaired and tell the tecnition what happened and he or she will try other options to get you going again.
good luck on problem.