The laptop laptop battery gets very hot. The battery wasn’t so hot before.

Possible cause:

The main battery failure.

Possible troubleshooting steps and repair solution:

If the laptop battery is getting very hot while charging, most likely this is the battery failure. Remove the battery and use the laptop only on AC power until the battery is replaced. This will prevent the possible laptop damage.

Before you replace the battery, enter the BIOS setup menu on your laptop and find out what version of BIOS you have installed. Go to the manufacturer’s website and search for the BIOS updates. Download and install the latest version. Sometimes manufacturer’s release battery related fixes in the BIOS update. Updating the BIOS can fix the battery problem.

If it doesn’t help, replace the battery.

The laptop switches on only when power plugged. When the laptop is unplugged and you press on the power button, nothing happens.

Possible cause:

1. Bad battery.
2. Motherboard failure.

Possible troubleshooting steps and repair solution:

This is either the battery or motherboard related problem.

1. Try reconnecting the battery. Remove it from the laptop and plug back in. Test the laptop again. It’s possible that the battery is not making good contact with the connector on the motherboard.

2. Try replacing the battery with a new one. The battery could be bad. Even if the battery is detected by the operating system and appears to be 100% charged, it still could be bad.

3. It the problem still exists even after replacing the battery, most likley it is related to the motherboard failure. You’ll have to replace the motherboard or use the laptop just on AC power.

The laptop turns off when unplugged even though the battery is plugged in.

Possible cause:

1. Bad battery.
2. Faulty motherboard.

Possible troubleshooting steps and repair solution:

First of all, take a look at the battery icon in the lower right corner of the desktop. If there is a red cross on the battery icon, the laptop doesn’t see the battery and because of that it shuts down when you unplug the power adapter. Try reconnecting the battery, maybe it’s not making good contact with the motherboard. Reconnecting the battery might help.

If reseating the battery doesn’t help, most likly you have a bad battery and it has to be replaced.

Also, this problem could be related to the motherboard failure, but you cannot tell which one is causing the problem the battery or motherboard untill you test the laptop with another good battery.
If replacing the battery doesn’t help, you have the motherboard problem. Replace the motherboard or use the laptop as is, just on AC power.

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.

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.

The laptop battery discharges very quickly. The laptop battery charge goes from 100% to 0% in a few minutes. The laptop works normal with AC adapter plugged.

Possible cause:

Battery failure.

Possible troubleshooting steps and repair solution:

If the battery in your laptop discharges very quickly, most likely the battery is getting old and has to be replaced.

The laptop shuts down when the AC adapter unplugged even with the battery still installed into the laptop. The laptop detects the battery and says it’s charged 100% but will not on the battery power at all. The laptop operates properly from AC power with the battery removed.

Possible cause:

1. Battery failure.
2. Motherboard failure.

Possible troubleshooting steps and repair solution:

Most likely this problem occurs because of the battery failure. Even though the laptop detects the battery and says it’s 100% charge, it doesn’t mean that the battery is in good working condition.

If you have a problem like that, try replacing the battery first.

If replacing the battery doesn’t help, most likely you have the motherboard failure. You’ll have to replace the motherboard or use the laptop as is.

The laptop battery discharges very quickly after reaching some charge level. For example, it takes normal time for the battery to discharge from 100% to 75%, but after reaching 75% level it discharges to 0% very quickly. The same failure occurs after recharging the battery again.

Possible cause:

Main battery failure.

Possible troubleshooting steps and repair solution:

This problem is related to the battery failure. Apparently, the battery is getting old and has to be replaced.

The laptop stopped charging the battery. The laptop shuts down as soon as you unplug the AC adapter. The laptop works fine from AC power even when the battery is removed.

Possible cause:

1. Bad battery.
2. Motherboard failure.

Possible troubleshooting steps and repair solution:

Most likely this problem is related to the battery failure. The battery is dead and has to be replaced.

If you replaced the battery but it didn’t fix the problem, you have a faulty motherboard. Apparently, the battery charging circuit on the motherboard is not functions properly. You’ll have to replace the motherboard or use the laptop as is.

You cannot tell if you have a faulty battery or motherboard without testing the laptop with another known good battery.