Battery charging problems

In this post I explain how to troubleshoot battery charging problems. I will discuss most common failure examples and suggest some troubleshooting steps.

Example 1.

Laptop shuts off when AC adapter unplugged.

When you move the cursor arrow over the battery icon while the laptop is connected to AC adapter, it show the remaining charge and says “charging”.

The power meter utility (if available) also shows that battery is connected and charging.

But… as soon as you unplug the AC adapter, the laptop shuts off completely.

Possible problems:
1. The battery not seated correctly. Try reconnecting it.
2. The battery contacts got dirty or oxidized and it’s not making good connection with the motherboard. Apply some electronic contact cleaner on the contacts.
3. If reconnecting the battery doesn’t help, most likely it’s bad and has to be replaced.
4. If you replaced the battery but the problem still exists, this is motherboard related failure. Apparently the charging circuit on the motherboard failed. In this case the whole motherboard has to be replaced (or repaired on the component level).

 

Example 2.

The battery not detected by the laptop.

There is a red cross on the battery icon.

If you move the cursor arrow over the battery icon, it says “no battery detected”.

Possible problems:
1. Most likely the battery is bad. You have a very good chance to fix this problem by replacing it with a new one.
2. If replacing the battery doesn’t help, this is motherboard related failure. The motherboard has to be replaced (or repaired on component level).

 

Example 3.

The battery discharges very quickly after it reaches some critical point.

The battery detected by the laptop and charges properly to 100%.
When you unplug the AC adapter, it take normal time to discharge until some critical point (let’s say 80%) but after that the battery discharges very quickly to 0%.

Possible problems:
This is battery failed. It has to be replaced with a new one.

 

Example 4.

The battery charges only if the power plug positioned correctly.

You have to wiggle the power plug in order to charge the battery. After you find the right position, it charges properly.

Possible problems:
1. AC adapter failure. The AC adapter power cable is damaged. Here’s how to test your AC adapter.
2. If the AC adapter works fine, most likely this is power jack (connector where you plug power adapter) failure. In this case the power jack has to be replaced.


153 Responses

  1. @ David V.

    My laptop charges correctly, but the battery charge light does not turn on. Any reason for this?

    Could be just failed LED lamp.

  2. David V.

    Hi. My laptop charges correctly, but the battery charge light does not turn on. Any reason for this?

  3. @MOHIT TYAGI,
    Sorry, I cannot understand your question.

  4. MOHIT TYAGI

    DEAR SIR
    MY ACER LAPTOP AUTO SHUTDOWN
    BUT I AM CHENGE THE NEW MOTHER BOARD ,FIRST TIME LAPTOP WITHOUT BATTERY ON ADAPTER PROPER WORK ,BUT BATTERY INBILD IN LAP SAME PROBLEM .
    SO PLS MY PROBLEM SOLUTION IMEDENTLY.
    THENKS
    MOHIT TYAGI

  5. @ hazelyz84,

    My toshiba laptop wont turn on at all. I bought a new ac charger, repaired the dc port and only the orange battery light comes on when I plug in the adapter but it still doesnt power on. I’ve tried plugging in the adapter without the battery in and it still doesnt power on. What could be the problem?

    Could be one of the following:
    1. Failed power button. Maybe the laptop doesn’t turn on because the power button not working properly. I’ve seen it happening before.
    2. Motherboard failure.

  6. hazelyz84

    My toshiba laptop wont turn on at all. I bought a new ac charger, repaired the dc port and only the orange battery light comes on when I plug in the adapter but it still doesnt power on. I’ve tried plugging in the adapter without the battery in and it still doesnt power on. What could be the problem?

  7. @ phil,
    Your description is not very clear. Do you have only one (onboard) USB port failed or all of them failed?

  8. i have 3usb port on my laptop 2was attached 1 was on board but the on borad port with 1 port frm the attached is not working how do i fix this problem but i still got power from the 2 USB
    ports that is not working

  9. I had problem with my power O_O
    Well i had to shut down all the power in the house to fix the problem,
    because the AC adapter didnt charge my battrey at all,but in different room it did charge….

  10. harborg

    I have a toshiba laptop working perfectly when its boot to desktop.The laptop do on with battery and also on with ac adapter but if shutdown,it will never on again onelse i remove the battery and then insert it again then it will on.i have tried my best in fixing the problem but still the same.please anybody with a possible solution….

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