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I have an Acer Aspire 4750Z, i found this problem this morning only when i try to turn on my laptop but it doesnt turn on. then my first thought i think its battery is weak so i recharge it turn it on and it will, but for almost 2 hours and the battery level is still in 57% charge and telling is still charging and it doesnt happen before charging this for to long, then when i try to unplug the AC adapter or the charger my laptop goes turn off. then i try to turn it on again but it doesnt turn on until i put back the AC adapter so i am thhinking there was any problem on my battery, but if it has maybe ms window will tell me that my battery has a problem BTW i am using window 7. please help about this maybe it has something with the software or anything because yesterday it is still working good and suddenly today it has a problem.

I will appreciate for any help.

thanks

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Dani AI

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— this can be fixed without guessing. ’s suggestion (replacement battery) is a common outcome, but run a few quick checks first so a new pack isn’t bought unnecessarily.

  1. Isolate battery vs adapter:

    • Power off, remove the battery, press and hold the power button ~15 seconds, then plug in the AC adapter and boot. If the laptop runs normally on AC with the battery out, the battery (or its connector) is almost certainly the problem.
    • Re-seat the battery firmly and try to start on battery power only (AC unplugged). If it dies immediately, the battery cannot deliver power even if Windows shows it "charging."

  2. Inspect hardware:

    • Look for swelling, corrosion, loose clips on the battery and for a loose/wobbly DC jack where the adapter plugs in.
    • If you have a multimeter, check the adapter output against the label voltage (DC volts). A badly under‑voltage adapter can cause erratic charging.

  3. Software and firmware checks:

    • Enter the BIOS/UEFI (Acer commonly uses F2) and note any battery status/health info shown there. If BIOS also shows no usable battery, that points to hardware.
    • In Windows, use a battery-info utility (or an energy report) to view design vs current capacity; that helps confirm a failed cell or internal protection fault.

If tests point to the battery, replace with the exact model or a quality compatible pack. If the DC jack or charging circuit is faulty, avoid repeated plugging and take it to a shop. Back up important data before doing hardware work. If the battery is swollen, stop using it and dispose of it safely.

These steps will identify whether you need just a replacement battery, an adapter/repair, or a service call.

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Member Avatar for Rik_

Modern batteries have components within them. Isuspect one has failed. A new battery is your best bet.

Member Avatar for ZER09

is there no other way except for replacing it

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