Question about Acer Aspire 3680 Laptop

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Laptop turns off when power cable is taken out even though battery is 100% charged

I have a acer laptop - aspire 3680. Has been working fine for approx a year, but now although the battery is showing as 100% remaining, when I take out the power lead, it just turns off straight away. Have I changed a setting accidently or is there a problem?

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  • 181 Answers

sounds like the system has a problem taking power from the battery, but is able to send power to it for charging purposes, or the battery indicates a ful charge, when in reality it is bad.
If there's a way to borrow a known good battery for testing purposes, you might narrow it down.
I'm sorry, I'd need to see this one to offer any further advice.
Good luck

Posted on Nov 25, 2007


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Posted on Jan 02, 2017


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Check the power adapter with a multi-meter, the voltage of the power plug that plugs into the power socket on the laptop should be slight higher than the voltage that is printed on the label on the adapter.
If it is faulty, there are replacement power supplies available on the Internet or at your friendly computer shop.
If the adapter is OK then the power socket on the laptop is faulty or this socket has a dry solder joint connection on the motherboard.
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Take out the battery and make sure you can turn on the laptop with just the AC Adaptor hooked up.

If you can then you know the AC Adaptor is good. Try another known good working battery in the laptop, if the battery charges then you know that the old battery is bad.

If the laptop doesn't charge with a know working battery or a new one then you know that the motherboard is bad.

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Do you get a power light when its plugged in? If not its likely the power adapter is bad and thats why it doesn't work on battery...never got charged.

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Nothing to worry about mostly all the laptops do this,

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there are some reasons laptop can't power on, try to troubleshoot.
1. Make sure that your ac adapter is working. if you plug battery and ac adapter, the battery chargin led will be orange and if the battery is full, the led will be yellow.
2. Can you power on using battery ? if you can and you can't power on using ac adapter (i assume your ac adapter is working). the problem will be your power port.
if you can't power on using battery and your battery is working ok. the problem will be motherboard.

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