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laptop is switching to battery when fully charged


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#1 rm22

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Posted 06 April 2016 - 03:54 PM

I just got a replacement battery for my Acer Aspire (5742 series) laptop. When the battery is fully charged then the laptop automatically switches to battery only - dropping the AC. If I unplug the AC & plug it back in it briefly stays on AC & then goes back to battery.

 

The laptop works fine on AC with other batteries. Is there anything I can do to try to fix this or is it just a matter of returning it?

 

OS is Windows 7 Home Premium 64-bit SP1

 

Thanks!



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#2 Sneakycyber

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Posted 06 April 2016 - 09:48 PM

Is the battery an OEM Acer battery or generic replacement?

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#3 rm22

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Posted 07 April 2016 - 01:08 AM

Is the battery an OEM Acer battery or generic replacement?

purchased on Amazon.ca - manufacturer is PowerSmart - seemed to have decent reviews.

 

I'd planned to buy an Anker replacement as they seem make quality products, but it's currently not available. the only 'reputable' option i see for a decent price is Dr. Battery at $50. but the laptop is almost 6 years old so i went for the cheap option since it's not likely to last much longer



#4 Sneakycyber

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Posted 07 April 2016 - 06:32 AM

All laptop batteries have a circuit in them for charging and monitoring. It's likely the battery is not reporting correctly to the laptop or the laptop doesn't recognize the circuitry. I would contact the seller and have them send a replacement. I have used aftermarket battery's in a few different laptops. They tend to not last as long as the OEM Branded ones (they use cheaper unmatched cells), but they do work. 


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#5 rm22

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Posted 07 April 2016 - 05:01 PM

All laptop batteries have a circuit in them for charging and monitoring. It's likely the battery is not reporting correctly to the laptop or the laptop doesn't recognize the circuitry. I would contact the seller and have them send a replacement. I have used aftermarket battery's in a few different laptops. They tend to not last as long as the OEM Branded ones (they use cheaper unmatched cells), but they do work. 

ok - thanks for the help - we'll see if the next one works






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