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Old 08-31-2015, 11:34 PM   #1 (permalink)
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Default Laptop power help

Hi,
I have a Sony VPCF136FX. The battery stated it was 100% but would not run the computer. I bought a new battery and it worked with the battery power it had but would not charge. The strange thing is if the battery and AC adapter or plugged in, it thinks its on battery but wont charge. If I take the battery out, it recognizes that its on AC. I have tried deleting the Battery in the Device Manager. Is this a hardware issue and can it be repaired?
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Old 08-31-2015, 11:39 PM   #2 (permalink)
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Default Re: Laptop power help

The battery is most likely bad and just needs replaced. Check Amazon or eBay for a replacement (an OEM replacement is best, try to avoid the cheaper Chinese batteries).

Edit: I re-read your post and see you said you replaced the battery already... have you checked the voltage output from your AC adapter with a multimeter to see if it's putting out the right amount?

Is it possible you also got a bad replacement battery? have you checked to make sure the battery is fully making contact with the battery terminals? Does the laptop run fine without the battery in it, and only on AC power?
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Old 08-31-2015, 11:41 PM   #3 (permalink)
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Default Re: Laptop power help

So this is would be the third battery..should i risk it again?
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Old 08-31-2015, 11:42 PM   #4 (permalink)
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Default Re: Laptop power help

Sorry, I re-read your post and edited my previous post with some more things to try before jumping on another battery.
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Old 08-31-2015, 11:45 PM   #5 (permalink)
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Default Re: Laptop power help

computer runs fine without battery. Battery had half a charge left and was working fine when I got it. I have not checked the voltage yet but I did order a new replacement AC adapter just in case. I was wondering if there is something that might have overheated or came lose inside the laptop that might cause the issue? I am so baffled.
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Old 09-01-2015, 02:49 AM   #6 (permalink)
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Default Re: Laptop power help

A DOA battery wouldn't be unheard of, you should be able to get a replacement shipped out free of charge

I'd say if the laptop runs off the AC adapter with no battery installed then the adapter is likely fine.

I doubt this is the issue too, but worth checking! https://us.en.kb.sony.com/app/answers/detail/a_id/42181
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Old 09-02-2015, 12:42 AM   #7 (permalink)
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Default Re: Laptop power help

I had a client's laptop do some thing like that. Turned out to be the power jack on the mother board had just simply worn out. Some times the switching pin in the jack stayed open when the plug was pulled out. That required the case to be opened up and a new jack soldered to the board. Ran fine for years after that.
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Old 09-02-2015, 12:58 AM   #8 (permalink)
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Default Re: Laptop power help

Quote:
Originally Posted by setishock View Post
I had a client's laptop do some thing like that. Turned out to be the power jack on the mother board had just simply worn out. Some times the switching pin in the jack stayed open when the plug was pulled out. That required the case to be opened up and a new jack soldered to the board. Ran fine for years after that.
Was thinking it could be a bad jack, but then you'd think the laptop wouldn't run at all while the battery was out and only on AC power.

@OP: is the jack loose at all? Can you wiggle the plug around?
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