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Battery light flashing

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March 13, 2013 10:50:35 AM

My Sony Vaio packed up whilst I was using it and would not reboot even though it was plugged into the mains but the battery light was flashing. Would a dead battery cause this to happen even though it was plugged into the mains

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a b D Laptop
March 13, 2013 11:00:48 AM

Possibly. How old is it? Depending on usage patterns, you might only get 2-3 years out of a battery.
I've tried "both" sources for replacement laptop batteries: eBay, which sells the cheap ones, and Batteries Plus, which sells "good" ones (e.g. Ray-O-Vac). Some of the cheap ones lasted little more than a year in my old Dell 1505. I gave it to my niece a couple years ago, and AFAIK the Ray-O-Vac is still going strong.
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a c 249 D Laptop
March 13, 2013 11:53:46 AM

Hi :) 

REMOVE battery..plug charger back in... see if it works.... if so... NEW battery time...

All the best Brett :) 
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a b D Laptop
March 13, 2013 12:29:51 PM

I would not run a laptop without its battery long term though. Correct me if I'm wrong Brett, but my understanding is that the battery in a laptop serves THREE purposes:
1. Runs the laptop away from AC (duh...),
2. Filters incoming AC power better than any capacitors/coils in a PSU,
3. Pulls incoming voltage down to the proper level for the laptop; it's higher than the laptop needs, in order to charge the battery.
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a c 249 D Laptop
March 13, 2013 4:49:50 PM

Onus said:
I would not run a laptop without its battery long term though. Correct me if I'm wrong Brett, but my understanding is that the battery in a laptop serves THREE purposes:
1. Runs the laptop away from AC (duh...),
2. Filters incoming AC power better than any capacitors/coils in a PSU,
3. Pulls incoming voltage down to the proper level for the laptop; it's higher than the laptop needs, in order to charge the battery.


Hi :) 

1...Lol

2 & 3 are fine if the country has a good reliable (non fluctuating) electrical supply... like in the UK , where a UPS is almost unheard of...

But if you NEED A UPS ...then battery IN can help with problems...

I see you are very busy at moment :)  Well done for having time to answer :) 

All the best Brett :) 

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a b D Laptop
March 13, 2013 5:30:09 PM

Not so much busy, as sick as a dog for the last three days. Tomorrow will be my first day at work all week.
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