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I have this sony laptop about 6 years old. The battery lasts about half an hour or less. Now all of a sudden it cannot find the battery at all. The battery icon shows a red cross says No battery is detected. I unplug the battery and put it back in, it's just like nothing happened. Is it completely dead? I mean it would still be very useful even if it only holds like 5 or 10 minutes. At least I can move the computer from one room to another without shutting it down. What can I try?

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  • What happens if you unplug the AC power? If the computer shuts down immediately, then, yes, the battery is COMPLETELY dead.
    – TFM
    Feb 20, 2013 at 5:51
  • ha, haven't tried that yet. will try when work is done.
    – LWZ
    Feb 20, 2013 at 5:58

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A laptop computer battery should last between two and four years, or around 1,000 full charges. The total lifetime of battery life is dependent on the type of battery your laptop has, how you use the battery, how it's charge, and how well you take care of the battery. (source)

If yours is 6 years old, and from what you described, it is highly likely it needs to be replaced.

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  • My battery went the same way. I agree with CharlieRB, buy a new battery.
    – Guy Thomas
    Feb 20, 2013 at 19:37
  • the battery or the internal (in the laptop) circuit to charge it
    – AndreaCi
    Feb 21, 2013 at 16:11
  • This is referring to the battery itself. The internal circuit should last indefinitely, unless there is some sort of damage.
    – CharlieRB
    Feb 21, 2013 at 20:24

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