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laptop won't run without ac power

I have a gateway solo 9550. without ac power the laptop won't run. If I take out the ac plug while it's running the laptop turns off. I recalibrated the battery to no avail. I checked on bios updates for the system and there is one available but it's a fix that doesn't seem to be related to my problem. Windows power options says that the battery is fully charged but it also flips from charging to discharging every minute, so it seems something is not right. Any help would be appreciated.
1 Solution
Lee W, MVPTechnology and Business Process AdvisorCommented:
This laptop is at least 3 years old.  Laptop batteries die - far sooner than the laptop. It's possible there's a loose connection or something else wrong, but I'd have to say odds are the battery is shot.
i just happened to have one like that, and a fresh install cured it. but i'd say try first another battery.
It can also be the power board in the laptop, but that would require in most cases a new mobo.
Just FYI the powerboard on a Solo 9550 is removable.
Here's a link (Mostly for the picture.) ~ Reliable dealer but usually pricey..

The batteries on those things have an internal circuit board that controls the charge.
~ It's not just a bunch of batteries in a case.

Your most likely problems are (in order)
Bad cells in the battery. ~ Replace battery.
A bad board in the battery. ~ Replace battery.
A bad power board. ~ Replace the power board.

The lifespan of a laptop battery is only 2 or 3 years.
(Regardless of use. They'll go bad even if you just store them.)

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Try to open that laptop. See the thermal fuses on the powerboard closed to Battery clip. Check is it fused or not. if it is fused replace it with a same type.
KaopectateAuthor Commented:
thanks for the info. i have a replacement battery coming. i'll try that and let you know
I had this problem with an old Toshiba, except it was really strange - the battery wasn't that old, but apparently there was some kind of short in the motherboard.  On AC power it was fine, but unless there was something plugged into the PS2 port (it didn't even have to be a device, even a USB adapter would suffice) I couldn't run off the battery.  Really strange, but I guess it means the short could be anywhere.

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