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I have a very strange, for me at least ;), problem with my battery...

The original battery life was a little less than two hours. However at some point, only a few months after I had bought it, the AC adaptor stopped functioning and I used one of those multi-voltage ones for a couple of months until the place I bought it from finally replaced the original AC adaptor. I understand that all this definetely would have taken a toll on my battery.

Now, when I use it on battery, the laptop just switches off when the battery is 83-87% (after 15 mins) with no apparent reason. I have run a million of programs to test the battery, and all of them give me approximately a 25% wear of the battery and an average estimated battery life of 1h 10 mins, which I consider acceptable (I have the laptop for 14 months now).

Does anyone have any idea why it crashes after only 15 mins? Everything is ok when it's running on AC...

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3 Answers 3

You may want to check the BatteryCare application.
Don't know if you have already covered it...

BatteryCare is a software created to optimize the usage and performance of the modern laptop's battery.
It monitors the battery's discharge cycles and helps increasing it's autonomy and improving its lifetime


Update:
Since its a short period to test,
have you checked what happens if you boot to the BIOS screen and wait there on battery?
You may have a battery problem.
This test should at least put you on the right side of hardware/software problem fence.
Since all OS/software is bypassed.

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I installed BatteryCare. It gives 1h 28mins in the beginning, again crashed after 13 mins... :( –  user9016 Aug 29 '09 at 12:39

Can be both memory effect in battery, or as Dynamic I suggested error on software (bios or firmware). Did you googled for this type of battery?

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Yes I did, but not with much luck... It's a Hasee s20 Lithium-Ion. What should I look for in bios or firmware? Sorry if I am too ignorant... ;) –  user9016 Aug 29 '09 at 12:42
    
Yes, look for bios or firmware update. Also - google laptop brand and type. Sometimes it helps. And if you could borrow some spare battery from someone, you will be able to test if this is a computer or battery failure. –  smok1 Aug 29 '09 at 13:02

Since the computer is crashing at 83-87 percent, it could be that something is wrong with the computer software and that the computer is killing it self because it improperly read the amount of battery power left.

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What kind of software could do that? Any suggestions? Thanx! –  user9016 Aug 29 '09 at 11:51

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