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Notebook battery discharging increasingly rapid

post #1 of 10
10/3/10 at 1:51pm
Thread Starter 
I got this laptop at the beginning of summer, when my laptop broke down. It had been used off and on for a year then. Back then, I could read word documents for 3 hours off charger at energy saving mode. It has been connected to the wall socket for most of summer though, because I used it for very long periods, and during nights it downloaded stuff for me. Now I notice that if I take it off power, it only has 20 mins battery capacity before it shuts down, doing exactly the same thing. Is there anything short of replacing the battery I can do to improve the battery life? My previous laptop got the same treatment and never had any problems in the almost 2 years of its life, untill a certain person *coughmomcough* dropped it to the floor and the screen broke.

battery specifics (don't know what is useful)
acer tm00741
rating: 11.1V 4400mAh
charging current: 3.52A
Lithium Ion battery
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post #2 of 10
10/3/10 at 3:01pm
Sounded to me the battery is failing. You can install BatteryMon (free trial) and check it out. Does the notebook still have any warranty? Battery usually carries one year warranty from manufacturers.

cheers ...
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post #3 of 10
10/3/10 at 3:31pm
Thread Starter 
thanks for the quick reply. I should check it out, how should I do that? I.o.w. : what should I look for?
I noticed it dropped from 90% to 5% using the windows-supplied thing in the lower right corner
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post #4 of 10
10/3/10 at 6:34pm
Quote:
Originally Posted by Liza View Post
thanks for the quick reply. I should check it out, how should I do that? I.o.w. : what should I look for?
I noticed it dropped from 90% to 5% using the windows-supplied thing in the lower right corner
The Windows base tool is more than enough to tell you the general performance of the battery. Dropping that quick is a good (bad) sign of a failing battery.

Battery Monitor - just use the trial period.

cheers ...
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post #5 of 10
10/3/10 at 6:43pm
Thread Starter 
I found the tool. I noticed it went that way with charging as well. Now I'm charging it till 100, then pulling out the plug, and when I get the 10% message, plugging back in. I noticed that the vertical part of the graph became shorter everytime. it dropped first at 90, rose at 23, dropped at 80, rose at 29, dropped at 70, rose at 35, then I fell asleep for an hour or 2 while it was still charging, and it went back to 95-15. So I'm repeating this for another 2 hours while I wait for the emails I should be getting, and then taking the battery out overnight. the only problem I have is that I get no alert when it;s fully charged, so I need to keep an eye on the graph.

Edit: after 95-15: d65-u45-d55-u51, removal battery, 93-13
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post #6 of 10
10/3/10 at 6:58pm
That poor battery of yours had it, the way you described Any chances for free replacement?

cheers ...
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post #7 of 10
10/3/10 at 8:10pm
Thread Starter 
don't think so. though I have other things more important than a crappy laptop battery. It has a relatively simple solution, sit near a wall socket. Other things in my life are more complicated

though I managed to stretch the 'action time' from mere minutes to about half an hour, 40 minutes. Which is enough to take the laptop downstairs for a bit or using it at the table for homework purposes.
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post #8 of 10
10/4/10 at 1:23pm
Quote:
Originally Posted by Liza View Post
don't think so. though I have other things more important than a crappy laptop battery. It has a relatively simple solution, sit near a wall socket. Other things in my life are more complicated

though I managed to stretch the 'action time' from mere minutes to about half an hour, 40 minutes. Which is enough to take the laptop downstairs for a bit or using it at the table for homework purposes.
That's the spirit Still don't trust too much of that battery life "stretch". Put it in standby or sleep before moving it around to protect your data.

cheers ...
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post #9 of 10
10/4/10 at 7:16pm
Thread Starter 
after power drop, it still has enough left to warn me to plug it in, and go into sleep from itself. I need to save frequently because I have some annoying people running around here I don't trust with open documents :P but thanks anyway :P
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post #10 of 10
11/13/10 at 10:18am
Quote:
Originally Posted by nick48d View Post
maybe it need new one
Symptom?

cheers ...
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