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Dell 15r N5010 battery & Charging question

post #1 of 7
11/6/10 at 1:12pm
Thread Starter 
Hello,

I recently bought Inspiron 15R N5010 with

i5 M460 - 4 GB ram - ATI 550v 1 gb dedicated -HD 500 5400 rpm

6 cell battery


When I fully charge this battery to 100% and remove the AC supply suddenly it tells me that battery is 96% and if i leave it fully charged to the next day it falls to 93% during windows start up, why this happens ? shouldn't it be 100% or even 99-98% ?

And what about its life time ? with browsing and power saver mode ( extended battery life mode ) it takes 2 hr 15 min to discharge to its 10% with me is this good or there is something wrong ?

last thing I want to ask about the best way to take good care to the battery ? should i remove AC when battery is 100 % ?

thank you
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post #2 of 7
11/6/10 at 1:47pm
I think your battery life of 2 hours + is not bad for the 6 cell battery, but not great either. you are right in that it should start at 100 then 99 etc not just drop to 93 % when you unplug it.


Now this can be a calibration issue, or the battery may not be working at maximun performace.

If this is a new laptop the battery should be covered under a 1 year warranty, I would call Dell as request a repalcement.
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post #3 of 7
11/6/10 at 2:03pm
Thread Starter 

thanks for reply
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post #4 of 7
11/6/10 at 4:14pm
Thread Starter 
How can I make recalibration ?
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post #5 of 7
11/6/10 at 5:13pm
Quote:
Originally Posted by omr_a View Post
How can I make recalibration ?
Your notebook BIOS should have an option to calibrate the battery. If not, charge the battery up, fully discharge it and recharge it again.

cheers ...
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post #6 of 7
11/6/10 at 6:54pm
Thread Starter 
Thanks for ur Help

I did it and its getting better
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post #7 of 7
11/7/10 at 4:57am


cheers ...
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