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Battery capacity down to 94% after 3 months? Not good!
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Moderator  Join Date: Oct 2001
Location: San Jose, CA
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I must be treating my battery really badly because my brand new i7 15" MBP's battery is already down to 94% capacity (6518 mAh out of 6900)! Coconut battery and Watts indicate this with only 10 charge cycles.
I'll admit that I do not "let the juices flow" as I guess I'm supposed to. I'm attached to AC at home, bring it to work, and attach to AC there. If this capacity drops down to 80% before 1000 charge cycles, that's bad. Would I get a battery replacement if it's within the first year?
Steve
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Celebrating 10 years and 4000 posts on MacNN!
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Posting Junkie
Join Date: Mar 2004
Location: UK
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Try reconditioning it. Let it run all the way flat (until it forces sleep) then charge it all the way up uninterrupted. Batteries can't actually check how much charge they have in them, they just track how much goes in and out. This can cause irregularities. 'Reconditioning' may be more accurately thought of as recalibrating.
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I have plenty of more important things to do, if only I could bring myself to do them....
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Moderator Join Date: Oct 2001
Location: San Jose, CA
Status:
Offline
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I've tried recalibrating.
I'm sitting here at the airport right now and my battery has dropped from about 93% down to 84% in about 15 minutes. This can't be right. Time for Genius Bar?
Or am I panicking over nothing?
Steve
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Last edited by ibook_steve; Aug 18, 2010 at 10:43 PM.
)
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Celebrating 10 years and 4000 posts on MacNN!
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Fresh-Faced Recruit
Join Date: Mar 2010
Location: Downers Grove, IL
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Just go to the Genius Bar and have them replace it. I wouldn't risk running out of warranty and then have the battery go kaput... [happened to me :/]
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MacBook Pro 15" Intel Core i7 2.66Ghz/4GB/GeForce 330GT M 512MB/Corsair 128GB SSD
Mac Pro coming soon
iPhone 4 32GB Black
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