Sorry for my horrible english grammar but english is my second language. I have early 15" macbook pro, and I bought late December 2011.Right now my battery cycles is 462 therefore my current max is 85%, 5922 mAh. Is this bad?
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What is the lifespan of macbook pro battery?
- Thread starter macdaddy612
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Yesterday I replaced a battery, which had 1433 cycles since 11/2008 and was down to 47 % of its original capacity.
The batteries built into the current MacBooks are quite good and are promised to keep their capacity over 80% for at least 1000 cycles.
But how come, you have 462 cycles in less than a year? That is almost two cycles per day. You don't need to disconnect the Mac from the power once it has fully charged.
The batteries built into the current MacBooks are quite good and are promised to keep their capacity over 80% for at least 1000 cycles.
But how come, you have 462 cycles in less than a year? That is almost two cycles per day. You don't need to disconnect the Mac from the power once it has fully charged.
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This should answer most, if not all, of your battery questions:
Apple Notebook Battery FAQ by GGJstudios
The F.A.Q. includes the following topics:
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This should answer most, if not all, of your battery questions:
Apple Notebook Battery FAQ by GGJstudios
The F.A.Q. includes the following topics:
- BATTERY INFORMATION
- BATTERY LIFE FROM A CHARGE
- AC POWER
- CALIBRATION
- BATTERY LIFESPAN
- CHECKING STATUS AND HEALTH
- CHARGING
- WHAT IS A CYCLE?
- BATTERIES ARE NOT COVERED
- BULGING OR SWELLING BATTERY
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I have 88% with 771 load cycles on my 2009 MBP, it is on 10 hours a day and I am really careless about charging it. No idea how you managed to do 450 load cycles in such a short time
No. Have you read the FAQ yet? And again, do you charge the MacBook Pro and then after that has finished use it on battery again? Otherwise I can't explain the high cycle count.
We just don't ask questions for fun, it helps us with helping you. But then again, who wants that anyway.
Use it normally and let it discharge once in a while. In other words, don't leave it plugged in 100% of the time.
In addition to Dark Void's reply, also take a look at the battery FAQ linked to in post #2.
2011 MBP, bought around March. 104 cycles, 98% health. I never bother calibrating my battery, and only every now and again use it unplugged.
I use iStat Pro to get my battery health.
My previous MBP (2006, pre-unibody, replaceable battery) had its battery almost completely fail at around 250 cycles. The technology used in batteries today is leagues ahead of tech back then.
PS: If you're worried about battery health, first thing to do is calibrate your battery, to check that the health being reported is accurate.
I use iStat Pro to get my battery health.
My previous MBP (2006, pre-unibody, replaceable battery) had its battery almost completely fail at around 250 cycles. The technology used in batteries today is leagues ahead of tech back then.
PS: If you're worried about battery health, first thing to do is calibrate your battery, to check that the health being reported is accurate.
Hi!
How can you check how many cycles you battery have done?
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Found it
*just needed to look for it...
get iStat or Coconut battery
I believe apple charges$99 for a new battery on 2009 Models, thats what Genius Bar told me , mine is about 2 years old 65% life left ill wait til it hits 30% lol
The built-in batteries in the newer Mac unibody notebooks come pre-calibrated and do not require regular calibration like the removable batteries in older Apple notebooks.