OS X :: Fans Frequently Cycles On An Off Audibly / Cycles On Off With 8 To 10 Seconds
Apr 7, 2009
While sitting idle, the fan on my Mac Pro (well, I think it's one of the fans) does this strange cycling thing. At first I thought it was a truck way off in the distance, starting and stopping. Then I realized it was my Mac Pro. Sitting with no apps running, one of the fans frequently cycles on an off audibly.
I recorded it. Have a listen. You have to listen past the low frequency rumble of the Mac and you'll hear the fan spinning up and then spinning down in cycles that are typically 8 or 10 seconds, sometimes shorter.
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Sep 5, 2010
yesterday, the battery health went from 96% to 54%, and now every day 1% goes to the Creator
Yes I calibrated regularly
Maybe it has to do with $
Live long and prosper was the initial idea, wasn't it?
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Nov 15, 2010
I just received my MBP yesterday. Installed a new HDD right from the get go.
Though, I read something disturbing about load cycles of an HDD which is not native to a MBP. Apparently the load cycles can get really high which decreases the lifespan of an HDD.
Now, obviously I don't want that to happen and took a look at my load cycles. The MBP has been on for about 3-4 hours now and the load cycle is at 224.
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Dec 2, 2010
My Macbook's battery has done 902 cycles and is on 92% health.
I was just wondering - even though I know it's impossible to predict the life-span of a computer battery - a) how accurate that reading is (I use the iStat Pro widget) and b) ignoring the health reading, is it time to buy a new battery when it hits 1000 cycles?
The health has gone down from 100% to 92% in the space of about 3 months? Maybe more. Is that a sign that I should change it?
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Dec 6, 2010
Ok, so I have a 2009 uMB 2.4 with 4GB/500GB and my battery cycle count with coconut Battery states it is at 418 Cycles and the Life states 96%, my question is?Is that good
How many cycles should I get out of the battery
This is the unibody MacBook the one they are calling the Classic uMB and I have had this since it was new, I bought this around February 2009, so just under 2 years old.
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Jan 26, 2009
I know that the new 17 MBP can go through 1000 cycles or so of battery use. But what can the 13" MBA go through?
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Jun 30, 2009
hey guys iv never metioned it but my battery on my MBP came with about 15 or more cycles , is that normal?
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Oct 10, 2009
how many cycles is expected from a aluminium 13'' MBP battery?
im currently on 21 cycles. and that is in like a month and a half maybe 2 months
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Jun 14, 2012
Here's the battery info:
Cycles 47
Current Max 1269 mAh
Age 3.1 years
My older battery (this is my second one) is in much better shape than this one.
Info:
MacBook Pro, Mac OS X (10.7.4)
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Aug 23, 2014
The MacBook Pro is a 13' unit. it was replaced with a SSD drive. The battery has 327 charging cycles on it. Sometimes when using battery only the machine will start to boot up, will get the logo then immediately shut down, screen goes black then the process continues, once I connect the AC power the Macbook boots correctly. Should also mention that the circuit board that controls the charging of the battery was also replaced (outside of warranty period) several months ago as well.
Info:
imac g5, Mac Mini, MacBook, Mac OS X (10.5.8)
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Sep 3, 2010
My AppleCare expires on Monday September 6th, and I am wondering if my 87% capacity at 51 battery cycles suggests I should visit an Apple Store this weekend? The closest store is around 25 miles away, so if I would be wasting my time, I would rather not take the trip. My concern is mostly based on my warranty ending. This is a 2009 13" MBP.
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Dec 12, 2010
Just hit 500 load cycles on my battery and still going strong 99% capacity and I just re calibrated yesterday. I know this isn't a misread because I monitor my battery roughly every 2 weeks or so. Macbook is the Macbook 5,2 mid 2009 version, coming up to its 2nd birthday
Battery Information:
Model Information:
Manufacturer:SMP
Device name:ASMB016
Pack Lot Code:0000
PCB Lot Code:0000
Firmware Version:0110
Hardware Revision:0200
Cell Revision:0102
Charge Information:
Charge remaining (mAh):4977
Fully charged:Yes
Charging:No
Full charge capacity (mAh):4977
Health Information:
Cycle count:503
Condition:Normal
Battery Installed:Yes
Amperage (mA):0
Voltage (mV):12541
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Dec 20, 2010
I'm currently using MBA 13 inch new generation. I knew batteries of Apple notebooks have a 1000 cycles battery.
I wanted to prove that myself, so I looked at apple.com/macbookair but could not find that information (even though I find it for macbook pro)
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Dec 31, 2010
Hello people, I was just wondering if my Macbook Pro 13' (2010) battery is currently healthy? It has the health of 95% and 95 cycles. I purchased it 2 months ago
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Jan 27, 2009
Just wondering, but how rare is it to have a battery that lasts 3 times longer than the "rated cycle amount"? Apparently this battery should have been dead 600 cycles ago... I am finally now noticing a slight loss in overall battery life.
I have used this MacBook 100% of the time since the day I have gotten it over two years ago. Is this why it has lived so long?
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Feb 26, 2009
My macbook battery broke 500 cycles, and the battery life was at about half what it used to be so I ordered what was described as a brand new battery from Westronics, through Amazon. I put the new battery in the machine and checked System Profiler, and it is telling me that the battery has 15 cycles on it already. iStat Nano says the same thing. Is this normal for a new battery to have cycles on it already? Or did I not get a new battery? I just want to make sure I got what I paid for.
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Jan 3, 2010
It's in a white Macbook that is 44 months old. Is there any hope for my battery?
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Jan 17, 2010
I apologize if I missed a similar problem, but i think this is an unusual thing. Ok, so occasionally after my uMBP has been on a while (say, 1.5+ days?) sometimes when doing little more than doing a little web browsing, I'll see in both Activity Monitor and iStats that i'm using about 60-70% of my processor, but there is no visible process that is taking up the CPU. the issue is temporarily resolved by logging out or restarting. Does anyone have any ideas? I've tried running what available malware scanners there are for the mac, but nothing has come up.
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Mar 1, 2010
I get ready for the next disappointment tomorrow (maybe no MBP update) and looking out for a MBP at eBay. I've found a good one (August 2009) 2.53 GHz, 4 GB RAM, 500GB HDD etc. for round about 900� (1.200$) (in Germany we pay 1533� for this model so round about 2088$). The guy sent me a screenshot of the battery capacity which is 87% (4762mAh) after 56 loadcycles. Is that acceptable? IMO it's a bit too low - what do you think? Maybe I'm going to buy a AppleCare Protection Plan afterwards ... would the battery be covered?
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Aug 13, 2010
SO I just bought a mbp 13, I been trying my best not overcharging, by charging it fully then let it drain to the last 30min or so before charging it fully again.
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Mar 21, 2012
i have a MBP with 225 reoad cycles and my battery is already on 78% I WANT A NEW BATTERY as your guarantee says. How can i get in touch with somebody?
Info:
MacBook
Pro, Mac OS X (10.7.3)
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Nov 30, 2010
I received a Black 2.4GHz MacBook that I bought on eBay a few days ago to add to my collection. The battery reports 828 charge cycles, and has about 82% of it's original charge capacity, and still lasts a good 2.5 hours. What I want to know is, is it unsafe to use it like this? Apple Battery FAQ doesn't not really say when to replace the battery, besides when it doesn't hold that good of a charge anymore.
Should I be worried?
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Apr 20, 2008
battery shows 4 cycles and @ 95% - normal? Last night it was 97%.
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Feb 17, 2009
I am at 99% and 82 cycles and I've own mine for 2 months now. This is my very first mac so am I OK for now?
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Apr 7, 2009
I have a PowerBook 12" on Tiger, 10.4.11. It is having occurrences of waking despite the closed cover. The cycles of wake/sleep are sometimes quite fast (seconds). I fear thrashing the HD. Here are excerpts from system log, followed by console log. The latter shows repeated instances of: AlsPB12 /usr/sbin/AppleFileServer: AppleFileServer ResetATalkService race detected. Which seems to implicate ATalk - is that AppleTalk? What relevance does AppleTalk have in today's systems?
System.log:
Description: System events log
Size: 1.04 MB
Last Modified: 4/7/09 8:43 AM
Location: /var/log/system.log
Recent Contents: ...
Information:
iMac 2.8GHz 2008
Tiger on G4/1.25DP FW800
Mini-1.66GHz; PB-G4 12
Pismo G3
Mac OS X (10.5.6)
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Aug 5, 2009
I noticed this in my previous Rev. A. After 100 cycles, my health dropped from 98% -> 92-94%. Now on my Rev. C, I'm at 136 cycles and my health dropped from 99% -> 92%.
I calibrated my battery already, but is the MBA's battery just purposely dropping health after a certain cycle count or what?
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Oct 26, 2009
Is my battery defective or is that normal. My battery is at 32 cycle count, 5 month old and 96% according to coconut
It's the new MBP "13
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Jan 29, 2010
I've never full drained the battery below "50%" 61 times so I don't know why it says I've had 61 cycles. I always leave my laptop attached to the AC adapter. Is 61 Cycles with 99% battery life good for a 5 month old laptop?
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Mar 18, 2010
I noticed that my MacBook doesn't run as long as it used to before I have to charge it again. I downloaded CoconutBattery, and it tells me that my battery is down to 91% of its original capacity after only 30 charge cycles. It's 5 months old according to CB, and I bought it new on Dec. 24th. (It's a Unibody White...) Is this normal, or should I take it into the Apple Store for a replacement?
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Mar 18, 2010
can't find the number of battery cycles?
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