Apple :: Unibody - Battery Life - Fans Were Not Spinning Up To Counter The Increase In Heat
Feb 5, 2009
my new 15" unibody.
I was having bad battery life (under 2 hours) And noticed my fans were not spinning up to counter the increase in heat.
I called Apple and they had me reset my PRAM. With that done the system worked fine for a day.
Currently my Unibody will not stay connected to any wireless networks. I have tried 2 of my own routers and a friends. It will not stya connected, either on AC or battery.
Next issue involves CPU hitting 95c before the fan go past 2k rpm. Try and and play wow and the system locks up when the CPU hits 98c and the fans are still at 2k. Tried reseting the PRAM again, no luck.
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Apr 14, 2010
1.I really didn't find much info on the (now not so) new white unibody Macbooks, expect some items for sale. And please, don't tell me that just buy the aluminum model for the extra $200, my question is strictly from an engineering point of view: heat. We all know aluminum Macbooks are quite hot, right? But how does the white unibody compares to the aluminum regarding heat issues?
2.What might be the reason that the whole bottom of the white unibody contcts the table beneath it, compared to the aluminum model, which has four rubber contact points on the four corners?
3.On the other thread I read a dedicated graphics card does not really add to battery consumption. Can you confirm that?
My main usage profile is office, web and seeing (HD, if available) Youtube videos. This one is rather a 15" vs. 13" Pro question, and half hypothetic. Let's say, all things are being equal on two models, the processor none the least, the only differences are one model has the integrated Nvidia, the other the integrated Intel plus discreet Nvidia combo, which one would serve me better, regarding performance and battery life? The discreet graphics would at least turn on when playing the HD videos?
4.Running native Windows (7 or XP) still suck on Macbooks, because of the drivers?
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Mar 6, 2009
I have just bought my Unibody Macbook. I haven't received it yet, but I was wondering if anyone has any tips on undervolting, buying a different battery, etc. to get more battery life on it. I really need it for school and I don't always like sitting next to the plug in a classroom.
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Feb 2, 2009
I have recently purchased the unibody 15.4", and I can't get more then 2 hours of battery life while web surfing on wireless with Screen brightness at half and backlighting turned off. I am running the 9400m also.
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Aug 13, 2009
I know that keeping a battery on charge after it is fully charged can decrease its battery life by 30%, but I also know that Apple's batteries automatically stop charging when they have reached 100%, wait till the battery drops to 97%, and then start charging again. I need to know if the battery life will degrade if I keep the laptop on charge...
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May 26, 2009
1) What is the battery life you get on Windows 7 compared to OS X?
2) Does the right click (bottom right area) work in Windows 7? What about the double touch right click?
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May 31, 2010
I just got a new envy 15 the other day. There is a high pitched noise that is kind of annoying, but I'll be using the laptop at a cafe 90% of the time and probably won't notice it. I'm pretty happy with the laptop otherwise.
Does anybody have any tips on increasing the battery life? Other than screen brightness and lowering the "maximum processor state" in the power plan, are there any other settings i should be aware of? I've read posts claiming to have increased battery life of an i7 envy 15 to 4-5+ hours. I think I'll be pretty happy if I can squeeze 3+ hours on my i5...
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Apr 21, 2010
Just wondering if anyone has had any heat issues with the new i7 processors in their MBP's, and whether or not it would be worth NOT opting to get the i7, and just sticking to the i5 because of heat issues?
I would ask about battery life, but being a mac I imagine it gets at least 5-6 hours whether on an i7 or an i5 anyways correct?
I am still debating different laptop brands, but leaning towards a MBP upgrade now. I can get a 15" i7 antiglare, for only $5 difference from a 17" i5 antiglare so... just wondering if there is any significant advantage with one over the other.
I'd be doing graphics/3D work, and a game here and there perhaps.
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Aug 23, 2009
I play games in windows but I can't seem to find a way to control the fans. Also, When ever I switch from windows to mac, my time changes.
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May 25, 2009
I got a XPS M1730 with Dual 9800GT.
It is a great computer and I love it.
However, When I run HWmonitor, I get 73-76F at idle. And It has been running very hot..
I had this laptop for about a week and it's always like that.
So, I looked underneath the laptop and seems like the two GPU fans are not spinning at all.
Is this normal or something wrong with my unit?
Do I have to open it up and check the fan cable? Or is it something wrong with the bios? Only thing I did to this laptop is update the driver to nvidia's 185.85
Back of the laptop is so hot that I can't touch it with my hand..
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Feb 15, 2010
I've had my MBP unibody 17 for almost a year now... it's been heating up for the past couple months (or longer?). I really haven't thought to talk about it until now.
Basically, my fans start to kick it quite often after just regular web browsing. It happens quite often if I start streaming a video or watching youtube. I don't have many apps open either. My laptop is in a cool place on hard surface that doesn't absorb heat easy either. I almost want to by a fan to put under it.
I installed SMC fan control and "fan control" since the beginning. I currently have fan control only.
Is there anything specific I can check that causes the laptop to heat up or if I messed with any "internal" settings by accident to cause it to heat up?
I almost want to think I to think it's something I downloaded or something I screwed up. My brother has the exact same computer and it runs around or under 50 all the time while running more programs than I do at times.
I'm just browsing right now with adium and and chrome running and it's running at 62 degrees.
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Feb 21, 2010
I spent a couple hours reading through dozens of pages in the 3 separate HP Envy 15" Owner's Lounge threads and couldn't find a definite answer to the following questions--there was usually conflicting info.
In total there's over 1k pages, so despite considerable time spent perusing and searching perhaps I missed a definite answer somewhere in there. So hopefully, it's okay if I ask this outside of those threads for a conclusive answer:
1) Every review I've read mentioned the heat issue with the i7 system. Has anyone read an official review or gathered a consensus from users if the i5 version of the 15" model has lesser heat issues?
2) Does the i5 have graphics switching? And does the i7?
3) The i7 has very short battery life, which dissuades me from getting it. Is the i5 any better? What sort of usage are most i5 owners getting out of it?
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Jun 20, 2009
i would just like to know how hot the 15 inch macbook pro unibody runs after being under load for a few hours. I will be playing games 3-4 hours straight some nights.
i heard it runs at 70 degrees celsius under load and it stays around there, but if its running that hot:
Is it uncomfortable to use on your lap? will you want to take it off your lap after a few seconds?
Any tips on keeping it cool? i dont understand how a notebook cooler helps that much, as there are no intakes on the bottom of the notebook. And because of that how does keeping the macbook on your bed affect its temps at all? as long as you keep the vents sucking air in and blowing air out clear shouldnt it not matter?
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Jan 24, 2010
Please specify which MBP you have and whether you use Boot Camp, Parallels, or Fusion.
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Jun 6, 2009
I'm new to OS X, got my MacBook the other day, and I can hands down say it's my favorite OS I've dealt with. It's so much simpler and just plain awesome. Okay, I'll ask my question before I get carried away...
So, I did some searching on Google after I noticed that my battery likes to hang around 99%. Apparently this is common. My question is, is this a BAD thing? When I see 99% I'm picturing that the computer is constantly pushing power into the battery so it can reach 100%. I mean, isn't that how fires start?
Simply put, is my MacBook trying to charge the battery consistently when it is not at 100%?
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Sep 24, 2009
every time I'm running my uMBP from battery, I'm constantly checking the amount of time I have left and trying to figure ways to increase that time. Yes, CONSTANTLY. Whenever I can, I'm using the a/c adapter.
Even though I may see 6-7 hours left, I'm still not satisfied.
And just about every time I am running the battery, I'll open up Coconut Battery to make sure I still have a 100% charge hold left....even though my umbp is 7 weeks old with only 4 cycles...
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May 4, 2010
I'm not even coming close to this with my 2010 macbook pro 13 inch unless I turn my brightness down to 50%, on reboot it defaults to 100%. This is when doing nothing or just surfing the net. I can get about 7 hrs, with my laptop screen turned to 50%. Any tweaks available? I'd love to know how Apple came up with 10 hrs.
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Aug 20, 2009
i have a PowerBook G4 15' Aluminum edition, it gets about 1 1/2 to 2 hours on power saving mode sometimes way less depending if it stays on during the whole class. I was wondering if this was normal or if a new battery would give me longer life?
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Jul 11, 2009
I have a Macbook Pro I bought in summer 2007, and I'm have concerns about its battery life, and so I was wondering if anyone could help me please.
I hardly ever use my laptop away from my desk, so it's plugged in all the time. While plugged in, I still keep the battery in the laptop. It's only been through 10 cycles in 2 years, and I know I should've calibrated it monthly, but I didn't and I really wish I had now. Right now, when unplugged, my battery only lasts about half an hour. I downloaded coconutBattery and apparently, my original battery capacity was 5600 mAh, and now it's only 543 mAh.
My question is, did I mess up the battery myself by not calibrating it, or was the battery defective in the first place? :S Or is it just old?
I'm a real n00b when it comes to computers....but if this ISN'T my fault, the laptop is under an Apple Care Protection Plan, and so would that cover the battery? Is there any way to fix it without getting a new battery?
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Jan 23, 2009
I recalibrated my battery 2 days ago and my battery life dropped dramatically afterward to 89%, I don't know why. I only did 48 cycles for the moment. Is this normal ?
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Jan 21, 2009
Two questions:
1) Is it normal for the battery to take several hours, i.e. 4+, to fully charge after being mostly depleted? For example, my battery says it's like 95% charged, yet has 40 minutes to go.
2) Is it normal for the battery time-left indicator to jump all over? When I run it on battery, the amount of time remaining constantly changes. It goes from 5 hours to 3 hours to 4 hours, etc, etc.
The first time I ever used the computer when I got it in December I charged it up fully, kept it plugged in for several hours, then let it completely die out overnight and fully charged it again.
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Sep 17, 2009
I had received my refurbished MBP last monday, and have been using it frequently since then. It takes on average 4-5 hours to charge it fully, which is ridiculous in my opinion. And the most I can get it to last is around 2:40 with lowest brightness, microsoft office 2008 open, bluetooth off and wifi on. Shouldn't I be getting more battery time?
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Aug 7, 2009
As a new 13" Macbook Pro owner, I am wondering if upgrading with non-Apple certified HDD and RAM components could drastically effect the battery life.
I am told that there is firmware in the HDD of the one that comes with a Macbook that is necessary for maximum battery life. From comparing two HDD's in my Macbook (one certified and one not) I think this might be the case. What is your experience?
Also, does there exist Apple certified RAM and, if so, does it offer more battery life compared to non-certified?
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Aug 21, 2009
I just picked up a new 13" MacBook Pro today and I was wondering what the best settings were for maximum battery life without turning the brightness down too low. This is my first mac so if you could sort of guide me through the process of changing the settings.
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May 26, 2009
I have the 15" Macbook Pro 2.66 with the 512mb graphics and I was wondering if there are programs out there that I can adjust the battery options more? All I can really do is go from Performance to Better Battery Life (I assume it disables the graphics?). also any must have apps would be great for my new macbook pro. (I have xupport already)
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Mar 15, 2009
I've noticed a considerable decrease in battery life of my 2008 Macbook white after the 2009.001 security update. Earlier I used to get around 4 - 4.5 hours on normal usage, but its down by about an hour now. Its only around 9 months old, and the battery cycles is just 20.
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Mar 2, 2009
This laptop is advertised as having 8 hours battery life, but even when i turn my screen brightness right down and run in power saving mode i can just get 6 hours, is this normal or is there a fault with my laptop?
17"
2.93 ghz c2d
Intel X25 ssd
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Aug 22, 2009
Does anyone know if it's possible to install the new mid-2009 Macbook Pro 15" battery in the late 2008 macbook pro 15"? I looked at the pictures and it seems to be an identical fit, just no screw to secure the battery but from what I see all it is is a simple change in battery./
Has anyone debated trying this? I would love the extra battery life and I don't see why we couldn't do this aside from maybe the charging being 80w compared to the 73w for the new battery...
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Nov 19, 2009
what the battery life of the new(er) unibody macbook pro 17 was like under windows. I read a review somewhere that says the new macbook pro (the one with advertised 8hours battery life) managed about 1 1/2 hours in windows, is this true? the only reason I'm looking at the 17inch pro is because I program a lot in Windows and Linux, and 17inchs would be fantastic to display more code, but I still need good battery life. portability is no issue, as I'm a big guy and I carry 2 computers with me right now anyway. any other cons to installing windows on this beast?
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Jan 18, 2009
I do predominantly web surfing, editing photos and rendering videos on my Macbook Pro.
I have it set for Better Battery Life.
When should I set it up for "Better Performance"? Gaming?
What do you have yours set up with and what applications are you predominantly running? If you are running Windows, also, does running with Better Performance make a difference?
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