MacBook Pro :: Battery Life Has Dropped Suddenly?
May 4, 2012
I used to be able to use my macbook pro all day at school, from 8:50 till 16:00 without charging it at all, no problem. Suddenly however, over the easter holidays (about 3 weeks) It dropped significantly, barely managing 2 hours. During the holidays it was almost constantly plugged in to the mains, but this hasn't caused problems before, I've had it about 18 months and had longer holidays with no change. A few months ago I upgraded my ram from 4gb to 8, but it didn't seem to affect it at the time. (I know it still says 4gb in my info but the forums won't let me change that for some reason)
Info:
Mac OS X (10.6.5), 2.4 GHz intel core duo , 4gb 1067 Mhz ddr3
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Mar 22, 2009
Battery life on my MacBook Air (1.86/SSD) has dropped to less than two hours (for casual web browsing).When new, I got more than 4 hours on a full charge.Also, the battery meter seems to be way off.The machine shuts off with the meter showing 40% remaining. I've tried several full charge - discharge cycles.System information shows battery health to be good.
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Jun 14, 2009
has that happened to anyone? and if so, did apple replace the batt for you?
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May 3, 2012
I installed the new Lion software without any problems, everything runs great. But my battery life has dropped from 8 hours down to 2 hours.I am constantly having to charge the lap top to make it usable - I may have well purchased a desktop machine if I can only get two hours without charge?
Info:
MacBook Pro (13-inch Early 2011), Mac OS X (10.7.3)
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Apr 24, 2012
battery life macbook pro has dropped off dramatically - is this normal? macbook is about 18months old. battery lasts only about 4 hours (not even in use all the time)
info:
MacBook
Pro
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Feb 19, 2012
after upgrade to lion, 2010 battery life dropped from 8-9 hours to 3-4 hours?
Info:
MacBook Pro (13-inch Mid 2010), Mac OS X (10.7.3)
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Dec 22, 2010
My battery needed replacing for a couple of months before i dropped it from about knee level onto a sidewalk. After the drop I got the not charging icon. I thought maybe the battery had just finally died. so I did not panic about the no charge. The laptop works fine when plugged in to power with the old battery on or no battery at all. Not at all when unplugged. When I put the brand new battery on the lap top, the computer shuts down halfway through boot up.
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Nov 11, 2009
i just ordered a late 2008 macbook pro 15 with the dual GPUs (9400m and 9600m GT) and I'm a little worried about the battery life.
-What can I expect if just doing normal every day stuff (web surfing mostly?)
-does watching a movie off of the hard disk use less battery than watching it off a DVD? Is there a big difference?
I'm not a big gamer but would like to have the horsepower to play a game should one come out that I want. I'm also not a big traveler so battery times are only of average importance.
Basically, I'm asking if I made a good purchase considering I have only average concerns for both battery and game performance. They had the new 7 hour battery 15" macbook pro for the same price but it doesn't have the dual GPUs.
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May 4, 2012
I calibrated my MacBook Pro battery and then noticed that the battery life seemed slightly shorter after that. I calibrated it according to this: [URL]
Just wondering if I have done anything wrong...
One more question... What do they mean by "At this point, save your work. Continue to use your computer; when the battery gets very low, the computer will automatically go to sleep." Does it mean that I have to use the computer until it just shuts down or should I shut it down once the "Low Battery" warning pops up?
Info:
Logic Pro, Mac OS X (10.6.8)
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Jul 16, 2009
I have a 13" 2.4 GHZ white macbook that I bought in march of 2008. About 4 months ago I all of the sudden started having problems with battery life. It was very abrupt. I used to be able to take my macbook and sit through 3 classes or more with no trouble in regards to batter life. Then suddenly the battery would drain within a few hours. It has remained that way since.
I've spent the last month or so looking around forums and other places to try and find someone with a similar problem and possible solutions. As a result I've discovered that my situation seams to be somewhat unique.
Using cocoanut battery I tested my battery's capacity and it remains at a solid 98%. How can my battery still be at 98% capacity and have such a short battery life? I also seam to be losing charge while my macbook is closed. How and why does that happen? If I leave my macbook closed for a day or two it can lose up to 25% charge just sitting there!
I've tried loads of things including turning off unnecessary things such as sharing and bluetooth and calibrating my battery, all with no avail.
What is going on?? My battery is too old to be eligable for a recal and I'm not paying $30 just to have a phone conversation with a "Genius". If anyone has any idea what's going on and any possible advice, I would greatly appreciate it.
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Apr 17, 2012
I am getting a very short battery life out of my "New" A1261 battery - we're talking 2.5 hours tops. I've recycled it a few times, but this is no where near the "7" hours that is quoted.
Info:
MacBook Pro (15-inch Late 2008), Mac OS X (10.6.8)
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Jul 11, 2009
This is very odd... What could have happened?
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Nov 18, 2009
I bought a MacBook in late October, and it was my first, so I'm pretty new to Macs. Love it so far!
But anyway, here's my question -- my battery capacity has been at over 100% since I bought it, according to coconutBattery, and yesterday it dropped to 98%. I decided to calibrate it because I hadn't done that yet. So I let it put itself to sleep and left it that way overnight, then recharged this morning. When I first plugged it in, the capacity was at 99%. Now a few hours later, it's at 95%.
So, is it more likely that my capacity has been 95% for awhile and the calibration just helped synchronize the capacity display with the actual capacity, or did I really lose 5% in two days?!
I'm trying not to be totally crazy obsessive about this, but I really need a good battery life, and I want to keep this one going for as long as possible.
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Jun 21, 2010
Last night I calibrated my battery. Let it fully charge for 2hrs, took it off the charger, turned up the screen brightness and keyboard backlight all the way, then proceeded to run the battery down watching videos and whatnot. It went to sleep and I went to bed to let it sit for 5 or more hours. Woke up, charged it up, turned it on and noticed that I went from 97% to 87% (coconut battery says 86%) and I only have 54 cycles. Should I go to the genius bar or something? Or try re-calibrating the battery? Did I do something wrong when I did it? Does it matter how long it takes to run down the battery after it's fully charged?
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Aug 10, 2009
I've had this MBP for just over 8 months now, I'd intially purchased one in november, but the audio out used to give a crackle sound so they replaced the laptop. Moving on to the point - in the last week or so, I've noticed the MBP suddenly seems to get very hot and the fans turn on and thus suddenly becomes very noisy. I was using it on the bed so could appreciate that I may have been blocking the vents, but I've had it on a stand the past couple of days and it still seems to do it for no particular reason. The charger usually always gets ridiculously hot, but the MBP used to stay relatively cool, now the MBP gets hot independently of whether its being charged or not. Moreover, my battery life has gone from what used to last 4 hours, to around 2.25.
Cocunut battery gave the following stats:
Current Battery capacity: 4483mAh
Load Cycles: 222
Age: 8 months
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Mar 5, 2010
So I charged my battery to 100% and then unplugged it from the charger. Thats when the battery dipped to 97% instantaneously. It was very odd and somewhat scary. I just bought this MBP 2 days ago! Anything i might be missing? Is it supposed to do that?
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Dec 29, 2010
I have just bought a MacBook. I have downloaded the Battery Health Monitor and it says obviously that my current capacity is at 100%, with 5,791 mAh. I would like to know how many hours does this value correspond to, because it has certainly not been the highly announced 10 hours battery life
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Jan 14, 2010
A dad dropped my aluminuim Macbook 13" and the system runs fine, no issues with that, but I noticed the battery door had moved and wedged itself so there were gaps at the edges. I removed the door, and try as I might, I can't get it to line up properly.I'm really upset about this, as I've had it for a year now and really looked after it.I have the three year Apple Care plan, and I'm going to an Apple shop on Saturday about my iPhone anyway- do you think this problem is fixable?
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Nov 14, 2010
So today I managed to drop my MacBook a short distance to the ground. I can't believe I did this. The computer was asleep at the time and, as far as I can tell, the internal HDD is perfectly fine. After I dropped the computer it wouldn't at first wake up from sleep. After removing the battery and replacing it, it booted back from the state saved to the HDD. My problem is that my optical drive makes noises now. I never use it, but whenever the machine tries to access it (waking from sleep, launching Disk Utility, etc) it makes noises as if the eject mechanism is running constantly or something else like that. The case also slightly bulges where the drive is. Now, if it doesn't work ever again I will only be slightly sad. I haven't tried to put a disc in it yet, but because of a previous spill by a previous answer the fibers around the opening are so stiff that getting a disc out of the drive when it works is a pain. Any ideas of what might be wrong and how to possibly fix it? I haven't tried resetting the drive, I don't have the time tonight.
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Jul 11, 2009
My two year old macbook pro battery life is getting shorter after recharging. I only get about 40 minutes on a full charge when it used to be 3 hrs. Is it time to replace the battery?
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Jul 20, 2010
how is windows xp battery life compared to windows 7 battery life on mac using bootcamp?
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Sep 5, 2010
I am interested in getting a refurbished Macbook Air. I was looking at the following two models:
Macbook Air Rev B., 1.86 GHz, 2GB RAM, 128 GB SSD for $1349 OR
Macbook Air Rev C., 2.13 GHz, 2GB RAM, 128 GB SSD for $1549
Other than the processor difference of 0.27 GHz, and based on reading the technical specs of each system, I don't see any difference between the two machines. The one piece of information that I couldn't find was the advertised battery life for the Rev. B unit. The Rev. C unit is supposedly rated for 5 hours of wireless productivity. Is the same battery used in the Rev B also or is the battery of lower WHr?
My needs are pretty simple - I would like to get the Air as a small and portable, easy to carry machine for rounds and writing up patient notes, consult notes, etc. It will not be my primary machine, but hopefully a worthy road-warrior. I will be using Windows for the clinical electronic medical record application, but other than that, all other use will be on Mac OS X. Based on this, would you recommend going with the Rev B or Rev C. Money is tight, and this will be a gift from one of my mentors, but I do want to get the biggest bang for the buck. If the only difference between the two machines is processor speed, I can't justify spending 200$ extra just for a 0.27 GHz gain.
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Oct 6, 2010
I have a 2007 White Macbook 2.4 Intel Core 2 Duo Laptop. I purchased it in June 2007 and this is my current battery health. Check the picture below, It's pretty amazing and I don't know how I did it. I'm on my computer almost everyday. Any idead on what I did to get such great battery life after three years? I know people with newer MacBook Pros that have terrible battery life after a year and a half.
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Dec 6, 2008
I bought a 1st Gen Macbook Air in March of this year and I recently have noticed that my battery is not lasting as long as it should, so I checked iStat and it said that my battery life is at 86%. I also have a 12 inch powerbook G4 that still has the same battery it came with and the battery life is also 86% and it is more than five years old. Is this normal for the Macbook Air or should I take it into Apple?
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Jul 18, 2009
I have a quick question about the battery in early 2008 MBP. The laptop is 13 months old, with 273 load cycles, and it is already down to 72% of original capacity. I've read that it should still have 80% at 300 cycles. Is this normal, or is the battery dying faster than it should? I don't suppose there's anything I can do short of buying a new battery right??
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Sep 9, 2010
I got my MacBook Pro on the 1st of September and I'm a bit worried about the battery life. At the moment the screen brightness is one bar and bluetooth is off, which is how I normally have it and the battery life time estimate keeps changing quite a lot. 5 minutes ago it said 5:11 left, and since then it's changed to 7:30, 7:58 and now it's saying 6:50 and is now on 95% and 8:03. I'm not doing anything differently and I don't know why it's doing this.
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Oct 20, 2010
Would be extremely interested in hearing about the battery life of the MacBook Air either the 13.3" or 11.6" from someone using it firsthand.
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Oct 21, 2010
Im a little confused, is the Air Battery life that good? I've taken the following claims from the Apple website. MacBook Air - Get up to 5 hours of battery life on a single charge on the 11-inch model and up to 7 hours on the 13-inch model. 13" MacBook Pro - The new energy-efficient architecture in the 13-inch MacBook Pro gives you up to 10 hours of battery life on a single charge. I understand that Steve Jobs advised that they were using a better way to measure battery life for the Air that reflect real world usage better (WiFi Browsing I think?) so how does this compare to the MBP range? I guess the MBP battery claims were made using another older method, so any thoughts on how the Air's battery life compares to other PC's and Mac's?
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Oct 29, 2010
Anyone give me a rough idea on battery life on the previous generation C2D 2.13 128 SSD model?
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Nov 3, 2010
would like to say that is my first mac and I am loving it. I've got the new 13" 1.86ghz 128gb and the upgraded ram 4gb. Now I've fully charged it and left it on a further 2 hours or so, following the instructions for calibrating the battery. Now that I'm using the macbook, I'm noticing the battery going down fairly quick, already at 88% after 30mins of use. Is it supposed to go down this quick?
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