MacBook :: Battery Capacity Only 3 Hours
May 4, 2009
I've got a 4 month old Macbook Aluminum 2.4 ghz. I was getting great battery life for the first couple of months. But I'm now getting 3:10 with screen half light, and wifi on, bt off, doing a bit of downloading, etc. I've recalibrated the battery a number of times. According to activity monitor my cpu is hovering under 10% when I'm doing my battery test. This is at least 2 hours less than I was originally getting. Coconut Battery tells me that the original capacity was 4100, but its currently at 4052. Battery load-cycles are at 97 and it says the Mac is 5 months old. Should I take it in to the Apple store under AppleCare?
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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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Jun 15, 2012
I recently purchased my Macbook and I noticed that the battery power is jumping at least an hour every time I check how much battery power it has left. I wanted to know if this was normal.
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Nov 14, 2009
I have a MacbookPro mid 2009 and have some problems with my battery. This morning I noticed that the battery was empty through it was supposed to be in sleep mode during the night. My battery has 97 cycles and has 99% of its original capacity. What could be the cause of this problem ?
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Mar 25, 2012
I've just bought this brand new macbook pro 2 weeks ago and it only lasts this long. I'm not doing anything besides firefox and microsoft word. Why is it so short? Can I get a replacement since it obviously is a manufacturing defect?
Info:
MacBook
Pro, Mac OS X (10.7.2)
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Jun 15, 2012
I bought the new macbook pro 3 days ago--not the one with the retina display; I dont need that--and was hoping to get close to 7 hours of battery life. After 3 days of use, my battery now has an average life of less than 4 hours.
Should I contact Apple about it? I know that the add says battery time may vary, but by 3 hours?
Info:
MacBook Pro (15-inch, Mid 2012), Mac OS X (10.7.4)
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Apr 13, 2009
I just got a Mac Pro Octo 2.93. It has a 4870 card and 4 1tb drives. I also have a Sonnet E4P e-SATA card installed. Would a 780 Watt 1200 VA surge suppressor be enough?
The other question is about waking the computer up. My old G5 Quad (7800 GT card, E4P card, 2 500gb drives and 8gb RAM) would wake up and while the afore mentioned surge suppressor would beep, the room electrical breaker wouldn't be tripped. Using that same suppressor for the Mac Pro results in the breaker being tripped when the computer wakes up. Would getting a bigger suppressor help with this? In other words, does a unit with a bigger battery capacity allow the battery to take the extra load when the computer wakes up preventing the breaker from tripping?
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Dec 21, 2010
How long are you guys getting out of your battery? I was mostly just using the Internet and only got 4 hours. Is that common?
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Jun 30, 2009
I own the newest (see my sig) macbook pro 17". i am doing nothing but web browsing with half brightness and no keyboard illumination and nothing else running with the 9400m graphic. i am only get 3 hours 25 minutes from a full charge
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Jul 12, 2009
My four and a half pound MacBook, even with wonderful battery life is too much to bear. So is the thought of using Windows 98. Otherwise I'd buy a Netbook.
How many hours of word processing can I expect from the latest version of the MBA?
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Aug 5, 2009
How many people have actually got 7 hours battery out of their MBP?
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Sep 30, 2009
I have the 13" MacBook Pro with the beefiest processor and a 500GB HDD. When I bought the machine, I quizzed the guy at the store about a couple of things. In particular I asked about the battery life. He told me apple claims that this machine should have 7 hours of battery life when doing light tasks, but that he personally was able to squeeze out over 8 hours of battery life with simple web browsing.
My problem is that I can barely get 3,5 hours worth of batterylife out of the machine before it gives up the ghost. And this is with the backlight on the display turned down to 1/3 of full brightness. And all I'm doing is browsing text webpages with no flash. Is this normal? Or have I simply overlooked some basic power option that I need to toggle?
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Oct 3, 2009
I turned my computer on at 4:05pm. I made sure it was charged to 100% before I unplugged the power supply. It is now 5:15pm and my battery is already at 14%.The ONLY programs I have had running are:- iTunes - Safari - Firefox (not being used, just on)Other things to note:- Energy Saver set to: "Better battery life" instead of "Higher Performance". - Display brightness set at 13/16I'm getting less than 1.5 hours of battery life while just searching the internet and listing to music.
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Jun 19, 2012
I just bought a new 13" MacBook Pro, and the first time I charged it the battery lasted 7 hours. For my second and third charges, the battery at full charge says it will only last 2.5 hours. My screen is at a low brightness level, and I don't have anything strenuous running--only Safari or Mail...
Info:
MacBook Pro
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Nov 12, 2010
Are you all experiencing about the same battery time as me?
People I know with a 2010 13" MBP doing about the same activities as me are experiencing much longer battery time, around 7 hours.
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Dec 21, 2010
So my Macbook Air 11" was plugged in all night, was using it this morning plugged in. Battery was at 100%. Unplugged it but left it closed all day (7am to 4pm)opened up up and battery indicator says 9% is gone and it's busy charging away now. I have noticed this over a few days now.
Thats a little harsh no? It's supposed to last 30 days or whatever when its sleeping but it won't last a week at this rate.
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Sep 1, 2009
I just got this 13-inch MacBook Pro on Friday. Everything I've read absolutely raves about the battery life. However, I only get about 2 hours per charge; I got waaaaay longer on my year-old MacBook I just sold. I have Firefox and Pages running, but nothing else. Am I doing something wrong?
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Mar 19, 2012
I've tried two brand new adapters and neither work after my MBP is unplugged for a few hours and then plugged back in. Eventually it'll work again, but occasionally it doesn't acknowledge the power source. Will AppleCare cover this?
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Apr 22, 2012
I have got a macbook pro with 2.2 ghz AMD 6750 graphics card. Its around 8 months old. The battery used to last around 4 hours but recently I get around only 2 hours. I have tried to change settings in energy saver to improve battery life but its still the same. I ve noticed that when it shows AMD graphics in about my mac, it takes more battery life. So, I guess its using more battery at that time. Ive read it switches automatically depending on the task but is there anyway to change it in settings?
Also, how is it possible to get the best possible battery life? Should I keep charging and discharging it every now and then.? Currently I unplug the adapter as soon as it gets fully charged and the battery last for over 2 hours (surfing, listening to music, half an hour of video).
Info:
MacBook
Pro, Mac OS X (10.7.2)
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May 1, 2012
I just bought Mac Air 11" three weeks ago. I noticed that the average standby time of the battery is only three hours. I need answer on this because it ain't normal at all.I have to recharge the battery 3-4 times in a day.
Info:
MacBook Air, Mac OS X (10.7.3)
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Jun 30, 2012
rMBP charged overnight and I woke up at 7am and disconnected it, it is 9:30am and my battery is already at 34%. What ca I do? Only running Safari although a good portion of the morning was youtube videos. Still with some YT video playbacks here and there, should it drain this quickly?
Info:MacBook Pro (Retina, Mid 2012), Mac OS X (10.7.4)
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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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Sep 22, 2010
I used an app on my MBP called Coconut battery. it said that my current battery capacity was 94% of what it was since I bought it. I assumed that means those 6% are never coming back and I should start using it more responsibly to make it last longer. I read a lot of forums on how to use your notebook effectively, when to plug it in, how much I should let it discharge etc. After 2 weeks of my new habits, I checked my battery life again and now it says 96%. Is it even possible for it to go back up?
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Oct 20, 2010
I have MacBook Pro about 17 months old (bought new Summer 2008). According to Coconut Battery, my current battery capacity is 96% after 185 cycles (see below). This was taken just after I re-calibrated the battery last night. I usually work the laptop from the battery ... I rarely leave the laptop plugged in unless charging, and when fully charged I always unplug and run the battery down before plugging in again. So, is 96% battery capacity good or bad for a 17 month old MacBook with 185 charge cycles? Is the way I'm charging ok, or is it better to have the MacBook plugged in continuously and have less charge cycles (would this give me a better battery health %)?
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Nov 16, 2010
So I just opened Coconut battery, and it is saying that I have 101% battery capacity. How is that even possible? In the other hand, iStat says 100%.
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Feb 9, 2008
Charge remaining (mAh): 4292
Fully charged: No
Charging: No
Full charge capacity (mAh): 4919
Oddly enough, I can't even reach 4 hours. 50% screen with web surfing/msword.
SDD version.
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Apr 4, 2009
Got a question about the battery in my wife's white Macbook. I just downloaded (and ran for the first time) Coconut Battery and it reports the following info:
Current Battery Charge: 5281 mAh
Maximum Battery Charge: 5281 mAh
Current Battery Capacity: 5281 mAh
Original Battery Capactiy: 5020 mAh
Battery-LoadCycles: 60
Age of your Mac: 8 months
Now, I'm no rocket scientist, and I'm definitely not complaining, but how in the world does my battery have More capacity now than it did when it was new? Is this an error in Coconut? System Profiler reports the same capacity and my research online seems to concur that 5020 mAh was the original capacity.
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Feb 28, 2010
I bought my MacBook Pro 13.3" 5 months ago (according to Coconut Battery) and the battery-loadcycle is already at 51 and 89% battery capacity. Anyway I wanted to know, if I keep my Mac plugged in on the charger will the battery-loadcycles decrease?
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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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May 7, 2010
I've had my Macbook Pro for just over 2 years and recently bought one of the 2010 models. I'm about to sell my old one but when I downloaded Coconut Battery, I saw that my battery holds a lot less charge than it did when it was new: Have I been doing something wrong or is it just low because the laptop is 2 years old? If it's something I've been doing, I don't want to make the same mistake with my new one.
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