MacBook Air :: Battery Won't Fully Charge?
Dec 29, 2010
I just got a new macbook air, it was working fine for a couple of days until yesterday.
The battery seems to be stuck at 98% - or was. I rebooted because I started to lag, and was updating, then I unplugged it and plugged it back in, then it went down to 97%. What confuses me is the fact it had been plugged in (while shut off), for about 8 hours and it should have been charged by the time I got around to using it. When I right click on the battery icon, it says the computer is fully charged.
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Oct 1, 2009
What is the original(fully charged when new) battery capacity in Mah?
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Apr 23, 2010
is battery calibration as simple as fully charging and then draining battery ,or is there more steps?
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Nov 16, 2009
Just got one recently and can't seem to find info on this...tried searching.
Any ideas what kind of times to expect, from a fully drained battery?
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Jun 22, 2012
This never used to happen before. Only suddenly. Why is this happening? Is it something to worry about?
Info:
MacBook Pro
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Aug 20, 2014
Just bought a new 15 inch retina MBP. My question is...should I immediately charge the battery or let it run to zero first and then charge it? Does it even matter?
Info:
MacBook Pro with Retina display, iOS 7.1.2, Retina, 15 Inch
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Aug 20, 2010
I calibrated my battery for the first time since Dec. When I plugged it in this morning, it took 3 hours to charge all the way, and now it's stuck on 99% full, 0:00 till completely charged, and I'm getting an error when I click on the battery in the menu bar that says "Service Battery". When I click on the error, it tells me that it may not be functioning properly and to take it to an authorized apple service retailer. Before I waste 2 hours by going to the Apple store and back, has anyone else had this problem, and is there a way to fix it without having it looked at?
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Mar 14, 2009
If you look at apple's battery life page it states the MBA battery is removable, I thought it wasn't supposed to be?Battery Lifespan For Apple notebooks with removable batteries ? such as the MacBook, MacBook Air, and 15-inch MacBook Pro ? a properly maintained battery is designed to retain up to 80% of its original capacity at 300 full charge and discharge cycles. You may choose to replace your battery when it no longer holds sufficient charge to meet your needs.
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Jun 2, 2009
purchased a macbook Unibody back in October 2008 when they were released and use it heavily. The battery no longer holds a nice long charge - I get about 2 to 2.5 hours out of a full charge.
The battery has 149 cycles on it, which is obviously high (and correct, I use the hell out of it). With it still being in warranty, is it worth pursuing a replacement battery? Will Apple tell me to go take a hike with the high cycle counts?
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Nov 15, 2010
been using my older MBP with windows 7 for a while and have never notice oddies with the battery until now. Then recently after replacing the failed HD and re-installing Snow Leopard on my 2007 MBP, the battery panel is telling me "Service Battery"; it's battery health according to coconutBattery is fair for it's age (50%).
the unit (battery) has been replaced previously due to being considered 'under performing'. Is Snow Leopard trying to encurate it's users to replace the battery more frequently? If not, does anyone know why this appears? I'm at lost, since it appears to work fine, if not charging completely.
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May 20, 2010
I just want to make sure nothing else is wrong with my Macbook..have never replaced the battery in 3+ years...Always says not charging and once the magsafe is removed Pro shuts off...is completely dead battery the only problem..?
Battery Information:
Model Information:
Serial Number:Sony-ASMB012-3856-4ebc
Manufacturer:Sony
Device name:ASMB012
Pack Lot Code:0000
PCB Lot Code:0000
Firmware Version:0110
Hardware Revision:0500
Cell Revision:0303
Charge Information:
Charge remaining (mAh):0
Fully charged:Yes
Charging:No
Full charge capacity (mAh):0
Health Information:
Cycle count:218
Condition:Check Battery
Battery Installed:Yes
Amperage (mA):0
Voltage (mV):10209
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Jul 20, 2010
So, I randomly clicked on my battery and noticed this "Service Battery" message. I had never seen it before. Obviously, this isn't a good thing. My Mac is 3 and a half years old so I'm not surprised this message poped up. So, I opened Coconut Battery and noticed my current battery capacity is at 65%. Even though charger says it's green, my battery isn't even charging. Should I make an appointment with Apple? My AppleCare expired so i'll have to buy a new battery when the time comes. I'm sure they're not cheap, either.
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Apr 22, 2012
My 2008 MacBook's battery finally died. I have purchased 2 new batteries and neither of them will take a charge.
Info:
MacBook, Mac OS X (10.5.8)
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May 3, 2008
been using my mba for a few weeks now and i noticed that even when fully charged and still pulled into the charged the battery percentage still says 99% i have yet to see it reach and stay at 100% while being plugged in. is this normal? i am on my 5th cycle if that matters.
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Jun 13, 2010
My MacBook, "2 days old", from when I purchased it at the apple store says it is fully charged at 99% battery. I just re calibrated the battery last boot. Is this normal?
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Jun 25, 2010
I have charged my battery & it says it is charged at 97% is this normal? I googled it & other people have this too & say it is.
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Jan 6, 2010
I would like to know the average battery life after each fully charged (especially when you just bought the unit).
I can only get 4:16hrs each time.
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Jun 15, 2010
So today I was using my MBP that I got about a week ago and all of a sudden I got a low battery message. My MBP was plugged in at the time, and had been plugged in for about the last two days. AC adapter was plugged in and very hot i might add. MagSafe never got disconnected. After I clicked ok on the low battery message my MBP just started charging like I'd been using it on battery power and just plugged it in. I know there was no power outage or anything like that, all my computer stuff is plugged in to a UPS that beeps if it looses power and switches to the UPS battery power. I shut my MBP down when I went to work and when I came back it took a good min before it made the powering on noise and the apple appeared. I checked my battery health and capacity through the system profiler and the condition is normal and it has 7 cycles on it.
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Mar 26, 2012
I was working late and let my battery drain while working. The computer shut down. I immediately plugged it in but the light on the power adapter didn't turn on (either orange or green) I tried other plugging it into other outlets. Nothing. I left it plugged in all night. Nothing. No light on the adapter and the computer isn't working.
Info:
Macbook Pro, Mac OS X (10.4.8), Processor Speed: 2 GHz
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Apr 16, 2012
I've heard that if I don't disconnect the charger after my macbook is fully charged then the battery life and performance will get reduced and will be weaker.
Info:
MacBook Pro
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Jun 16, 2012
When I bought the mac book pro I was impressed withthe 7 hours battery life, however I have found that when fully charged mine only has 3hours. Is this a fault or did I miss some kind of disclaimer?
Info:
MacBook Pro
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Sep 17, 2010
"Does it harm the battery or reduce battery life, to use the AC adaptor for extended periods while the battery is fully charged?"Someone answered, "I would have to disagree with the others who say that it hurts your battery & reduces battery life by keeping your AC adapter plugged in with a full battery.I have done extensive research and asked many apple employees and have always come to the same conclusion. They all say to keep your laptop plugged into an power supply whenever possible. Only use your battery if you have to, in those times when you are not near a power supply.
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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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Jun 12, 2012
My battery is fully charged but wont turn on without the charger.It also shuts down after the charger is unplugged.Does anyone have this issue?
Info:
MacBook Pro, iOS 5.1.1
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Jul 7, 2009
I have had my macbook for just 6 months....at the beginning it was perfect with a very good battery life.Now at 99% charge (as it refuses to finish charge to 100%) It now says 10:00 where the battery time is and last less than 30mins.
Also its charge capacity is JUST 708 !!!!It was over 4000 just 6 months ago.Im sure my battery is on its last legs, anybody know if I am entitled to a free one?
Charge Information:
Charge remaining (mAh):708
Fully charged:No
Charging:Yes
Full charge capacity (mAh):708
Health Information:
Cycle count:110
Condition:Check Battery
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Dec 4, 2014
I have a MacBook Pro. Keeps completely shutting down all the time when its fully charged and at random times when it is at 65% for example. Do I need to get a battery replacement? Or do I have a virus?
Info:
MacBook Pro
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Jul 1, 2012
I have a Mac 10.6.8 running Snow Leopard. My battery won't charge: all I get is "Not Charging" in the menu bar battery status; the power adapter doesn't light up either. It's not a problem with the battery—when I put my battery in my friend's MacBook, it worked just fine. His battery, however, wouldn't charge either when it was in my computer. I have tried resetting the SMC several times, following the instructions exactly. I've reset the PRAM, run disk repair, and fixed disk permissions. I don't have the money to take it to a repairman—even if I did, I need my computer every day for work.
Info:
MacBook, Mac OS X (10.6.8)
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Dec 9, 2009
i've had my macbook for a little under a year and i think i may have shortened my battery power. i have a tendency to leave my laptop plugged in long past the fully charged time and allow it to run through the battery till it shuts down. i do this when i accidentally fall asleep listening to music or leave for work and forget it's on or plugged in. how hard on the battery or laptop is it to do this repeatedly? when it's fully charged it tells me i have roughly 4 hours of battery power available. is that the right amount? is there anything i should do to protect the battery? the manufacturer warranty will be up in march, should i take it in for a check up while i may have the option of not having to pay for it?
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Mar 9, 2009
having problem charging battery . sign just shows a cross on it.the lead shows green and will not go to orange,hence it is just working off the mains.Bought new battery, worked for10 days now having same problem.
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Sep 23, 2009
I currently using a Aluminum MacBook 13' but I don't know which way is the best to charge the battery.
- Plug-in AC supply and charge the battery while using
OR
- Take out battery and use AC supply while using
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