MacBook Pro :: Battery Slowly Loses Charge While Plugged In
Sep 2, 2010
just curious, does anyone else's MBP's battery slowly lose charge over time even though it's plugged in? I've got a 2010 MBP 13". Mine only is ever at 100% right after I have used the battery and just recharged it. then it will slowly lose that charge over time until I unplug it, use the battery enough for it to actually charge the battery when I plug it in. (Oh, and coconut battery has never said it ever had 100% full original battery capacity, best it ever said was 97%).
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Aug 7, 2009
my laptop is less than a month old, but i've noticed when it's plugged in (i don't run on battery power), the battery percentage is going down. not the capacity, but just how much charge the laptop has. (excuse me if i'm using the wrong terms). and in about one-two weeks, the battery goes down past 95% and it starts charging itself.
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Nov 13, 2010
I just bought a new MacBook Pro with a solid state (flash memory) disk. The battery life is good while I'm using it, but if I leave it with the cover off for a few days (asleep, I assume), it'll be mostly discharged when I open it up. I assume this isn't normal - it shouldn't be losing that much charge when closed and hibernating. I don't have "wake for ethernet access" checked, if that makes a difference. What's going on - why won't it hibernate?
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Sep 29, 2009
I thought when you shut down a mbp, that means you power it off completely and no drainage should occur.
Every time I turn off my mbp late at night around 1am and turn it back on in the morning around 10, I seem to lose about 1% charge. I'll have 100% go down to 99% or I'll start off at 99% and in the morning, wake up to see its at 98%.
Also, I recently downloaded the Deep Sleep widget and tried it out. Going into Deep Sleep actually preserved my battery charge at where it was.
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Jun 19, 2014
So i noticed I had no charge left in my little battery icon on my Macbook Pro so I plugged in my charger. There is a little green light on my charger but it is not charging the macbook pro.
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Jun 21, 2014
I have my MacBook Pro won't charge while connected to the wall charger but still acknowledges it is connected and appears to be running off of the wall itself. no LED is on either. Just began happening all of a sudden. No Warning.
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Jan 31, 2008
I recently bought a new battery for my ibook G4 and thought that it would solve the issues I was having with my battery. When I went to plug in the power adapter, the battery icon does not change to show that it's charging, so I borrowed a friend's because I thought I needed a new adapter, but it's still doing the same thing. So I've ruled out that it's not the battery or the adapter.
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Nov 3, 2006
for some reason my powerbook battery charge slowly goes down even while it's plugged in. The power light is green as if it's fully charged but it goes down about 1% every day and then if i unplug it and plug it back in then it starts to charge, goes up to 100% like it should and then starts all over again. It never used to do this so i don't know why it's doing it now.
It started happening around the time apple had that huge recall so then i got it replaced but it still does it so it can't be the batteries fault (at least it doesn't seem likely)
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Oct 20, 2008
I have an iBook G4 Mac laptop. It's a model that pre-dates the duel cores that are now standard. I'm having an odd battery issue and I'm wondering if my battery is fried. The other night the computer was run on battery power and was reduced to 25% capacity. Normally this is fine. We just leave it plugged in and the battery charges. This time the battery is not charging. The ring around the power cord that connects the computer is staying green and the battery's capacity is at 28%. I left it plugged in over night and there has been no change in the battery's charge level.
If I disconnect the power cord and re-connect it the light will turn orange to indicate it's charging, but a few seconds will go back to green or blink between green and orange. I have re-started the computer twice. I have switched power outlets and have brought the laptop into the office to see if it was a power supply problem at my home. I even switched out power cords. I recently bought a spare cord when my original cord became frayed around the power connector. Is this a sign my battery is finished and needs to be replaced?
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Nov 13, 2010
I just bought a new MacBook Pro with a solid state (flash memory) disk. The battery life is good while I'm using it, but if I leave it with the cover off for a few days (asleep, I assume), it'll be mostly discharged when I open it up. I assume this isn't normal - it shouldn't be losing that much charge when closed and hybernating. I don't have "wake for ethernet access" checked, if that makes a difference. What's going on - why won't it hybernate?
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Oct 17, 2009
I use my MBP 15" (the new one), as my primary machine in my office. I sit by my best usually 10-12hrs a day working on it.
I am trying to figure out what is best to do, keep the AC plugged in or have it un-plugged and only plug it in when the battery is drained (or less then 50%)? I have tried different experiments, plugged in, not-plugged and time is about the same for life of the battery. The true question is, how is is best to do it for the health of the battery.
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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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Apr 12, 2012
my mac book pro won't charge even when plugged into a known good outlet, 'Connection to computer is solid power cord is in good condition. This computer is about 1 month old
Info:
mac Book Pro, Mac OS X (10.5.2)
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Dec 4, 2014
I have been using my MacBook pro for a lot of film editing and motion graphics. Recently, I noticed that my battery kept going down, even when charging. I thought nothing on it and kept using it. After around 4 hours, the battery went from 90% to 23% WHILE plugged in. This got me nervous. When I plug in the MagSafe charger, the light comes on and I get the "charging" symbol in my toolbar. The light turns orange and then, after a few minutes, the power starts to go down instead of up.
The laptop does charge, but only when I am running no application, when the screen is shut or when the laptop is powered off. Bear in mind that right now, I am on Firefox, that is the only application open, yet the charge is still going down. I assumed it was because I was using Premiere CS6, After Effects CS6 and Cinema4D, but now even when they are not open, the batter will not charge when I am using the laptop.
I am currently only running Firefox and Finder. Now the laptop is charging as usual. However the second I open up Premiere, After Effects etc, it goes down.
Info:
MacBook Pro, Mac OS X (10.7.5), 2012 edition
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May 23, 2012
I bought a new battery for my 4 year old macbook aluminum, but the new battery loses power almost as fast as the old battery. Is there something wrong with my computer or is it the battery?
Info:
MacBook Pro, Mac OS X (10.7.4)
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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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Oct 5, 2010
Funny thing happened today while I took out my MBP and tapped it to the charger. The battery indicator shows one dot not being light up while my MBP was fully charged while the computer was turned off by the way. So I was wondering if over time, like say a week or two that even though your MBP is turned off can it still discharge at a slow rate.
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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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Aug 7, 2006
I'm getting a 1.25Ghz 15" Al Powerbook assuming I can fix it. It's got one major problem - it won't charge the battery, or see that it's plugged in. This problem just happened suddenly, it wasn't a gradual thing at all, and there was no physical damage that caused it. The Powerbook still booted and worked fine off of a freshly charged battery, but the computer won't charge that battery anymore.
I think it's a broken DC-in board that needs to be replaced, but before I dump $50 - $75 on a new one, can anyone tell me if it might be something else, maybe something I could check for free?
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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 1, 2007
The iBook battery will not charge nor will the light on the charger show any color when plugged in. The battery time until full charge icon is stuck on "calculating."
1) The charger is fine since I checked it on another iBook. (Light comes on and changes appropriately.)
2) I have multiple batteries so any one individual battery is not the problem. Also it registers the proper charge capacity.
3) I've reset the PMU and it does not help.
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Jun 22, 2012
I am unable to charge my 4G iPod (plugged into wired Apple keyboard) under Bootcamp in Windows 7 (64-bit) running on my Mac Pro (4,1). As soon as I reboot into OS X, the iPod starts charging immediately. What do I have to do to get my iPod charging through my keyboard?
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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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Apr 28, 2012
I've been told that I should replace its battery since it's been damaged. I haven't had the time or the money yet to buy a new one, and right now, I really need to use it.
Info:
MacBook
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Feb 22, 2010
I picked up a black MacBook on eBay recently and it seems it came with a new battery. The battery is not an Apple one and oddly the exposed surface of it is more rubbery than the rest of the MacBook. I didn't expect much and my initial impression was that it lasted a pretty good while, but seemed to discharge while sleeping a little faster than expected.
Anyway, the problem has become that while it's plugged in the menubar battery info flashes (Not Charging) every once and awhile as if it loses its connection. At first this was infrequent and didn't seem to matter. Now it happens every 7 or 8 seconds and leads to the battery charging fantastically slow. It's at 72% and iStat says it needs another 23 hours to be fully charged (it said 10 hours about 15 minutes ago).
Any idea what's going on or how to fix it?
Battery Information:
Model Information:
Manufacturer:DP
Device name:ASMB013
Pack Lot Code:0001
PCB Lot Code:0021
Firmware Version:0010
Hardware Revision:001f
Cell Revision:7a3e
Charge Information:
Charge remaining (mAh):3741
Fully charged:No
Charging:Yes
Full charge capacity (mAh):5186
Health Information:
Cycle count:21
Condition:Normal
Battery Installed:Yes
Amperage (mA):123
Voltage (mV):12261
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