Leaving macbook plugged in at 100%

does this have any effect on how long the charge will last
i mean... if the battery is in at 100% and i continue to keep it plugged in... is this bad for the battery in anyway?

why don't you just read the articles that people post?
"keep the battery juices flowing".
Charge, drain, charge, drain, etc.
Use it like a laptop, without the cord. If you don't like that, get an iMac.
Take it to the coffee break with you, listen wirelessly with AirTunes, surf in the garden... in the toilet.. whatever! The battery lasts 4-5 hours so that should not be a problem.
(I can manage almost a day without recharging, unless I do video or photo stuff)
The Calibration once a month is something that is a "minimum" - otherwise it will die really fast. I've been working with Notebooks for a long time and can only confirm that.
As for Lithium-Ion batteries, they die after some years no matter how you used them. They just die. So don't bother trying to protect your precious battery, it's a part that is designed to wear with time. And don't try to use it without a battery, that will only make it worse
I don't think you should listen to "some guy's" theories about the ultimate battery life.. just do what the engineers of Apple say, I think they might be the one that know best. :P
kind regards
andreas
P.S.: And don't listen to the so called techies in the Apple Store in Amsterdam, they told me it's good to operate the MacBook without a battery to prolong its life. They did not tell me that the MacBook then throttles down to 1 GHz to protect the CPU. Idiots
MacBook 13 Mac OS X (10.4.7) uh.. it's white

Similar Messages

Is it better to leave my macbook plugged it.... when.... read more!

Hi guys,
do you think its better that i just leave my macbook plugged in all the time *if i can* ... or should I just use the battery whenever I feel like it? I know that your supposed to do at least one full drain with your computer at least once a month... but If i'm going from room to room and just feel like not dragging around an adapter, is it bad for the battery? or is it good becasue I'm using the battery more and keeping the parts moving and warmed up rather than just never really using it?
Like right now my battery status is "not charging" even though its not plugged in!
the only reason I like to keep it plugged in a lot is because I record music a lot, and can't really do that on a low battery power (if the macbook shuts off I could lose data)
or is all of this really that big a deal?

torsenstarrow wrote:
Hey lyssa, that does help a bit. What about how my battery drains to under 95 % even when it's plugged in... and then it charges back to 100% in like 20 minutes... is that bad for the battery, because it happens when its plugged in (it slowly drains to below 95%... will that add battery cycles onto my laptop?
That's inevitable and not particularly bad. What would be bad would be that it went down to 99% and tried to top off the charge to 100%. That would mean more attempts to charge up to 100%. It's not that you don't want it to charge up to 100%, but it's going to degrade slightly every time the battery capacity gets to 100%. Near 100% is where it generates a lot more heat and tends to degrade battery capacity the most. Taking it down below a certain capacity also seems to degrade the battery. However - if you want to actually use the battery, these are normal things and the battery is considered a replaceable part.
I won't bore you with the details, but hybrid car batteries are designed to stay between 40-75% of theoretical capacity. By avoiding the extremes of charge and discharge, they can go through hundreds of thousands of these partial charge-discharge cycles while a standard use battery might go through maybe under 1000. The overall amount of energy cycling through a hybrid car battery would be maybe 30-50 times more than a standard use battery. Of course MacBook charging system isn't designed for that kind of use.
Charging a lithium rechargeable battery is an exercise in careful management of heat generation and battery life. Some of the earlier lithium rechargeable charging systems weren't very good and didn't slow down the charge as it approached 100%. You'd get overheating batteries as well as a few that caught on fire (the Sony factory fire in the 90's took out most of the world's Li-ion battery production at the time). Fortunately lithium battery charging technology has improved to the point where fires are extremely rare.

Should I leave my macbook plugged in when I'm not using it?

Should I leave my macbook charging cable plugged in when I'm not using it?

It won't hurt anything (i.e., it won't overcharge). It isn't a good idea to leave it plugged in 100% of the time. One common recommendation is to use the battery at least one cycle per month without ever deeply discharging it. Ways to do that would be to use it on battery power until it is discharged to 50% twice during a month or to 80% 5 times during a month or some other combination that adds up to roughly 100% usage once per month at a minimum. Another way of stating that is that you should use the battery sometimes.

Leaving Macbook Air plugged into ac adaptor?

When using the Air at home, is it ok to always leave the computer plugged into the AC adaptor, whether in sleep mode or in shut down mode? The magsafe plug on the computer stays green because the battery is charged. If I unplug the ac adaptor, even for a day without using the computer, the plug is first amber as some charging takes place.
What is the best way to use the computer at home to preserve battery operation over the long term?
thanks

Some other users already hit on the main points...
One thing worth mentioning, the purpose of the MacBook Air was to be super portable and I'd imagine for the typical user who purchases the machine they're anticipating being very mobile with it. I know on mine, I've already crossed the 100 charge cycle threshold and the machine is only about 3 months old. I use it a lot, both plugged in at night and unplugged during the day.
No matter how you use your battery, charge the machine, or leave it plugged in, ultimately the battery's longevity will be depleted. There are ways to prolong it, but it's impossible to prevent it. My advice to you, is to use the machine how you see fit.
Regarding charging at night, there's no evidence to support that leaving the machines plugged in overnight (on, off, sleep or otherwise) is problematic. I personally unplug mine at night, unless it requires charging. But again, that's a personal preference.

Help I have a Macbook 2006 model and I like to play videogames on it, well when I leave it plugged in it gets the best performance, when its not plugged in its decent, so will it hurt my battery if I leave it plugged in at all times?

Help I have a Macbook 2006 model and I like to play videogames on it, well when I leave it plugged in it gets the best performance, when its not plugged in its decent, so will it hurt my battery if I leave it plugged in at all times?

No, it will hurt your battery, but it is not recommended by Apple. Additionally, since you have a model with a removable battery, you should calibrate the battery once a month if you leave it plugged in at all times.
Apple Portables: Calibrating your computer's battery for best ...
www.apple.com/batteries

Does leaving macbook air on all the time (while plugged in) to download torrents degrade battery life?

Does leaving macbook air on all the time (while plugged in) to download torrents degrade battery life?

You have a lot of things going on here...you are keeping the Air plugged in all the time, you should run on the battery periodically to give it some exercise, you are keeping it on all the time which may be keeping it under constant or near constant load, and you are doing all of that to download pirated content, for which you will get no help on here.

Leaving MacBook Pro Plugged In

The majority of the time I use my MacBook Pro, it is near an outlet (about 50% time on my desk at work, and 50% on couch at home). I want to make my battery last as long as possible, but I do not know if that will be accomplished by leaving it plugged in whenever I can, or by letting it run off the battery whenever I can. I do run it all the way down at least once a month (more like once a week), per apple's advice. Does anyone know the best solution? Thank you.

There is nothing wrong with using the computer on AC power or on battery. If the battery is charged above 95 percent, the charging circuitry is shut off to prevent constant battery charging. If the charge level drops below 95 percent then the battery will recharge.
You do not need to run the battery down purposefully more than once every couple of months. This is only for the purpose of maintaining calibration of the battery circuitry that measures the amount of charge remaining. If the battery is not used much or is rarely run down then the measurement circuitry can be off leading to incorrect readings of remaining battery life.
If you frequently use the computer on battery such that the battery is being substantially depleted then there is no need for the periodic calibration ritual suggested in the Apple documentation.
Lithium-Polymer batteries have an average life of around 500 full discharge/recharge cycles. If you put your laptop in storage for an extended period of time you should discharge the battery to about a 30-40 percent charge level. That's the recommended storage level.

Leaving the Macbook plugged in w/battery out. Is it safe?

I typically use my macbook on my external hdtv so i keep it plugged up with the battery removed. Is this safe to do or should i always unplug it when i'm not useing it.
it just a hassle to plug it up everytime i want to use it. And i took the battery out because i'm not using it in the traditional method.
Should i be concerned if i leave it plugged up? Will this do any harm?
thanks
~chris

cpage76 wrote:
I typically use my macbook on my external hdtv so i keep it plugged up with the battery removed. Is this safe to do or should i always unplug it when i'm not useing it ... And i took the battery out because i'm not using it in the traditional method.
Safe? Well, it won't harm the computer, but if you have important files on the computer, you're putting them at risk. If the power is lost - if there's a power outage, brownout, or you accidentally pull the power cord out, you're shutting the computer down in a very "harsh" manner - essentially crashing it - so your hard drive would undergo undue stress and wouldn't get the safe shutdown it requires to help safeguard your files.
I highly recommend you keep the battery in. If you're permanently connecting it to the mains - which is fine - the battery isn't going to run down, so you're not wearing it out by having it connected.
Matt

Leaving macbook pro's charger plugged in over night

I have a retina display macbook pro and I leave the charger plugged in overnight and my macbook is closed. When I wake up, I felt that my charger is a bit warm, not cool, and I felt that the back of my macbook is a tiny bit warm too. I'm assuming that this means that the battery is still running... But i've read that its safe to leave the charger plugged in as it is just using the AC power. Shouldn't my macbook not be running while its closed?

When closed the MBP should be in sleep mode, but that doesn't mean completely shutdown. There are services that may run from sleep mode, service parts of the OS that don't need operator intervention.
When plugged in, the MBP charges to full battery capacity, and then the charging circuitry shuts down the charging until the battery charge trickles down to 93-95% charge level. At that point the circuit starts up again and tops off the battery, and continues to cycle through that procedure. So, epending on the battery charge level when you went to sleep mode, the charger may have started up and felt warm to the touch.
Leaving it plugged in is not harmful, but it is good to take an MBP off the charger occassionally,. monthly, and run the battery down about half way then plug in again...batteries do well with a little exercise now and then.

Is it better to leave my Macbook plugged in most of the time or not?

I've read different answers on the internet. Some people say that keeping your macbook plugged in is like not using the battery at all. Others say that keeping it plugged in most of the time is bad for the battery, for various reasons, either it makes the battery too hot or the constant charging and discharging during use is somehow detrimental. Everybody agrees that you should use it purely on battery at least once in a while, and many say that one should do a full discharge and charge once a month or so, to "exercise" the battery.
My question can be restated as: What is the optimal charging schedule for battery life, assuming that I have constant access to an electric outlet?

Do not let the MacBook or other battery powered Apple products run their battery flat.
To do so will damage the longer-term life and deep-cycle charge capabilities of them...
There is information about general battery and product health in the Apple support articles.
•Mac notebooks: All about batteries - Apple Support
•Apple Portables: Troubleshooting MagSafe adapters - Apple Support
•Find the right power adapter and cord for your Mac notebook - Apple Support
General:
http://www.apple.com/batteries/maximizing-performance/
You can check the System information section for battery and charging status, also note
the charge cycles and life or health of the battery there.
Good luck & happy computing!

Does using a MacBook plugged in ruin it's battery?

I own the 2013 13’’ Retina MacBook Pro. I want to ask 2 questions:
1-When the light on the charger is green, does the laptop still run on it’s internal battery or does it use the power from the charger?
2-Is it good for the health of the battery to use the computer in desktop conditions, always plugged in or does this ruin the battery overtime?

Leaving it plugged in will not ruin the battery, though it is good to unplug periodically and exercise the battery.
The charging circuit has over-charge protection, when you reach 100% the circuit switches to using line power for the MacBook Pro (what is happening when you see the green LED). When the charge drops to 93-95% the circuit starts charging again to top up the battery (the LED is amber then).
Discharging the battery to the point of shutdown is not good for the battery and does nothing in the way of calibrating the battery. Lithium-Ion batteries do not have a memory and cannot be calibrated, no matter what you may hear to the contrary. The only calibration that can be done is to the charge reporting circuit.
Discharging the battery to 50% and recharging will give 3 to 4 times longer battery life than full battery discharge to shutdown, so use the battery half way and recharge to get a battery that will be healthy longer.

Is Leaving MacBook Pro Turned On 24 Hours Bad?

Hello. I'm just wondering whether it is okay to leave my MacBook Pro turned on all day.
I often forget to turn off my laptop and I'm a bit worried whether not tunrining it off can
bring bad results.

Lion 2012 wrote:
Hello. I'm just wondering whether it is okay to leave my MacBook Pro turned on all day.
I often forget to turn off my laptop and I'm a bit worried whether not tunrining it off can
bring bad results.
Leaving it plugged in for a 24hr period will not harm it at all. I've had mine plugged in for days at a time, and even running at near 100% cpu useage for up to 96hrs straight for some analyses.
You should, however, try to unplug it and use the battery a bit at least every few days or once a week or so - just a partial discharge and charge at least every few days or min. of once a week is a good idea to make the battery last as long as possible.

Leaving Macbook Pro on all the time (as a desktop)

Hey guys, I have a 2010 Macbook Pro 17" and I'm thinking about transitioning it to a more sedentary lifestyle and turning it into my desktop. I currently use a PC as my home desktop, but it's old, slowing down, and uses Windows.
I have a few questions as I consider this move.
1) Will I need to keep the screen open on the laptop all the time? I think that MBPs dissipate their heat through the front/keyboard, so if I do find a workaround to keep it closed all the time, will my laptop overheat?
2) If I leave my MBP on all the time and plugged into an outlet constantly, will that drain my battery? I like keeping my main desktop on all the time as I do a lot of downloading, use it as a media server, and also like to access my desktop remotely. For the rare instance I want to unplug the MBP from the desktop setup, will I have any battery left to use?
The reason why I ask is because I'm thinking about two main options. The new iMacs are rumored to be coming out by the end of this month and I might just get that to replace my PC. However, I am thinking about holding off for the next generation of Macbook Airs (whenever that is) and just purchasing that, while turning my current MBP into a functional desktop. What is the downside of the using a MBP as a desktop instead of an iMac?
Please let me know what you guys think and recommend, and if anyone else uses this setup, please let me know how it is! Thanks!

1. Yes, it's possible to close the lid and keep the computer going - there are several threads on this if you search.
Although the MBP vents out the back when the lid is closed, heat does dissipate through through the top (meaning around the keyboard/speakers/trackpad/etc) also. Feel with your the top of your hands the aluminum when you computer is working hard and you will feel the heat - closing the lid will limit this heat escaping to a degree. So while it's likely fine to run the MBP with the lid closed, if it were me I would raise the lid up a few inches when the computer is using high CPU or the fans are working hard. (By the way, if you've been to an apple store, you will see that their laptops are fitted with little plastic bumpers so that when the lid is closed it doesn't close all the way - it could be to prevent sleeping, but instead of modding all their computers they could have just turned off sleep on lid close.)
2. As previously stated, it is good to power cycle your battery every month or so to keep it healthy. This is the nature of Li-ion batteries. Just unplug it and let it "die" once and a while. Leaving it plugged in most of the time won't destroy your battery.
Regarding iMac : It may have a better screen than whatever you currently have - they are stunning. Additionally, the current iMacs are more powerful than your 2010 MBP. But if you do decide to go that direction, I would agree that it may be best to wait till the iMacs come out with the improved Sandy Bridge i7's. If you don't need much horsepower, any of the 3 options will work - why not try out your 2010 MBP as your desktop for a bit and see how you like it, in the meantime you can see when the iMac comes out and compare that to your MBP desktop replacement/new MB Air idea.

Leaving it plugged in.

So i got my new 13" MB last friday (4 days ago) and i've been doing my research on how to prolong the life of the battery. After 4 days, i am sitting on 8 cycles, so as you can see i am a relatively heavy user. For the last 4 days, i have been unplugging it when it is full and then charging it when it almost dies. Hoewever, at this rate, i will reach my 300 cycles in half a year.
My daily laptop usage would involve using it for a few hours at uni every day and then using it at night at home. After doing some research last night, i have decided that i will keep it plugged in while at home but use it on battery when i'm out and about. (Is this the right thing to do?)
My question is, when i'm at home and i put my macbook to sleep, should i unplug the mains? (Assuming that it is fully charged)
What about when i shut down before i go to bed - do i want to leave it plugged in over night?
I have also been making sure that the magsafe is plugged in fore connecting or disconnecting the mains. Is this neccesary?
Your input is greatly appreciated

It's perfectly fine to leave the computer connected to the AC adapter.
About Batteries in Modern Apple Laptops
Apple - Batteries - Notebooks
Extending the Life of Your Laptop Battery
Apple - Batteries
Determining Battery Cycle Count
Calibrating your computer's battery for best performance
Battery University

HT4528 Is it better to leave iPhone plugged in overnight or unplug and turn off?

Is it better to leave iPhone plugged in all or turn off after 100%?

Neither will have harmful effects on the battery. I would leave it overnight so it is still 100% charged when you wake up.

Leaving macbook plugged in at 100%

Similar Messages

Maybe you are looking for