Average Macbook Battery Life

I'm thinking about buying a 13-inch 2.13 GHz Macbook with a 4gb RAM upgrade. I was told that the average battery life of a Macbook is 5 hours. Is this about right?

Every manufacturer estimates battery life under conditions that almost no one would actually fine usable. My older BlackBook (with a newish battery) gets 3 to 3.5 hours without my trying at all hard. By making sure that all my applications are already running, turning off BlueTooth and WiFi, and turning down the backlight to the bare minimum, and saving files infrequently I can get just over 4 hours. I've never gotten close to 5.

Similar Messages

Macbook battery life on yosemite

Hi,
I updated my macbook air to yosemite and battery life has reduced. I just use word and safari for my work. No special softwares. Can anyone tell me the solution to this?
Thanks

So here is an update: I've followed the article posted by OGELTHORPE (Thank you!). What I actually did is 1. Reset the SMC and 2. Reset the PRAM (MacBook Air SMC and PRAM reset).
What I've seen so far: Once I did the reset, I would guess that the system needed to re-calcualte again the battery charge. Initially after I disconnected from power, it started with a measurement from under 3:30h. After 45 minutes running on battery it is showing again 8:45h remaining @ 93% charge. What I noticed is that every time I put the laptop to sleep this repeats - starting with some low time measurement and slowly climbing. I think that this could be a bug in the software and the battery charge calculation method is somehow not working properly. I wonder after those resets if the OS needs to get into a couple of battery charge cycles and the battery is calibrated again?
I don't recall having this issue with the last year's release of Mavericks.
I hope someone from Apple sees this and address this with the next OS X update.

Can MacBook battery life be as longer as MacBookPro

Hello
I had watched the new add about MacBookPro' s battery life and thought if I could use my MacBook up to 8 hours and if I could charge my MacBook up to 1000 times, which is also extremely a big number for charging cycles, it would be really great for my education. During some long meetings or presentations (like Apple Keynotes) I need some charging equipment and sometimes the electrical sysytem of the meeting rooms don't let me to recharge my MacBooks battery. So my question is "Can a kind of powerfull battery, like MacBookPro's, seperately sold for also other Apple remote products?"

Nope not available for anything except the 17" MBP.
If you want to maximize your battery life turn off bluetooth, IR in the security prefs unless you are using a remote device, wifi, and turn down your brightness a bit. Also make sure you are calibrating your battery to keep it in shape every 2-3 months. by charging to full and letting it charge for two more hours, letting it drain all the way, and then letting it sit discharged for at least 5 hours. Last, charge it fully.

Terrible Macbook battery life

Good morning all,
I recently purchased a MacBook (a thing of beauty) but seem to be having problems calibrating the battery. I have tried many times and can only seem to get about 1:30 out of it. I thought the battery was faulty so took it back to the Apple Store.... they replaced the entire computer. But this one seems to be the same.
To confirm:
Let the battery run flat ('till the computer goes to sleep)
Charge fully (not using the computer during this part of the process)
Run for at least two hours while plugged in (have been using it at this time)
Then run on batteries untill it goes to sleep
Leave alone for a least 5 hours
Fully recharge
I have the computer set to "normal" for battery use.
Any thoughts?
Joe

Joe Henson wrote:
To confirm:
Let the battery run flat ('till the computer goes to sleep)
This step is not in the instructions nor is it needed with lithium ion batteries. Just let it charge fully for two hours. If the battery is not at 100% and not charging just let the MacBook run on battery until it drops below 93% and then let it charge.
Charge fully (not using the computer during this part of the process)
You can use the computer while doing this. It will not hurt anything.
Run for at least two hours while plugged in (have been using it at this time)
Then run on batteries untill it goes to sleep
Leave alone for a least 5 hours
Fully recharge
Once the charge cycle starts you can use the computer as long as it is plugged in. Do not unplug until it is fully charged or you will interrupt the charge cycle.
The life of the battery depends on all the things you have turned on and what you are doing. Watching movings and having bluetooth and airport running will affect battery life. Turn off anything your not using and see if that helps. One and a half hours does seem a tad short mine usually last at least two hours and that is pretty mach having everything running.
Look here and here for some good tips about battery care.

Incredible macbook battery life

After accidently removing the magsafe (glad this was invented) I had a incredible battery life of 61h and 57 min. This was at least shown to me for about half a minute, in which I have seemed to consume so much power, that only hardly 4h were left, afterwards. ; ) Have a look yourself!
I edited the photo with imagetricks, to cover Adium and to enlight the point I'm posting about.
Powerbook G4, 20" iMac G5 soon MacBook Mac OS X (10.4.6)

Yes, it does sometimes take a moment for it recalibrate itself. I've seen that happen on my Powerbook before, though it thought it had 9 hours left for a moment.

Macbook battery life, is there a problem If I keep it plugged almost all the time?

Hello.
New Mac user here, so I was wondering if there's a problem if I keep my MBP plugged all the time.
Most of the time I'm on my room using my MBP fully charged and I don't disconnect it.
Is there a problem with my batter life if I do that?
Or it's recommended to unplug and use it till the battery run off and then charge it again?
Because I work a lot on my MBP and that way in a simple day I could charge it and run uff the energy of the battery 2 to 3 times at day.
What's better for the life of my battery?
And if you could give me some advices to maintenance my battery and Macbook pro (also programs) I would appreciate it.
I own a Macbook Pro 13-inch, Mid 2012
2.9 GHz Intel Core i7
8 GB 1600 MHz DDR3
Intel HD Graphics 4000 1024 MB
With OS X 10.9
Thanks

Tamarizz wrote:
New Mac user here, so I was wondering if there's a problem if I keep my MBP plugged all the time.
No. I do that most of the time. Perhaps monthly I discharge it to the 40% level to keep the battery happy. Do not discharge the battery completely. If you are forced to use only battery power and you see the battery is low warning terminate your session or plug into AC if you can.
Here are Apple articles with official battery usage guidelines:
http://www.apple.com/support/macbookpro/batteries_power/
Ciao.

Poor MacBook Battery Life

Hi,
I've owned my 13" Retina display for about a month. The most usage I get out of a full charge is 3 hours (keyboard lights off, screen dimmed a bit). All I'm using it for is reading articles and writing text/emails. No Photoshop or other big problems.
Meanwhile my friend can run his from 9am to 4pm daily without recharging.
This is really disappointing. The first powerbook I purchased I had to replace because it kept freezing. Now this.
Is there a solution?
Cheers.

futureperfect,
you’re still in your 90-day gratis Apple telephone support period — make use of it. Call Apple, get their recommendations (even if it’s “your battery is defective, bring back your MacBook Pro for a replacement unit”), try them out, and report back in your reply what worked for you, so that others can benefit from your experience.

Battery life drained while using itunes

My macbook battery life is being drained while using itunes. I have checked the activity monitor and the CPU usage is up to 14-16 while on most macbooks, its at an average of 4 or 5. I've updated the software and even tried going back to the original software it came with. What's the best solution for this issue?

My macbook battery life is being drained while using itunes. I have checked the activity monitor and the CPU usage is up to 14-16 while on most macbooks, its at an average of 4 or 5. I've updated the software and even tried going back to the original software it came with. What's the best solution for this issue?

MBP 15" Retina Battery Life Problems

Hello all!
I recently got the highest end MBP 15" Retina and it runs AMAZINGLY fast, but the only problem I'm having with is the battery life.
For example, right now, at 100% charge, the predicted time is 4 hours and 35 minutes, but it's plummeting very quickly; I don't think I'll get more than 1 or 2 hours.
On the website, the average predicted battery life is almost 8 hours. I understand that the numbers on Apple's website may not be exact, but I feel like getting a quarter or even half of the advertised battery life suggests there is something wrong as well? o-o
I'm not doing anything intensive on my computer either; just simple web browsing and chatting on Skype.
I've searched the internet for solutions, and I've already tried resetting PRAM AND NVRAM settings, I've turned off Bluetooth, and checked off all of the Power Saver settings in Preferences.
My battery's condition is "Normal" since I recently purchased it.
I'm curious if anyone has a solution to this problem? (To give an idea of how fast the battery is draining, I started writing this post with 100% battery, and now it's at 98% several minutes later)
If anyone has any advice, it'd be greatly appreciated!
Thanks in advanced!

puzzledsean wrote:
I'm not doing anything intensive on my computer either; just simple web browsing and chatting on Skype.
Skype is one of the most resource hungry application that one may use. It will drain the battery very quickly. When using it, connect your MBP to the power adapter.
Read the Apple hype regarding battery run time. The operative term is 'UP TO' not will achieve 8 hours run time. In the 'real world' conditions, battery run time will be determined by the number and type of applications you are using. If you are just text editing, you may very well get 8 hours from from the battery, but certainly not with Skype games or video.
Ciao.

Battery life suddenly cut in half

just yesterday, during my first class, i noticed that i only had about 2 hours left on my battery-- this was just about 15 minutes after unplugging my fully charged macbook. the same thing happened today...i don't know what's going on, i used to get around 4 hours with it. i haven't changed any habits-- i dim the screen as much as possible, etc.
i'm calibrating the battery right now...will that work or is something else wrong?

Hi,
Macbook battery life arouse lot of feedback. My experience is after re-calibration the total capcity of battery losts at least 100mAh. But if just connect to internet via airport, still I can manage to use it with over 3hrs. But when I run photoshops or bigger size file, the time shown on menu bar dropped tremendously to 1:50hr somethg from 3:03hr. But this battery seems to last quite good at last few %. My experiences on powerbook G4 1G, with 1.25G DDR ram, when battery drops to 10% or 10 minutes, the Powerbook will go to sleep soon. But for Macbook, when the indicator shows 0:09 hr remained, if using for internet it can still last for more than 15minutes. I also asked Apple HK technician about the battery drop problem, they said this is just rough estimation, sometimes not accurate, and it is normal that battery sometimes can't charged back 100% full unless after recalibration. If ur cases after full charge, check if ur battery is 100% or below 90% uisng coconut, Apple said if under warranty the battery drop below 90% for full charge, u can replace the battery in Apple repair center. This is the case in HK , I am not sure the practise in ur country.
Nobu

Mid-2013 Macbook Air: question about the battery life

First of all, I'm sorry if these questions have been already asked, I've looked around and I've seen some answers, but none that fit my specific case.
I have had this computer since December (Macbook Air, 13'', Mid-2013), I've been using it for a month now. At the beginning, I used to use it until my battery was low (between 10 and 20%) and then charge it. Then I learnt that it's better to keep it plugged as much as possible (I have read this in other discussions and on the Apple page). The problem is that my battery is no longer a 100% of its capacity according to Cococnut Battery. It started with 99%, then back to 100%, then 98, 97... and now it varies from 97 to 98 (right now it says that my computer's current capacity is 6948 mAH). I don't know if this is normal, or if this is caused by the use I used to give to my macbook air at the beginning or by any other thing. I also have 19 loadcycles already. Besides, I have noticed that sometimes it jumps form 100% to 99% of battery pretty fast when I don't have it plugged, and I'm not sure if that happened before.
This is my first time dealing with a macbook and I don't know how these things are supposed to work, and I'm worried my battery might have any kind of problem and that's why itdoesn't have full capacity anymore, since I've been using it for only a month.
Also, sometimes it takes a little while to shut down. It usually takes 2 seconds, but sometimes it takes longer, maybe 20 seconds (first the screen turn white, then the loading icon appears and then it finally shuts down). Is this normal too for macbook airs?
Thanks for the help!

Those are only averages, for purposes of the battery 97 98 99 and 100 are the 'same thing'........theyre all estimates.
Normal on shut down, sometimes you can see a few seconds, sometimes 10, 15 seconds shut down.....depends on what and HOW much its shutting down before poweroff.   Normal.
ON BATTERY USE:
Keep it plugged in when near a socket so you keep the charging cycles down on your LiPo (lithium polymer) cells / battery, but not plugged in all the time. When not being used for several hours, turn it off.
http://www.apple.com/batteries/notebooks.html
"Apple does not recommend leaving your portable plugged in all the time."
General rule to remember of Lithium batteries is:
Never drain them LOW & dont always/often store them HIGH
While cycle count is commonly seen to be the “miles” on your Lithium Ion pack cell in your Macbook, which they are, this distinction is not a fine line at all, and it is a big misconception to “count charge cycles”
*A person who has, for example, 300 charge cycles on their battery and is recharging at say 50-60% remaining of a 100% charge has better battery usage and care than another person who has 300 charge cycles at say 15% remaining on a 100% charge.
DoD (depth of discharge) is far more important on the wear and tear on your Macbook battery than any mere charge cycle count. *There is no set “mile” or wear from a charge cycle in general OR in specific.    As such, contrary to popular conception, counting cycles is not conclusive whatsoever, rather the amount of deep DoD on an averaged scale of its use and charging conditions.
                          (as a very rough analogy would be 20,000 hard miles put on a car vs. 80,000 good miles being something similar)
*Contrary to some myths out there, there is protection circuitry in your Macbook and therefore you cannot overcharge it when plugged in and already fully charged
*However if you don’t plan on using it for a few hours, turn it OFF (plugged in or otherwise) ..*You don’t want your Macbook both always plugged in AND in sleep mode       (When portable devices are charging and in the on or sleep position, the current that is drawn through the device is called the parasitic load and will alter the dynamics of charge cycle. Battery manufacturers advise against parasitic loading because it induces mini-cycles.)
Keeping batteries connected to a charger ensures that periodic "top-ups" do very minor but continuous damage to individual cells, hence Apples recommendation above:   “Apple does not recommend leaving your portable plugged in all the time”, …this is because “Li-ion degrades fastest at high state-of-charge”.
                    This is also the same reason new Apple notebooks are packaged with 50% charges and not 100%.
LiPo (lithium polymer, same as in your Macbook) batteries do not need conditioning. However...
A lot of battery experts call the use of Lithium cells the "80% Rule" ...meaning use 80% of the charge or so, then recharge them for longer overall life.
Never let your Macbook go into shutdown and safe mode from loss of power, you can corrupt files that way, and the batteries do not like it.
The only quantified abuse seen to Lithium cells are instances when often the cells are repeatedly drained very low…. key word being "often"
Contrary to what some might say, Lithium batteries have an "ideal" break in period. First ten cycles or so, don't discharge down past 40% of the battery's capacity. Same way you don’t take a new car out and speed and rev the engine hard first 100 or so miles.
Proper treatment is still important. Just because LiPo batteries don’t need conditioning in general, does NOT mean they dont have an ideal use / recharge environment. Anything can be abused even if it doesn’t need conditioning.
From Apple on batteries:
http://support.apple.com/kb/HT1446
http://www.apple.com/batteries/
Storing your MacBook
If you are going to store your MacBook away for an extended period of time, keep it in a cool location (room temperature roughly 22° C or about 72° F). Make certain you have at least a 50% charge on the internal battery of your Macbook if you plan on storing it away for a few months; recharge your battery to 50% or so every six months roughly if being stored away. If you live in a humid environment, keep your Macbook stored in its zippered case to prevent infiltration of humidity on the internals of your Macbook which could lead to corrosion.
Considerations:
Your battery is subject to chemical aging even if not in use. A Lithium battery is aging as soon as its made, regardless.
In a perfect (although impractical) situation, your lithium battery is best idealized swinging back and forth between 20 and 85% SOC (state of charge) roughly.
Further still how you discharge the battery is far more important than how it is either charged or stored short term, and more important long term that cycle counts.
Ultimately counting charge cycles is of little importance. Abuse in discharging (foremost), charging, and storing the battery and how it affects battery chemistry is important and not the ‘odometer’ reading, or cycle counts on the battery.
Everything boils down to battery chemistry long term, and not an arbitrary number, or cycle count.
Keep your macbook plugged in when near a socket since in the near end of long-term life, this is beneficial to the battery.
Peace

Terrible Battery Life - New MacBook Pro

OK, 4 weeks into my New MacBook Pro. MacBook Pro 15", 8GB Ram, 512GB SSD (Lion O/S as shipped). I know there are other threads but here's the full summary from my perspective.
Prior machine was MacBook Pro 17", 4GB Ram and 256 GB Hard Drive (Upgraded to Lion O/S). This older machine and the battery is 30 months old. It's awesome but I really needed more RAM and better battery life. Stumped over over $4000 for it.
I migrated virtually everything (Using Migration Assistant). Machine came up perfectly, works like a charm.
Except, the new machine gets only about an hour more at best than the old machine. The old machine was getting about 2.5 hours to 3 hours. I could get some work done on a plane and watch a 2 hour movie.
However, the new machine will only get me about 3 1/2 hours. I only get 2 1/2 hours if I watch a movie.
This is terrible. I have taken to Genius store and they agree the battery is fine and something is wrong but didn't have a fix. They and I since have tried all sorts of things at boot time to clean up errors, disk stuff, aplplied updates and all that. Basically, everything suggested in every forum. Some of these things actually have an effect on the "Time available" on the status bar, showing 7-8 hours for a while leading me into a false sense of security that a "fix" has worked. However, then after an hour or so of of use or booting from sleep, it's really averaging just 3 1/2 hours in real life, and sometimes just 3 hours.
I had a spare bettery for my old MacBook so could get 6-7 hours on a long haul flight. Now, I am dead at 3 hours in.
SInce Genius bar have confirmed machine is fine, and others have reported similar findings when going to Lion *AND* I have exactly the same apps on both machines... what the heck can it be?
Does anyone want to guess? Does someone from Apple want to "see" my machine in use?
HELP HELP HELP. PLEASE. This $4k machine is leaving me with a very sour taste.

Suppose you elaborate on what you are doing with the MBP that makes the battery life terrible.

MacBook Pro Battery Life Draining After Updating to Yosemite

Hi,
I have a 2011 MacBook Pro. After updating to Yosemite a few months, I have experienced a severe loss of battery life. I was averaging around 6-8 hours on a charge, and that is now down to about 3. I have reset the PRAM, etc. and SOMETIMES that will work but not always. I typically have only one program running at a time, Chrome, but sometimes it's a mix between Chrome, Windows, iTunes. But my computer usage patterns have not changed since before/after updating. The only thing I can think of is that it is caused by Yosemite.
When I check my Activity Monitor, the apps with the highest CPU usage are WindowServer, kernal_task, and Chrome Helper. I have also disabled several plugins/features of Chrome to no avail.
Has anyone experienced similar issues or have any suggestions?
Thanks!

Is one of the 'etc.' a SMC reset?
http://support.apple.com/en-us/HT201295
Ciao.

Benchmarking Battery life of MacBook Pro 17"

Hey guys,
I tried to calculate the battery life of my 3/4 months old 17" book. This is how i conducted my test:
1) caliberated my battery, followed all 6 steps
2) turn off all the programs, including the ones in the task bar.
3) set the sleep timers to "never"
4) set brightness to full
5) turned off screen saver
6) turn on itunes and played on mp3 files.
7) note book speakers with volume set to 75% of the max
8) Didnt run anyother application at all during this time.
Using this setup , my fully charged calliberated battery lasted for 3 hours. Do you think it is good ? I would love to see your benchmarks and experimental setups.
Thanks
Mac OS X (10.4.7)

from appldefects
<<<Short battery life in a laptop is mainly cause by heat rather than charge / discharge patterns.
This information comes from award winning author, Isidor Buchmann of Cadex Electronics and is particularly true when it comes to Li-On batteries used in many of today’s current electronic appliances, including Apple’s MacBook, and MacBook Pro notebook computers.
Isidor is no discharge when it comes to batteries. Buchmann has a background in radio communications and has studied the behavior of rechargeable batteries in practical, everyday applications for two decades. He is also an award winning author of many articles and books on batteries.
If you own a MacBook Pro, or a MacBook you owe it to yourself to hit the books over at The Battery University. According to Buchmann’s school of thought, MacBook and MacBook Pro owners will be in for quite a shock when their batteries fail at an unprecedented rate. Buchmann’s research suggests that if a Li-On battery is stored at 60C for three months, it will lose 60% of its charge level. Startling, to say the least, considering the fact that my MacBook Pro operates at a firey 70-80C under average load. Excessive heat is one of the many problems currently plaguing Apple’s portable product line.
Read the full article at How to prolong lithium-based batteries (BU34)
A cliff notes version for the impatient includes:
Avoid frequent full discharges because this puts additional strain on the battery. Several partial discharges with frequent recharges are better for lithium-ion than one deep one. Recharging a partially charged lithium-ion does not cause harm because there is no memory. (In this respect, lithium-ion differs from nickel-based batteries.) Short battery life in a laptop is mainly cause by heat rather than charge / discharge patterns.
Consider removing the battery from a laptop (as to avoid operational heat) when running on fixed power. (Some laptop manufacturers are concerned about dust and moisture accumulating inside the battery casing.)>>>
hmmm

Battery life in MacBook Pro Retina

Hi guys,
I bought last week a MacBook Pro Retina, 13inch, late 2012, and my battery life is nowhere near the 'expected'. Right now I'm at 57% with 3:14 but I know some people have 9hours on a full charge... It just seems weird. I already did a PRAM and SMC reset and my battery life didn't change at all. I read that it could be related to Maverick (which I installed recently) - could that be the cause?
Also, I can't seem to understand what's the correct way to charge a MacBook. Should I charge it when it reaches 20% left (80% of use)? When should I stop charging - when it reaches 100% or less?
Thank you
(sorry if I do something wrong - I'm a newbie here)
(happy new year!)

Currently in some cases Mavericks is not reporting battery life as accurate in "time remaining" its being looked into.
As for the battery:
Keep it plugged in when near a socket so you keep the charging cycles down on your LiPo (lithium polymer) cells / battery, but not plugged in all the time. When not being used for several hours, turn it off.
And best "tip" is if its near a socket,...plug it in as long as you can (especially at home) since cycle count on the battery are the "miles that wear out the tires (battery)", however again, not plugged in all or most of the time.
http://www.apple.com/batteries/notebooks.html
"Apple does not recommend leaving your portable plugged in all the time."
General rule to remember of Lithium batteries is:
Never drain them LOW & dont always/often store them HIGH
While cycle count is commonly seen to be the “miles” on your Lithium Ion pack cell in your Macbook, which they are, this distinction is not a fine line at all, and it is a big misconception to “count charge cycles”
*A person who has, for example, 300 charge cycles on their battery and is recharging at say 50-60% remaining of a 100% charge has better battery usage and care than another person who has 300 charge cycles at say 15% remaining on a 100% charge.
DoD (depth of discharge) is far more important on the wear and tear on your Macbook battery than any mere charge cycle count. *There is no set “mile” or wear from a charge cycle in general OR in specific.    As such, contrary to popular conception, counting cycles is not conclusive whatsoever, rather the amount of deep DoD on an averaged scale of its use and charging conditions.
                          (as a very rough analogy would be 20,000 hard miles put on a car vs. 80,000 good miles being something similar)
*Contrary to some myths out there, there is protection circuitry in your Macbook and therefore you cannot overcharge it when plugged in and already fully charged
*However if you don’t plan on using it for a few hours, turn it OFF (plugged in or otherwise) ..*You don’t want your Macbook both always plugged in AND in sleep mode       (When portable devices are charging and in the on or sleep position, the current that is drawn through the device is called the parasitic load and will alter the dynamics of charge cycle. Battery manufacturers advise against parasitic loading because it induces mini-cycles.)
Keeping batteries connected to a charger ensures that periodic "top-ups" do very minor but continuous damage to individual cells, hence Apples recommendation above:   “Apple does not recommend leaving your portable plugged in all the time”, …this is because “Li-ion degrades fastest at high state-of-charge”.
                    This is also the same reason new Apple notebooks are packaged with 50% charges and not 100%.
LiPo (lithium polymer, same as in your Macbook) batteries do not need conditioning. However...
A lot of battery experts call the use of Lithium cells the "80% Rule" ...meaning use 80% of the charge or so, then recharge them for longer overall life.
Never let your Macbook go into shutdown and safe mode from loss of power, you can corrupt files that way, and the batteries do not like it.
The only quantified abuse seen to Lithium cells are instances when often the cells are repeatedly drained very low…. key word being "often"
Contrary to what some might say, Lithium batteries have an "ideal" break in period. First ten cycles or so, don't discharge down past 40% of the battery's capacity. Same way you don’t take a new car out and speed and rev the engine hard first 100 or so miles.
Proper treatment is still important. Just because LiPo batteries don’t need conditioning in general, does NOT mean they dont have an ideal use / recharge environment. Anything can be abused even if it doesn’t need conditioning.
From Apple on batteries:
http://support.apple.com/kb/HT1446
http://www.apple.com/batteries/
Storing your MacBook
If you are going to store your MacBook away for an extended period of time, keep it in a cool location (room temperature roughly 22° C or about 72° F). Make certain you have at least a 50% charge on the internal battery of your Macbook if you plan on storing it away for a few months; recharge your battery to 50% or so every six months roughly if being stored away. If you live in a humid environment, keep your Macbook stored in its zippered case to prevent infiltration of humidity on the internals of your Macbook which could lead to corrosion.
Considerations:
Your battery is subject to chemical aging even if not in use. A Lithium battery is aging as soon as its made, regardless.
In a perfect (although impractical) situation, your lithium battery is best idealized swinging back and forth between 20 and 85% SOC (state of charge) roughly.
Further still how you discharge the battery is far more important than how it is either charged or stored short term, and more important long term that cycle counts.
Ultimately counting charge cycles is of little importance. Abuse in discharging (foremost), charging, and storing the battery and how it affects battery chemistry is important and not the ‘odometer’ reading, or cycle counts on the battery.
Everything boils down to battery chemistry long term, and not an arbitrary number, or cycle count.
Keep your macbook plugged in when near a socket since in the near end of long-term life, this is beneficial to the battery.
Peace

Average Macbook Battery Life

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