Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

FoX1112

macrumors newbie
Original poster
Mar 22, 2021
16
9
I have had the M1 air for less than a year, though I am a heavy user. I am concerned about the state of the battery. Is it degrading too fast? Thanks. My battery life is also noticeably lower, still ok, but not as good as when I bought it. Is there something I can do about it?
 

ignatius345

macrumors 604
Aug 20, 2015
7,215
12,023
According to the System Information app, my M1 Air is at 93% battery health after 181 cycles. Seems like it's going down at a slower rate than yours, but then again I don't know if the degradation rate is linear or what. Maybe it accelerates as you accumulate cycles.

Is your MacBook still under AppleCare? If so, looks like you'd be eligible for a free battery replacement if you choose to get one. If you don't have AppleCare, looks like it's $159, which is honestly not terrible.

Screenshot 2023-09-01 at 9.25.20 AM.png
 

Flav

macrumors newbie
Jan 19, 2023
28
26
I have had the M1 air for less than a year, though I am a heavy user. I am concerned about the state of the battery. Is it degrading too fast? Thanks. My battery life is also noticeably lower, still ok, but not as good as when I bought it. Is there something I can do about it?
I've used my M1 Air for more than 2 years now, with last year and a half or so with Al Delte limiting the charge to 75%.

I am currently at 85% health according to Apple system information and at 79% according to Coconut Battery. The degradation kind of slowed last six months as it gradually went down a percent or two.

In general I am not happy because I see that I get noticeably less battery life out of it but at the same time it works fine so I am still using it. Fun fact, I have a working 2009 MacBook Pro 15" with it's original battery which works fine and is at 79% health :)
 
  • Like
Reactions: BigMcGuire

BigMcGuire

Cancelled
Jan 10, 2012
9,832
14,029
According to Isidor's book https://batteryuniversity.com/buy-the-book - batteries will drop in health the fastest in the first few hundred cycles then level off as they age. That's why you see a lot of older devices with ~80% health despite sometimes thousands of cycles.

From my observations that health is a bit low, but if you have AppleCare+ like mentioned above, Apple will take care of it when it drops below 80%.

Do you keep your laptop plugged in a lot? Storing your laptop at high states of charge can hurt health. Using AlDente can help with that.
 

ignatius345

macrumors 604
Aug 20, 2015
7,215
12,023
I guess there are two schools of thought here. I just prefer to use my battery as I wish and replace it when it's time. It's a consumable part, and Apple makes it very easy to deal with.
 
  • Like
Reactions: BigMcGuire

ignatius345

macrumors 604
Aug 20, 2015
7,215
12,023
To maybe answer the OP's question, I opened up coconutBattery's tracking page (available from within the app) and found the stats for this model. Looks like this jibes with what @Flav wrote above -- the curve is steeper at first and then levels out.

Screenshot 2023-09-01 at 11.13.56 AM.png
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.