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Discussion in 'MacBook Pro' started by Flopstar, Sep 29, 2018.
This is embarrassingly bad
In 205 cycles you will get warnings to replace battery-under 80%. Not good.
I wonder if Apple could help improve this by adding a battery charge threshold setting? Some manufacturers include settings where you can indicate that the laptop doesn't begin to charge until it reaches X% (such as 60%) and will stop charging at a max of X% (such as 98%). Supposedly this helps reduce the amount of charging cycles, but I am not sure how significant the impact is.
With Apple batteries being glued in and not easily replaceable, maybe any reduction in cycles is a big positive.
Doesn't necessarily follow.. degredation is not necessarily linear, though this performance does seem quite poor.
Battery wear is not linear. My 2012 got to around that health pretty quickly and never moved from there for about 5 years. Never had a problem with battery life. Try not to think about it.
My 2012 13" non retina MBP was purchased new at BestBuy in July of 2015. It has 28 cycles and it is at 90.7 capacity. It's been that way since about 15 cycles. I use it on battery about once a month just to use the battery.
Update: It goes back up to 95% and down to 94% sometimes too. As long as it doesn't start falling in a linear way again, I think it will be fine
Battery degradation is NOT a linear process.
People look at these numbers way too much. I'd say relax and ignore the battery condition unless you're experiencing problems or the OS alerts you that the condition has degraded seriously.
It is not everything black and white with capacity measuring methods, and false/off readings are possible.
I'd say do not panic.
i've got the 13 macbook pro 2015 50 cycle and captivity is 90%. I don't see anything wrong and still last for 8-9hours
battery charge state is an estimate made by watching current flows or voltage. This is effected by load, temps, and other environment conditions. There is no way to know exactly how much charge a battery has and how long that will last. Better to not get hung up on 3-4% differences.
Batteries degrade over time, regardless of cycles.
Every now and then we'll see a thread with someone's 2015 Mac has 30 cycles because it was always on the charger and the battery has degraded to 90%. No ****.
If you store a battery, it will degrade over time.
If you use a battery, it will degrade over time.
If you only use your Mac on a charger, it's even worse, because you're "storing" a battery at full capacity in 40-50C heat.
If you use it every now and then, it will degrade but a bit less.
Batteries are consumables.
What did it start as - some start at less than or even higher than 100% - there is usually an acceptable tolerance.
What app or whatever did you use to get that info on your battery? Thanks.
That would be Coconut Battery, it's great. You can get your device's battery stats AND the battery stats of any iOS devices that are plugged into that mac.
Why not give the full picture? Above the Design Capacity which is static, is the Full Charge Capacity bar as well as current charge - which is important when measuring.
What's going on with MBP batteries? Mine died suddenly today with only 283 cycles!
I've got 1627 cycles on a Non Retina 2012 Pro and 94 percent health :O
Nice! You have that thing on a laptop hamster wheel? That’s a well used and well aged battery
My > 6 year old rmbp got 192 cycles and 90% capacity. It's plugged in 95% of the time.
Mine was about that too but it has slowed down a lot. I've loss less than a percent in the past year.
Honestly mine looked like it was going to be quite low if it followed trends much like OP's did. After a year I was around 95% or so. Just over 5 years now and my battery is at 86% capacity and with 675 charge cycles. It's not a linear process and you'll probably be fine.