so yesterday, my battery health read 100% (using my istat pro and coconut battery). today, after recalibrating said battery, the health reads 42% 😱
i'm kinda not happy. any ideas?
i'm kinda not happy. any ideas?
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Battery Health 100% to 42% - WTF?!
- Thread starter Jvhowube
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taylorwilsdon
macrumors 68000
I recalibrate every 1-2 months. i'm certain my battery care habits are better than most. that's just ridiculous though - to jump from 100 to 42.
taylorwilsdon
macrumors 68000
Calibrating doesn't do anything good for the battery, it just makes your count more accurate. Battery care habits include limiting the number of cycles running through the battery, not always using it while plugged in, draining it through natural usage etc.
alright well i do all of these things.
last night, my battery lasted through a 2.5 hour movie (i watched it just running off the battery).
today, when it's fully charged, it says it has no more than 1 hour of battery life. what's the deal?!
taylorwilsdon
macrumors 68000
If thats the case then the battery may be defective. If you're still within your complimentary 1 year or if you have Applecare, just give Apple a call and they should replace it. Emphasize that it has lost capacity to an unsuitable level in an unreasonable period of time.
Did you install that battery update a while back? And if so, had you calibrated since then? If not, that's probably the reason. A lot of peoples health went to 100% after that update but it wasn't real, after calibration the battery went back to reading its old health (or close to it). A jump that big is pretty strange though, I'd imagine if your battery was that low on health that it wouldn't jump to 100% after the update. Just a guess.
How old is your computer by the way?
How old is your computer by the way?