Drastic change in battery capacity in a single day?

[sk2327]

I have used my MBPr (MacBookPro11,1) since 15 months without a glitch, was getting decent battery life,

updated my OSX to 10.11.2 BETA 4 along with the newer recovery update TWO DAYS ago and since then my mac started to shut down abruptly and randomly at 30% charge, 20% charge. Pressing power key does not help, plugging in boots the system up.



Now my system report shows:



Designed Capacity : 6630

Current Capacity: 2373



Charge Remaining (mAh): 1194

Fully Charged: No

Charging: No

Full Charge Capacity (mAh): 2373

Health Information:

Cycle Count: 424

Condition: Normal

Battery Installed: Yes

Amperage (mA): -549

Voltage (mV): 1174



As you can see i have only got 424 cycles on my battery, i do not understand the sudden problem it has got.







Battery life previously: 7hrs on average

Battery life now : 3 hrs



I have tried jumping back to OSX 10.11.1, but no gain, i will be trying to wipe the drive and reinstall OSX 10.11.1 along with the recovery.



Any help and suggestions in this direction will be highly appreciated.

Charge Inform


MacBook Pro with Retina display, OS X El Capitan (10.11.1)

 

[keysofanxiety]

If you've still got AppleCare, they now warrant batteries beyond 1 year, so go back to Apple and they'll replace the battery.

Definitely hardware.

EDIT: what am I saying, let's go through the obvious bits first. SMC reset/PRAM reset -- any better?

 

[sk2327]

No nothing helpful, and unfortunately i did not get the apple care.
Cant it be related to SMC update or something, cause it only happened just after OSX update.

 

[MagicBoy]

Most likely a cell has gone faulty and it's just a co-incidence.

Go talk to Apple, ask them politely if they can help you.

 

[T5BRICK]

my mac started to shut down abruptly and randomly at 30% charge, 20% charge. Pressing power key does not help, plugging in boots the system up.

That is a pretty common symptom of a bad battery. The fact that it failed right after an OS update is just a coincidence.

 

[sk2327]

Thanks for all your help, appreciate it.
Was a bit unlucky this time.