2013 rMBP - battery issues...

[daveedjackson]

Hey there,

Wonder if anyone else is having similar issues.

I have an early 2013 rMBP and recently the battery seems to be behaving strangely.

It sometimes dies out of the blue with 46% charge. I can plug it in, and then unplug it and it does exactly the same. I did a pram reset and things have been fine, dying at the typical 2% or 1% but then today, it randomly died at 17%. Plugged it in, and when it resumed, it was at 16%. Not sure what to do with it's out of warranty - but pretty sure a battery should not do this.

Any advice would be appreciated.

Cheers
D

 

[Anand953]

Hey there,

Wonder if anyone else is having similar issues.

I have an early 2013 rMBP and recently the battery seems to be behaving strangely.

It sometimes dies out of the blue with 46% charge. I can plug it in, and then unplug it and it does exactly the same. I did a pram reset and things have been fine, dying at the typical 2% or 1% but then today, it randomly died at 17%. Plugged it in, and when it resumed, it was at 16%. Not sure what to do with it's out of warranty - but pretty sure a battery should not do this.

Any advice would be appreciated.

Cheers
D

Sounds strange.. Better go to Apple support centre to get it fixed.. Do you have a warranty?

 

[GGJstudios]

It sometimes dies out of the blue with 46% charge. I can plug it in, and then unplug it and it does exactly the same. I did a pram reset and things have been fine, dying at the typical 2% or 1% but then today, it randomly died at 17%. Plugged it in, and when it resumed, it was at 16%. Not sure what to do with it's out of warranty - but pretty sure a battery should not do this.

PRAM/NVRAM has nothing to do with battery/power/charging issues, so resetting it will not help. For power or charging issues, try resetting the SMC.

The link below should answer most, if not all, of your battery/charging questions, including tips for maximizing battery performance. If you haven’t already done so, I highly recommend you take the time to read it.

Apple Notebook Battery FAQ​

 

[daveedjackson]

PRAM/NVRAM has nothing to do with battery/power/charging issues, so resetting it will not help. For power or charging issues, try resetting the SMC.

The link below should answer most, if not all, of your battery/charging questions, including tips for maximizing battery performance. If you haven’t already done so, I highly recommend you take the time to read it.

Apple Notebook Battery FAQ​

I appreciate that this wouldn't usually help - however in this case it did - the next charge after the pram reset worked fine. Anyway - i will try the SMC reset.

The link doesn't answer anything specifically about this issue other than telling me the battery would not be covered under the warranty.

Cheers
David

 

[GGJstudios]

I appreciate that this wouldn't usually help - however in this case it did - the next charge after the pram reset worked fine. Anyway - i will try the SMC reset.

It was likely the reboot that affected the issue, as there is nothing in NVRAM associated with battery, power or charging. Information stored in NVRAM can include:

• Speaker volume
• Screen resolution
• Startup disk selection
• Recent kernel panic information, if any

How to Reset NVRAM on your Mac

Power related settings can be controlled by the System Management Controller (SMC) on your Mac. If you are experiencing issues with powering on your computer, sleep, wake, charging your Mac notebook battery, or other power-related symptoms, you might need to reset the SMC instead.

The link doesn't answer anything specifically about this issue other than telling me the battery would not be covered under the warranty.

The link didn't say batteries are not covered. They are covered if they are determined to be defective.

 

[daveedjackson]

It was likely the reboot that affected the issue, as there is nothing in NVRAM associated with battery, power or charging. Information stored in NVRAM can include:

• Speaker volume
• Screen resolution
• Startup disk selection
• Recent kernel panic information, if any

How to Reset NVRAM on your Mac


The link didn't say batteries are not covered. They are covered if they are determined to be defective.

Apologies, yes it told me how to reset the SMC. Not sure how it would be determined that the battery is defective, especially since the laptop is almost 2 years old - and apple usually put everything down to wear and tear. Anyway if it persists i will take it to the genius bar - it's just an odd glitch.

Thanks for your help.

D

 

[T5BRICK]

Not sure how it would be determined that the battery is defective, especially since the laptop is almost 2 years old - and apple usually put everything down to wear and tear.

You could use Coconut Battery to check the health of your battery.

http://www.coconut-flavour.com/coconutbattery/