over the top battery reporting

[Tech198]

Should i try SMC reset ?

Battery icon is showing 50% ish, yet battery display is somewhat different

What if this keep happening ?

This is on a new 2015 based Mac only bought few days ago.

 

[Taz Mangus]

Should i try SMC reset ?

Battery icon is showing 50% ish, yet battery display is somewhat different

What if this keep happening ?

This is on a new 2015 based Mac only bought few days ago.

Yes, I would try resetting SMC first and keep an eye on what is reported after that.

 

[Tech198]

Thanks, but this is not helping...

Even with Firefox running, i now see around 14 hours...

Anything else?

This is on a clean install of Yosemite on a blank hard drive.... 10.10.3 was installed via internet recovery.

I have removed iStat Pro as thought could 'muck up' the reporting issue by the OS... and done anther SMC reset..

This time, showing 15 hours... I may just leave it for a few days and see unless there is anything else i could try.

 

[Taz Mangus]

Thanks, but this is not helping...

Even with Firefox running, i now see around 14 hours...

Anything else?

This is on a clean install of Yosemite on a blank hard drive.... 10.10.3 was installed via internet recovery.

I have removed iStat Pro as thought could 'muck up' the reporting issue by the OS... and done anther SMC reset..

This time, showing 15 hours... I may just leave it for a few days and see unless there is anything else i could try.

It may be a calibration issue: https://support.apple.com/kb/PH14087?locale=en_US

 

[Tech198]

Still doesn't see to be accurate...

In all cases i still get reports of above 10 hours...

 

[treichert]

It may be a calibration issue: https://support.apple.com/kb/PH14087?locale=en_US

Only removable batteries can be calibrated.

 

[Tech198]

Only removable batteries can be calibrated.

umm... i never knew that one...

Update: after disconnecting AC tonight, now battery it showing 20:00 again... Heath status is normal in System profiler, and Apple ran though it all.... AHC detects no issues either.

While i admit this would have been like really good running time on a Mac, i replacement is called.... I'll be getting a swap ASAP. However, i also believe, its not a battery issue per say, its only the reporting issue (although i guess its part of the battery), so Apple would treat it as "one" but nevertheless.

 

[Taz Mangus]

Only removable batteries can be calibrated.

There use to be a kb article (ht1490 from 2010; which has been removed) by Apple that discussed calibrating the MacBook batteries that were not removal. Apple has to remove it now. This is basically what was in that km article which discussed calibrating non-removal batteries: http://macs.about.com/od/usingyourmac/qt/battery-calibration.htm. This is how I calibrated my 2009 MacBook Pro battery.

 

[treichert]

Well this is the procedure Apple describes for removable batteries...

It's just not necessary and does nothing anymore.