Built-in bluetooth indicator shows Battery Level incorrectly

Question

Level 1

8 points

Built-in bluetooth indicator shows Battery Level incorrectly

I installed iStat Meus, and Mighty Monitor on my new MBP 17" early 2011.
I'm using rechargeable batteries.
The bluetooth devices are Apple Wireless keyboard (3 batteries model), and Magic Mouse.

The battery indicator in the bult-in Bluetooth menu bar shows Keyboard has 47%, Mouse has 100%.
But both iStat Menus and Mighty Monitor showed Keyboard has 48%; Mouse has 60%.
I checked the com.apple.bluetooth.plist file; the battery level in the file shows the same as the iStat Menus and the Mighty Monitor, so I'm wondering if it's the OS issue.

I also tried reinstalling my Mac OS, and update back to 10.6.7. No luck.
Tried resetting PRAM and NVRAM. http://support.apple.com/kb/ht1379
Tried resetting SMC. (not sure if I did it right tho...) http://support.apple.com/kb/HT3964
I got no luck.

Anyone got the same issue?
Any way to fix it?

THANKS!

Message was edited by: AndrewLih

MacBook Pro (17" 2011), Mac OS X (10.6.7), iPad 2 WiFi 64GB (iOS 4.3), iPhone 4 GSM (iOS 4.3)

Posted on Mar 23, 2011 3:46 AM

Reply

Answer 1

Best reply

Barry Hemphill

Level 8

40,456 points

Mar 23, 2011 4:40 AM in response to AndrewLih

Hello Andrew:

I have not bothered to compare the mighty mouse widget readings with the system preference readings for quite awhile. When I read your post, I did so.

I found significant variations in the system preference area (wrong, I believe). I am NOT going to reinstall as I view this as a minor glitch. I will attempt to report it to Apple for investigation.

FWIW, I think the mighty monitor widget is showing the correct readings.

Barry

P.S. I think this is a new development with OS X 10.6.7

Reply

Answer 2

Mar 23, 2011 8:36 PM in response to Barry Hemphill

I'm having the same issue. Mighty Monitor and iStat Pro show the mouse at 55% but the built in one says 100%.

Reply

Answer 3

miniblog

Level 1

145 points

Mar 25, 2011 2:16 PM in response to autigers1970

Mac Pro (2006) with Apple built-in BT module and Magic Mouse have the same issue too.

Reply

Answer 4

Mar 26, 2011 3:33 AM in response to AndrewLih

All:

Additional feedback……

Lots of people are experiencing the problem. The problem is not isolated. I have reported it to Apple for follow-up.

In the meantime, the mighty monitor widget appears to be giving correct battery readings for both the mouse and KB.

Barry

Reply

Answer 5

timewart

Level 1

5 points

Apr 5, 2011 1:39 AM in response to AndrewLih

Yup - same issue.
iStats seems to be reporting changes in battery level (how accurate they are I'm never convinced), but the bluetooth menu bar keeps saying 100% for both my KB and trackpad.
Have an early 2011 Macbook Pro 15 inch.

Reply

Answer 6

mc_razza

Level 1

0 points

Apr 17, 2011 8:23 PM in response to timewart

Yep, I'm having the same issue here. Thought it was me until I found this thread. I'm using iStat Pro as well. It seems to be an issue with 10.6.7. Hopefully 10.6.8 (or 10.7) will rectify this.

Reply

Answer 7

Apr 18, 2011 11:53 AM in response to AndrewLih

I went to a local Apple store to ask about this same issue (tried multiple batteries) and they informed me it was a known problem in reporting the battery level. Should be addressed in a future release.

Reply

Answer 8

dtravis7

Level 1

0 points

Apr 19, 2011 8:55 AM in response to AndrewLih

Same issue here since 10.6.7 was installed. I am sure they will address it soon.

Reply

Answer 9

mc_razza

Level 1

0 points

Jun 23, 2011 6:20 PM in response to dtravis7

Just a heads up: 10.6.8 does not rectify this issue. 😟 We'll just have to wait until 10.7 Lion next month.

Reply

Answer 10

Jul 5, 2011 6:51 AM in response to mc_razza

I'm in ADC and i'm using OS X Lion GM build (11A511) does not resolve this issue.

I'm using a Mac Pro (Mid 2010) and the batteries level for Apple Magic Mouse and Wireless Keyboard are always 100%. ./. line in Mac OS X 10.6.7 and 10.6.8.

Apple fixit !!!

Reply

Answer 11

mc_razza

Level 1

0 points

Jul 20, 2011 7:16 PM in response to AndrewLih

Just another heads-up: I can confirm that Mac OS X 10.7 Lion exhibits the same bloody problem. Nice one, Apple.

Reply

Answer 12

Dec 7, 2013 11:16 AM in response to mc_razza

Just got this issue , using Mavericks 10.9

MacPro tower 5,1 2010 . Built in BT .

Both Keyboard and Magic Track pad bat levels are running down faster than they actually are .

Within 12 hrs ,

KB bat level from 100% to 19% .

remove bat lid , wait 10 seconds - only replace lid - bat level now reads 99% but after an hours use bat level now reads 77%

Repeat above , bat now reads 99% , i.e its broke.

Also BT KB or TP connecting and reconnecting at least once every 15 mins.

I have an external BT ariel fitted in a spare PCI slot. Range less than 2 meters now ,

used to work fine after that adidtion fix, no more.

Anyone from Apple looking in to this?

Reply

Answer 13

afo45td

Level 1

8 points

Dec 7, 2013 11:59 AM in response to kenspocket1

After browsing this topic, seems issue will resolved by purchasin a new keyboard or magic mouse ? It this correct?? Some post claim mouse interfears with keyboard ? which needs replacing, It should be replaced ar no charge correct ? replaced free dispite the time of purchase ? Apple is aware of this issue ?

Reply

Answer 14

Dec 7, 2013 12:49 PM in response to afo45td

07/12/2013 20:31:18.080 System Preferences[599]: [BluetoothHIDDevice][initWithHIDDevice] Unable to get Object ID from IORegistry

IS THIS RELATED?

Reply