Sidebar Sidebar
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

2011 MBP Battery performance.

Southernboyj

Southernboyj

macrumors 68000
Original poster
Mar 8, 2012
1,696
76
Mobile, AL
I've only had my MBP about a week (13")
Apple advertises 7 hours of battery life, but this seems far fetched to me.

What is the setting Apple bases this on? The screen backlight on lowest settings and keyboard backlight off?

Also how much does the backlit keyboard effect battery? Cause I LOVE this feature.
 
Southernboyj said:
No one?
Click to expand...

Ummm, less knowledged on the newer models but I know apple is pretty lax in their battery estimates. Charge the thing up, turn the backlights down to minimum and see what the battery estimate gives you. Then just multiply up by whatever health your battery is lacking, and maybe we'll have 7 hours.

I have never personally seen a laptop go over 6 hours (any apple at least). Our mid-2009 gets 2 hours with me using it (lots of tabs/browsing/light rendering), but I can stretch it to around 4 and a bit above with low backlight and not a heavy load. And the battery shows 75% health!

Edit: Keyboard backlight took off 15min of battery life for the estimate, tested just now.
 
Southernboyj said:
I've only had my MBP about a week (13")
Apple advertises 7 hours of battery life, but this seems far fetched to me.

What is the setting Apple bases this on? The screen backlight on lowest settings and keyboard backlight off?

Also how much does the backlit keyboard effect battery? Cause I LOVE this feature.
Click to expand...

This is what the Apple website says about the 7 hours:

Wireless web testing conducted by Apple in October 2011 using preproduction 2.8GHz dual-core Intel Core i7–based 13-inch MacBook Pro units, preproduction 2.4GHz quad-core Intel Core i7–based 15-inch MacBook Pro units, and preproduction 2.4GHz quad-core Intel Core i7–based 17-inch MacBook Pro units. The wireless web test measures battery life by wirelessly browsing 25 popular websites with display brightness set to 50%. Battery life varies by use and configuration. See www.apple.com/batteries for more information.

I find that I can get 7 hours out of my MBP, but 5-6 is more realistic under normal use for me. This is also with 12/16 brightness and keyboard backlight.
 
Been a lurker here for quite some time. ;)

A battery run time of 5-6 hours isn't unusual for my 2010 MacBook Pro. I leave the WiFi and Bluetooth on, keyboard backlight is on and screen backlight down 4 bars from max.

The screenshot shows actual time running on the battery with separate entries for both sleep time and off time.

Usage is mostly single-tab web browsing and/or email.

The entry for 2012-04-23 is just a bit misleading. The computer shut down so I let it sit for a few hours (battery calibration) and then connected the charger. It charged for a little while before I turned it on so that's why the end percentage is 26%.
 

Attachments

  • BattLog.png
    BattLog.png
    73.6 KB · Views: 58
DimensionDude said:
Been a lurker here for quite some time. ;)

A battery run time of 5-6 hours isn't unusual for my 2010 MacBook Pro. I leave the WiFi and Bluetooth on, keyboard backlight is on and screen backlight down 4 bars from max.

The screenshot shows actual time running on the battery with separate entries for both sleep time and off time.

Usage is mostly single-tab web browsing and/or email.

The entry for 2012-04-23 is just a bit misleading. The computer shut down so I let it sit for a few hours (battery calibration) and then connected the charger. It charged for a little while before I turned it on so that's why the end percentage is 26%.
Click to expand...
Hi and welcome,What app do you use to show the battery life etc.?
 
You must log in or register to reply here.
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.
Top Bottom
Back