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

zhensun

macrumors newbie
Original poster
Jul 1, 2007
7
0
I got the new MBP and the battery life is not 5 hours. I am on the lowest brightness and I have no other program running and the best I could get is 3.5. Is anyone else experiencing this?
 

LinMac

macrumors 65816
Oct 28, 2007
1,197
13
Which model Macbook Pro did you purchase and which options did you purchase with it?
 

ntrigue

macrumors 68040
Jul 30, 2007
3,805
4
Battery calibration is highly recommended.

Apple has adjusted battery life tests to be real world before Penryn. They used to be inaccurate.
 

pufftissue

macrumors regular
Sep 9, 2006
155
0
3.5 hours is probably correct. I usually half or multiply the official estimate by 0.6.

You can't use a machine at the lowest brightness unless you work in pitch dark conditions.
 

jTreu

macrumors 6502
May 20, 2006
318
0
always take like atleast 20% off of what they say, ad did you make sure to switch the graphics to integrated?
 

Steve686

macrumors 68040
Nov 13, 2007
3,885
1,910
US>FL>Miami/Dade>Sunny Isles Beach>Condo
Use your battery for a few more charges before you make the final judgment.
On my old MacBook, I went from around 4.5 up to around 5.75 hours with BT off, WiFi off, and low screen brightness, after about 20-30 battery cycles.

You don't need to drain the battery down or anything, but keep using the battery to make sure all the Li-Poly cells are getting activated.

So far, I am getting about 4 hours tops with same settings and "onboard" video activated. It does take forever for my battery to charge also. I am going to do a battery calibration after a few more cycles and see what I am at in about a week.
 

eddy64

macrumors regular
Feb 5, 2008
111
0
this is so disapponting. I always bragged about the mbp's battery life. I was really looking forward to 4-5 hours of battery, minimum.
 

coolb0yalex

macrumors member
Jul 3, 2008
98
0
are you energy saving (lower powered GPU) or the higher performance (high powered GPU)? Maybe that solves your problem?
 

LinMac

macrumors 65816
Oct 28, 2007
1,197
13
I turned on the low powered GPU (which is quite powerful in itself) and then turned the screen to my preferred setting (fairly dim).

I get 5 hours and about 30 minutes of browsing/work out of mine. I tested it to see exactly how much I could get out of it.
 

Steve686

macrumors 68040
Nov 13, 2007
3,885
1,910
US>FL>Miami/Dade>Sunny Isles Beach>Condo
I also turn off auto-brightness. This makes the screen brighter in bright light which will obviously cut down on batt time.

I also make sure during the day that the backlights on the keyboard are completly off.

A lot of little adjustments will go a long way.
 

acearchie

macrumors 68040
Jan 15, 2006
3,264
104
Cor all this complaining, I know you've all paid for a new laptop but in comparison my powerbook battery lasts for 4 minutes!
 

zhensun

macrumors newbie
Original poster
Jul 1, 2007
7
0
are you energy saving (lower powered GPU) or the higher performance (high powered GPU)? Maybe that solves your problem?

It is on the lower powered CPU. I'm going to keep going through more cycles of charges and see if it gets better. The time remaining on the battery jumps like crazy. One sec it was 3:38 left on 89% and then it said 1:24 on 86% and then back up again.

Do you guys think its the laptop or the battery?
 

snowmoon

macrumors 6502a
Oct 6, 2005
900
119
Albany, NY
It is on the lower powered CPU. I'm going to keep going through more cycles of charges and see if it gets better. The time remaining on the battery jumps like crazy. One sec it was 3:38 left on 89% and then it said 1:24 on 86% and then back up again.

Do you guys think its the laptop or the battery?

Bring up Activity Monitor and set it to All processes sorted by CPU. Check to make sure that something like backup ( TM ) or mdworker ( indexing ) is not running and consuming your cpu/battery.

If it doesn't get any better just bring it into the store and see what they have to say.
 

Tex-Twil

macrumors 68030
May 28, 2008
2,501
15
Berlin
I turned on the low powered GPU (which is quite powerful in itself) and then turned the screen to my preferred setting (fairly dim).

I get 5 hours and about 30 minutes of browsing/work out of mine. I tested it to see exactly how much I could get out of it.
not bad !
 

masse

macrumors 6502a
May 4, 2007
840
0
MA/GA
I'm kind of pissed they lowered the capacity...but who isn't? I don't run off of battery power much so it doesn't matter. What kinds of programs were you running? They do the tests surfing the internet and playing itunes I believe.
 

delude

macrumors 6502
Dec 27, 2007
458
34
UK
masse said:
I'm kind of pissed they lowered the capacity...but who isn't? I don't run off of battery power much so it doesn't matter. What kinds of programs were you running? They do the tests surfing the internet and playing itunes I believe.

Do you just run off the power AC power adapter? If so, do you leave your battery in or take it out?
 

Kane.Elson

macrumors regular
Jul 27, 2006
204
0
I hope when mine arrives it is more of the 5:30 mentioned than the 3's and stuff. It's kinda worrying that there is such a variance... Im hoping the people with low readings are just doing something silly like running programs in the background or something.
My thinkpad does 5 so I will be dissapointed with much less than that.
 

Tex-Twil

macrumors 68030
May 28, 2008
2,501
15
Berlin
I hope when mine arrives it is more of the 5:30 mentioned than the 3's and stuff. It's kinda worrying that there is such a variance... Im hoping the people with low readings are just doing something silly like running programs in the background or something.
My thinkpad does 5 so I will be dissapointed with much less than that.
I have 4.30 and Im doing nothing but surfing. Calibrated battery with 99% health, lowest brightness.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.