So Who has battery issues with ML on rMBP?!

memko

macrumors member
Original poster
Oct 24, 2011
57
0
"In light of our test results, it appears that the battery life issues associated with Mountain Lion are generally limited to traditional MacBooks. While we would have liked to have been able test 10.7.4 on the rMBP, Apple’s battery life estimates for the rMBP lead us to believe that there is no significant battery life issue for the rMBP on Mountain Lion. Customers interested in moving to a Retina Display Mac should therefore not be too concerned about degraded battery life."

http://www.macobserver.com/tmo/article/retina_macbook_pro_mountain_lion_battery_life_10.8_vs_10.8.1/?utm_campaign=feature2

SO any objections to the above statement?
 

playsontheleft

macrumors regular
Jul 2, 2012
126
0
could you please give numbers under lion ,ML 1.8 and 1.8.1?
It depends on what I'm doing. Under actual work usage I tend to run it while charging and when I'm not, it fluctuates too much to really say. But for light use such as browsing the internet with Safari and listening to music with earphones, between 9 and 10 hours is very normal for me - capable of pushing 11, even, when I'm not listening to music. That said, though, I can tolerate having the screen at a very low brightness. Was I to raise it to a more normal level I'd expect 8-9 hours.
 

memko

macrumors member
Original poster
Oct 24, 2011
57
0
It depends on what I'm doing. Under actual work usage I tend to run it while charging and when I'm not, it fluctuates too much to really say. But for light use such as browsing the internet with Safari and listening to music with earphones, between 9 and 10 hours is very normal for me - capable of pushing 11, even, when I'm not listening to music. That said, though, I can tolerate having the screen at a very low brightness. Was I to raise it to a more normal level I'd expect 8-9 hours.
Very enlightening . Thank you very much :).
 
Last edited:

theineffablebob

macrumors regular
Jul 29, 2012
110
10
I feel like it decreased by about an hour. Under ML, I can surf the web on battery on ~40% brightness for around 6 hours.
 

flight1us

macrumors newbie
Aug 25, 2012
1
0
Ever since i made the switch to mountain lion i've experienced horrible battery life so horrible that i may only get about 3 to 4 hours out of a full battery charge. definitely not what i expected with moderate use with bluetooth off and use is just to check email and watch netflix with all settings set to 50 percent
 

theuserjohnny

macrumors 6502
Jul 7, 2012
450
7
I'm currently at 93% with an est of roughly 7hrs. I have the computer on half brightness and turned off the keyboard brightness.
 

memko

macrumors member
Original poster
Oct 24, 2011
57
0
Ever since i made the switch to mountain lion i've experienced horrible battery life so horrible that i may only get about 3 to 4 hours out of a full battery charge. definitely not what i expected with moderate use with bluetooth off and use is just to check email and watch netflix with all settings set to 50 percent
could you give more info about your device model ? from where did you buy it? and most important how was the battery life on lion ?have you tried reverting back to lion after the issue?
 

playsontheleft

macrumors regular
Jul 2, 2012
126
0
Ever since i made the switch to mountain lion i've experienced horrible battery life so horrible that i may only get about 3 to 4 hours out of a full battery charge. definitely not what i expected with moderate use with bluetooth off and use is just to check email and watch netflix with all settings set to 50 percent
3 to 4 hours while watching videos streamed from the internet sounds sort of normal to me, in all honesty. How is your battery life when you're not watching Netflix?
 

kirky1234

macrumors member
Jun 14, 2012
49
1
Definitely worse! Sometimes only 2.5 hours while surfing. Currently I have 90% battery and I'm streaming a video, at 2/3 brightness... gives me 1 hour 40 min...
 

katmeef

macrumors 6502
Jul 20, 2010
368
0
I still get around 7-8 hrs working in the garage (using parallels) before I have to run inside to charge it.
 

tivoboy

macrumors 68040
May 15, 2005
3,120
205
don't know

I can't really comment on ML vs. Lion, since this new rMBP came with 10.8 from the factory. I will say that the issue I HAVE is that just websurfing, opening pages and READING them results in about 4-4.5 hours tops. I have the brightness at about 2-3 clicks from the top, so don't really know the percentage. I'm not watching videos, engaging flash or other video technologies. I HAVE been using CHROME and or Safari for internet.

Honestly, I don't really find this performance acceptable for a machine of this engineering and $$$. I was getting 3.25 hours on a 2008 MBP with a 2.5 year old battery and was really hoping to get to something like 5.5-7 hours of normal use.

Not sure if it is the ML, the battery or the LG screen that requires a slightly higher brightness setting in order to be acceptable. These people who say 40-60% brightness is acceptable, I'm not sure if they have a different screen or are in a very low lit room?
 

memko

macrumors member
Original poster
Oct 24, 2011
57
0
so who recommends updating to 10.8.1 ? shall we still wait for 10.8.2?
 

cpm619

macrumors newbie
Jun 15, 2012
8
0
I'm definitely having battery life problems with my rmbp on 10.8.1. Somewhere around 4 hrs which is just unacceptable. I've tried all the fixes (reset PRAM, kill dock etc.) does nothing. Hoping 10.8.2 fixes this, and that it's soon.
 

monkeybagel

macrumors 65816
Jul 24, 2011
1,123
39
United States
Are those of you that are experiencing poor battery life noticing the machine getting warm or hot?

It seems that in OS X there is a fine line between really good battery life and fairly poor battery life, depending on the applications that are being used.

I have a standard MacBook Pro 15" with 10.8.1 and it is getting 7-8+ hours on WiFi with 4-5 Remote Desktop (Microsoft) connections running in various desktops in what was formally known as Spaces. I have yet to see poor battery life except when I installed Windows 8. I am assuming that it was because it was using discrete graphics the entire time. But boy did it get warm when running Windows 8. I think it estimated a little under 2:00 with a full charge with Windows 8.
 

Seany92

macrumors newbie
Jun 3, 2012
27
0
My rmbp shows 8hours of time remaining after a full charge. Usually the est time remaining is around 4 hours mark with just web surfing really. Seems to have improved the last day though giving better times. I did note that the odd time it was on dedicated graphics when doing nothing which would kill battery life.

Also it does get warm when watching videos and stuff, web browsing it doesn't.