Take the 2-minute tour ×
Ask Different is a question and answer site for power users of Apple hardware and software. It's 100% free, no registration required.

So I got my first Apple laptop, a Retina MacBook Pro.

I heard that its best to let the laptop discharge until 0% in order to restart the battery cycle or something like that. However I know that lithium batteries have no memory effect and the only thing I would be restarting is the time estimator that shows how much time is left for use.

  1. I may be wrong so I want expert advice from you guys here, do I need to do anything regarding charging my laptop?
  2. Also, how much time am I supposed to expect when surfing the web, you tubing, Facebook, occasional Photoshop, Dropbox, etc.?
share|improve this question
add comment

2 Answers 2

up vote 3 down vote accepted

I think the best advice can be given by Apple:

http://www.apple.com/batteries/notebooks.html

In a nutshell, don't store it at extreme temperatures, store it at 50% charge if it'll be off for a long time, use it occasionally (don't leave it plugged into the wall 24/7/365), or at the very least do a complete discharge every month or two, is my understanding of how best to treat it.

As to expected life, I'm seeing about 6 hours realistically on my MBPr (2.6GHz), with the screen brightness at something I can actually see.

share|improve this answer
add comment

Also check out gfxCardStatus (that sounded like an endorsement, but I'm being serious here). I set it to lock in the Intel Graphics when I'm on battery, and I easily get 7–8 hours with the screen at about 60%, doing a mix of web browsing, coding, and mild graphics work.

Ars backs this up

share|improve this answer
    
I downloaded it and noticed an extra hour or two added to the battery duration !! Just a question, what is dynamic switching exactly ?? WHy dont I just put it discrete when on AC power ? –  Render Aug 2 '12 at 13:25
    
Dynamic switching is what the OS does—it uses the Intel chip, which consumers (much) less power, when you're not doing anything graphics-intensive, and only fires up the nVidia chip when its power is needed. Dynamic switching will keep your power bill down. ;) –  FeifanZ Aug 2 '12 at 13:50
    
Is connecting a secondary screen considered as a graphic intensive feature ? Because it turns into discrete mode as soon as I plug in the HDMI cable –  Render Aug 2 '12 at 13:53
    
It is, but the Intel chip should handle the second display fine: arstechnica.com/business/2012/04/… It also depends on the resolutions of the screens. If you have the MBP set to the 1920x1200 setting and you're plugging in a 27" inch cinema display, that's almost 13 million pixels, so you'd want the nVidia. But at 1440x900 + 1080p display, the Intel chip should be fine. –  FeifanZ Aug 2 '12 at 14:41
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.