: Conflicting Battery Reports on New MBPs?

Jun 25th, 2009, 09:52 AM
So, what's going on. Anandtech is reporting drastically different times from sites like Engadget and Gizmodo. I know that Anadtech tested using a script, and the other sites are doing "real world" testing, but I was really hoping for results like those shown via Anandtech. Any other sites with in depth battery life reviews?

AnandTech: Apple's 2009 MacBook Pro: Battery Life to Die For (http://www.anandtech.com/mac/showdoc.aspx?i=3580)
MacBook Pro (mid 2009) in-depth impressions (http://www.engadget.com/2009/06/18/macbook-pro-early-2009-in-depth-impressions/)
Gizmodo - MacBook Pro 2009 Review - Macbook pro review (http://gizmodo.com/5287179/macbook-pro-2009-review)

Jun 25th, 2009, 10:29 AM
There's Walt Mossberg's review from yesterday:

Review: Sealed-In Batteries in New Apple MacBook Pros | By Walter S. Mossberg | Personal Technology | AllThingsD (http://ptech.allthingsd.com/20090624/new-mac-laptops-use-batteries-sealed-for-power/?reflink=ATD_yahoo_ticker)

He seems pretty happy.

Jun 25th, 2009, 04:33 PM
I'm getting 5.5 to 6 hours on my 15". I can't complain. Having said that, I'll go back to your original question.

Perhaps some of the difference that you're seeing can be explained by how the battery life is tested?

Jun 25th, 2009, 05:44 PM
You have to look at your own real-world usage to determine the "real" life any battery.

My Blackbook can get up to four hours, but stick a DVD in there and that shoots RIGHT down to "will just barely finish the movie." When I'm working in Keynote as I often am, about three hours providing I'm not using the internet to hunt down images etc too much.

I routinely turn Bluetooth (and WiFi) off when I know I will be in a place where neither are available for a while (like the ferry), and I let the screen dim while I'm thinking of the next thing I want to write or illustrate. This seems to help a lot.

Recently I left my power adapter at home when going out to a presentation. For this, I had my Blackbook hooked to the screen so the keynote slideshow never dimmed and was always "sharing" graphics. I got through the two-hour class but was in the red zone by the time I shut down the projector. Whew!

When I decide I can afford to get the 15" or 13" MBP, I'm really looking forward to not having to think about battery life as much. I leave my machine plugged in most of the time (90%), but it would be nice to not have to pack the adapter quite so often. :)