: Conflicting Battery Reports on New MBPs?


milhaus
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)

Paddy
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.

8127972
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?

chas_m
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. :)