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Battery length screen shot 4.20 hours !
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Fresh-Faced Recruit
Join Date: Mar 2007
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I just wanted to provide a screenshot of my battery time. I turned off the sounds card, turned off bluetooth, turned down brightness and set the preferences to "Better Battery Life".
Just not sure how to put a screenshot here.
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Posting Junkie
Join Date: Nov 2000
Location: in front of my Mac
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How do you "turn off the sound card"? The MBP doesn't really have a sound card. Did you just turn off the volume?
The image has to be hosted somewhere else. Then you put the URL of the image between img tags. If you need a free image host, try imageshack.us
The 4:20 are a software estimate according to previously recorded battery discharge behavior. It doesn't necessarily give you an accurate prediction. It's an estimate. Depending on the state of your battery, the calibration, and your usage, deviations between the prediction and the actual battery time can be fairly large. I'm not saying 4:20 is impossible, but it's (as you already indicated) not something you'd get during 'normal' usage. And actually that's quite a shame. The MBP is an awesome notebook, but its battery time isn't stellar.
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Moderator Emeritus
Join Date: Apr 2005
Location: Cambridge, UK
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Haha, I loved the times when I'd wake up my iBook or PowerBook and it'd say 242:08 or something as my remaining battery life.
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Posting Junkie
Join Date: Nov 2000
Location: in front of my Mac
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Well somehow it's kinda sad. On an old G3 iBook 4:20 would have been nothing special at all. On a modern MBP we see 4:20 and immediately assume the prediction's off.
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Moderator Emeritus
Join Date: Apr 2005
Location: Cambridge, UK
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True, I could occasionally push 5:00 out of my iBook G4 but never the 6:00 apple tells us we can get.
On the up side, it's much better than what my Dell can get with it's two aging batteries put together.
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Senior User
Join Date: Mar 2007
Location: Illinois
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I don't think I've ever gotten past 3:50 on my MBP...
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Fresh-Faced Recruit
Join Date: Mar 2007
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Well after testing it out I did indeed get the 4.20 hours out of my battery. I know the indicator is only an estimate so I'll be conservative and say I got 4 hours. I used my MBP from around 6pm to just after 10pm.
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Fresh-Faced Recruit
Join Date: Apr 2007
Location: Austin, Texas
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The really weird thing is that changing the screen brightness doesn't seem to have as much of an effect as having WiFi on or off. Max battery life drops from 5 hours to 3.5 hours (new battery, recently calibrated). What's up with that?
Oh well, still better than the 1 hour I got fromt he dv9000t I returned with Vista. Bleck.
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15" MacBook Pro C2D 2.16Ghz | 2GB RAM | 120GB HDD | 128MB X1600 GPU
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Addicted to MacNN
Join Date: Mar 2006
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Doesn't 4.20 sound a bit (ahem) high?
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Fresh-Faced Recruit
Join Date: Mar 2007
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Originally Posted by peeb
Doesn't 4.20 sound a bit (ahem) high?
Well gee according to Apple:-
Battery and power
15-inch MacBook Pro
60-watt-hour lithium-polymer battery (with integrated charge indicator LEDs) providing up to 5 hours of battery life
You can double check that information if you like at http://www.apple.com/macbookpro/specs.html
Having read so many people mention they only get 2 hours or so I thought I'd mention my battery.
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Addicted to MacNN
Join Date: Mar 2006
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Dedicated MacNNer
Join Date: May 1999
Location: Port Angeles, WA.
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Originally Posted by peeb
Can you find some quote like that with my Pismo 8 yo battery with 3.50 h?
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It's "Brewed" not "Juiced"
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Forum Regular
Join Date: Jul 2005
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I can't even get over 1:30 on my PB G4 (last update before the MBP came out). You guys need to shut your mouths. God I'm ready to upgrade.
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Professional Poster
Join Date: Jan 2001
Location: brooklyn ny
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my 12" pb got 4-5 hours (reduced brightness, wifi & bt off);
of course i returned the battery in the Big Recall; my new battery doesn't do nearly as well (best about 4 hours).
guess this is better than the battery exploding (well, maybe...)
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"At first, there was Nothing. Then Nothing inverted itself and became Something.
And that is what you all are: inverted Nothings...with potential" (Sun Ra)
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Junior Member
Join Date: Sep 2005
Location: North Pacific
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I get about 4h - 4.5h on my PB w/ BT disabled and normal IMing and web surfing.
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17" PB G4 1.67GHz DL
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Grizzled Veteran
Join Date: Feb 2006
Location: Northern VA
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That's on my sister's brand new MacBook.
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iMac 24" | Core 2 Extreme 2.8GHz | 4GB RAM | 500GB HD
PowerBook G4 15" HR | 1.67GHz | 2GB RAM | 100GB HD
R.I.P 1995 Toyota Supra NA-T
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Posting Junkie
Join Date: Nov 2000
Location: in front of my Mac
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Calibrate it and you'll get more realistic readings.
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Grizzled Veteran
Join Date: Feb 2006
Location: Northern VA
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I was just pointing out that the reading isn't a very realistic one. For example, it says i have over four hours on my 7 year old pismo battery, and it never even got to three hours on my PowerBook G4.
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iMac 24" | Core 2 Extreme 2.8GHz | 4GB RAM | 500GB HD
PowerBook G4 15" HR | 1.67GHz | 2GB RAM | 100GB HD
R.I.P 1995 Toyota Supra NA-T
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Mac Enthusiast
Join Date: Jul 2006
Location: MA
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I get 2.5-3 hours on the MBP with casual usage. If I'm using FCP it's more like 1.5.
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