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15" MacBook Pro Battery Tests: "Eight, freakin, hours"

brop52 said:
You said to take the battery out while using the AC adapter. I like to keep my CPU functionality and not worry about unplugging it and losing all the work. It is also well known that for people who use the computer for long periods of time that if they continuously cycle the battery without letting it sit charge it is going to die an early death. This is what I did with my first battery for this computer and it died in 3 months. Obviously it was probably a fluke, but it is an example. Batteries have limited lifespan in terms of cycles. If you are on the computer all the time you don't want to cycle it too much or you'll cut that battery lifespan short.
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I am not encouraging constant charging. I do not recharge until I hit 15-20% usually. I do a complete discharge about once per month. For those that want convenience, buy a laptop cooling pad which will keep the battery at friendly temperature when on ac mains power. I personally do not remove my battery on my Mac Book, but my battery still has 100% health after 1.5 years. I use my Mac Book about 2-3 hours per day on average. If I were using more like a desktop, I would remove the battery. And considering incentives, it does make sense for Apple to be very "conservative" on the battery advice as it makes money when you need a new one or just buy a new laptop :)
 
I just got my new MBP 13 and the first 2-3 cycles of battery didn't last 8hrs for sure, but 2 or 3 hrs. Should I wait a bit or contact the apple support?
Anyone else has the same issue?
 
it was never meant to last 8 hours. 8 hours is when you are doing low-end work. it might be possible. i have the new 13'' MBP too and after a full charge, when im not doing anything, the clock shows 7+ hours. but the moment i start using safari or itunes and ****, it drops to 3-4 hours. goes down even more when watching youtube. so battery life really depends on what you're doing.

as for your question on waiting or calling up apple, i dont think theres a need to for either. hope ive helped. :)

and since its new, it would be best to do the calibration process once, which was what i did, before using. in fact i did it twice, the second time was unintentional, as i wasnt near a power socket when i exhausted the battery
 
I got mine to last for 7hrs!!!! Thunderstorm all-night!! So I surfed the net for a few hours then watched a movie and some Friends:D
 
iAlexG said:
I got mine to last for 7hrs!!!! Thunderstorm all-night!! So I surfed the net for a few hours then watched a movie and some Friends:D
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13'' or 15'' or 17''?????

how do you get it on the internet plus a movie and a tv series for 7 hours???

damn i wish my 13'' could reach that
 
17" here. I charged it out of the box and it took 27 minutes to turn green from amber.

I've been setting it up with brightness at full, wifi on, display sleep and dim off. 2 reinstalls of OSX, one install of iLife, browsing between installs for research. Some playing around with System Prefs.

I've been going for 3:10 with another :59 to go. Simply amazing! I'm sure I could get between 6 and 7 with usable settings and browsing/iTunes/Pages

eV
 
AidenShaw said:
Apple should offer an external battery pack, or license the magsafe connector to APC or another company that makes external batteries.

That would solve the problem with airplanes or other situations where one is away from power for more than the capacity of the one internal battery.
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+1

But if there is enough demand I'm sure someone would do it.


Regardless, an external battery might be slightly troublesome when dealing with Airport security..
 
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