Apple on notebook batteriesGGJstudios said:
I get 10 hours, turn bluetooth off, turn the brightness down to half way and surf the web, If i run brightness at the lowest one I get 10 hours even with WiFi on.So from what I understand my 2 month old MBP is supposed to have a 10 hour battery which is a stretch! I would say 5 hour battery at best, which is great and im not complaining but 10 hour eh? Is that while the computer is sleeping?
i have another explanation for that:That is with brightness turned down, Wi-Fi and Bluetooth off, and non-intensive computing.
turn the brightness down to lowest settingcan't get 10 hrs with wifi surfing(no flash) and 50% brightness
I get 10 hours so I'm lying?i have another explanation for that:
its called MARKETING / ADVERTISING .
in no way you get 10 hours of battery , and what you said mean not using the computer at all ! so whats the point ? the real battery life is around 5 hours.
6 at best.
Have you calibrated it?
You have read any of the links I provided in the post you quoted?
Have you selected ALL PROCESSES? You can quit the applications you don't want to use, if they bother you.When I look at the process monitor, it shows ical and address book running, both of which I don't use. Is there a way to keep them from running until/if I open them?
It says up to 10 hours. It's a maximum theoretical battery life based on a number of varying factors:So from what I understand my 2 month old MBP is supposed to have a 10 hour battery which is a stretch! I would say 5 hour battery at best, which is great and im not complaining but 10 hour eh? Is that while the computer is sleeping?
Have you calibrated it?
Have a look at Activity Monitor ( Applications / Utilities / ) and select All Processes and sort by CPU to see what the culprit may be.
image below uses sorting by CPU as an example
While the MBP sleeps, it uses 1% of its charge for one hour of sleep, as the RAM needs to be powered during sleep.
Apple on notebook batteries
Apple Portable: Calibrating your computer's battery for best performance
Laptop Battery Guide
Gotcha, im going to calibrate it now.You have read any of the links I provided in the post you quoted?
Have you selected ALL PROCESSES? You can quit the applications you don't want to use, if they bother you.
Flash uses lots of energy, kill it
kill WiFi (use ethernet)
turn light all the way down (only 1 notch)
turn iTunes/audio off
surf the internet or word processing
when not in use close lid
Either you're exaggerating, or your battery should be replaced. And take all the other things that influence the battery life into account, as mentioned a few posts up.Theres no way you can get 10 hours with browsing. Unless the computer is idle, as soon as I move my mouse I get battery life around 6 hours, then when I open a webpage it goes down to 3. Calibrated and all, 10 hours is way too much of a stretch. Maybe without wifi, but no way you could get 10 hours with wifi.
The 13" is the only one that advertises a 10 hour battery I believe.13" or bigger?
If it'S one of the models with the discrete nVidia card, check out gfxCardStatus to see what triggers use of the nVidia card, which is a considerable drain on the battery.