How long does YOUR battery last?

Discussion in 'Macintosh Computers' started by Glossybear, Apr 16, 2003.

  1. Glossybear macrumors member

    Joined:
    Oct 1, 2002
    Location:
    Hollywood CA
    #1
    There has been alot of battery discusion lately, with alot of numbers getting thrown around. I was wondering what everybody else gets on a full charge.

    The OS (10.2.4) on my 12 inch Powerbook estimtes about 3:30 hours on a full charge with BT off, AP on, brightness at 50% and on the reduced CPU setting.

    My iBook (600) at work got closer to 4:30 with those settings.
     
  2. NavyIntel007 macrumors 65816

    NavyIntel007

    Joined:
    Nov 24, 2002
    Location:
    Tampa, FL
    #2
    I get two hours if I'm lucky on the lowest brightness. Airport doesn't seem to make a difference to my machine. :mad:
     
  3. Over Achiever macrumors 68000

    Over Achiever

    Joined:
    Jul 22, 2002
    Location:
    Toledo, OH, formerly Twin Cities, MN
    #3
    I get about 3-3.5 hours on my 17" powerbook, all settings to max. energy savings. Screen about half brightness, light work.

    Full CPU load gives me about 2 hours.
     
  4. Les Kern macrumors 68040

    Les Kern

    Joined:
    Apr 26, 2002
    Location:
    Alabama
    #4
    14" iBook 3.5+hrs
    TiBook 3.0hrs ("old" 400 model)
    12" iBook 3hrs (no DVD)
    Normal wireless operation, mostly web/ftp work. Two can get through a DVD movie, but the TiBook barely makes it.
    I'm one of the lucky ones, I guess.
     
  5. caveman_uk Guest

    caveman_uk

    Joined:
    Feb 17, 2003
    Location:
    Hitchin, Herts, UK
    #5
    800Mhz 12" ibook - 3.5 hours. Full brightness, fairly heavy processor usage, No CD usage.
     
  6. backspinner macrumors 6502a

    Joined:
    Apr 29, 2002
    Location:
    Eindhoven
    #6
    When my PowerBook 550MHz was new, the battery lasted for 4 to 5 hours. After 1,5 year and about 1000 charges it lasts only 2 hours. But that is normal behaviour for batteries.
     
  7. Wardofsky macrumors 65816

    Joined:
    Aug 6, 2002
    #7
    For school I use a PC.

    Our school has 3 campuses, a few thousand in each, and everybody has a computer.

    So for my Toshiba Satellite 30CDT the starting up eats away 25% off a fully charged battery and then about 2% per minute, you do the math.

    But it's like (In school) all the computers are mass produced bakery products, they taste cheap and are cheap.

    But Macs are handmade (Metaphorically) and don't taste cheap, but sadly they are not cheap.

    I should shut up now...
     
  8. alset macrumors 65816

    alset

    Joined:
    Nov 9, 2002
    Location:
    East Bay, CA
    #8
    800 MHz iBook running 10.24 and running movies or music plus folding 24-7. I get about 3 hours if I'm lucky. Maybe 2.5 average.

    Dan
     
  9. filipp macrumors regular

    Joined:
    Feb 10, 2003
    Location:
    Sweden
    #9
    I get about 2,5 hours on my 17 PB. That's with medium load.
     
  10. xjohn macrumors regular

    Joined:
    Jan 6, 2003
    Location:
    Beijing
    #10
    Not long

    I get about 1.5 hours on my iBook 500, running minimal programs. It's nearly two years old, so I guess that's ok.

    Before I followed the instructions in the Knowledge Base articles about resetting the PMU and maximizing battery life, however, I was only getting around 20 minutes.
     
  11. RandomDeadHead macrumors 6502

    Joined:
    Feb 8, 2003
    Location:
    fennario
    #11
    4.5 hours on my wifes 14 inch ibook 800 under VERY light load.

    3 hours on the 2, 700mhz 12 inchers we have at the office under heavy load.
     
  12. sparkleytone macrumors 68020

    sparkleytone

    Joined:
    Oct 28, 2001
    Location:
    Greensboro, NC
    #12
    yeah me too. its always been that way with my iBook.

    GREAT avatar.
     
  13. NavyIntel007 macrumors 65816

    NavyIntel007

    Joined:
    Nov 24, 2002
    Location:
    Tampa, FL
    #13
    Thanks.

    I'm a little uneasy about buying a new battery. I don't want to buy a new battery only to discover that it did nothing. I'm getting a Powerbook over summer so I'll let my girlfriend deal with it (after all she's getting this ibook for free).
     
  14. CrackedButter macrumors 68040

    CrackedButter

    Joined:
    Jan 15, 2003
    Location:
    51st State of America
    #14
    5.5 hours with everything reduced, i can get higher but its not often i do.
     
  15. saint macrumors regular

    Joined:
    Jul 17, 2002
    Location:
    Sydney
    #15
    About 1hr on my iBook 500, bought Aug 2001.
    I don't want to spend money on a new battery because it may not give me a big improvement, or it may not last long.

    I mostly use it at home, plugged in anyway.
     
  16. DavidFDM macrumors regular

    Joined:
    Jan 26, 2002
    Location:
    Maine, USA
    #16
    My iBook 500/128/CD/15GB gets about 3.5 hours with Airport on, Brightness at about 75%.
     
  17. gopher macrumors 65816

    Joined:
    Mar 31, 2002
    Location:
    Maryland, USA
    #17
  18. Giaguara macrumors 6502a

    Joined:
    Nov 22, 2002
    #18
    mine blacks out once the battery charge has gone to 70 - 80 %. either forced sleep, or shutdown - without notice. so 40 mins (max) "safe working time". :eek:
     
  19. DreaminDirector macrumors 6502a

    DreaminDirector

    Joined:
    Sep 3, 2002
    Location:
    Ladera Ranch, CA
    #19
    Battery craziness....

    Yeah, my girlfriend just got her ibook battery replaced. She's had it for only about 8 months and it wouldn't stay on for more than 15 minutes after a full charge.

    I, on the other hand, have great battery life on my powerbook. It's not 5 hours like apple says it should, but I get about 3:30 on medium brightness and AP off.
     
  20. Giaguara macrumors 6502a

    Joined:
    Nov 22, 2002
  21. pdham macrumors member

    Joined:
    Jan 28, 2003
    Location:
    Madison
    #21
    I get 3.5 hours on my fairly new Ti 800 under a medium load. If i am not working on it continuously I get 4.5 hours or so... I am happy with it.

    Paul
     
  22. Eniregnat macrumors 68000

    Eniregnat

    Joined:
    Jan 22, 2003
    Location:
    In your head.
    #22
    for a rev B iTang that sees a lot of use

    Bat A- 2 to 3 hours, primary battery, charge and go
    Bat B- 3 to 5 hours, completly discharge and then recharge
    Bat C- 3 to 5 hours, completly discharge and then recharge

    All are from Apple and were ordered when I baught the computer.
     
  23. Wren macrumors regular

    Joined:
    Dec 10, 2002
    Location:
    Los Angeles
    #23
    I have been getting somwhere between 2 1/2 hours to about 3 hours on my new 17PB doing Word and cyber surfing. No iTunes, etc. I have my brightness to 3 dots. I don't recharge the battery until the 'red' signal comes on. During the day when using big apps like Video, Audio, I just plug it in. While we're on the subject of battery, is it a good idea to keep the laptop plugged in most of the time?
     
  24. GeneR macrumors 6502a

    GeneR

    Joined:
    Jan 2, 2003
    Location:
    The land of delusions, CA.
    #24
    30 minutes (if I'm lucky)

    Yep. Gotta get a new battery.

    366Mhz SE Clamshell ibook. Three years old.
     

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