Powerbook battery cycle count

Discussion in 'PowerPC Macs' started by hcuar, Jan 1, 2006.

  1. macrumors 65816


    Jul 23, 2004
    I was just looking at the battery info for my PB which is about 1.5 years old... It says that my cycle count is 59. I was wondering how many cycles the average battery will do with a resonable charge time? My absolute max capacity is 4400.

    I found the information with the following command:

    ioreg -l -w 0 | grep IOBatteryInfo
  2. macrumors 6502a

    beige matchbox

    Mar 16, 2005
    Oxfordshire, UK
    well, that command says mines done 139 cycles, and the max capacity is 4400

    I'm getting 3-4 hours from a full charge, eg. light goes green.

    So there should be lots more cycles left in yours :cool:
  3. Moderator emeritus

    mad jew

    Apr 3, 2004
    Adelaide, Australia
    Tiger has that information in System Profiler for those who think Terminal may bite. I've done 204 cycles on a battery that's about 1.5 years old FWIW. :)
  4. macrumors 68000


    Jun 9, 2004
    Rochester, NY
    My count is 1004... No typos there. My iBook's about 2 years old, as I got it for X-Mas two years ago. The current capacity is 996 out of an original 4400, and it only lasts about 50 minutes on a full charge. I bought a new battery from Apple last week, should be here Monday or Tuesday!! :D
  5. macrumors 65816


    Feb 19, 2006
    Dearborn (Detroit), MI, USA
    Should I let the cycle count be the deciding factor?

    I've got a new battery (two weeks) and it's cycle is 2.

    I just starting looking for this because I was trying to decide which of my old batteries were better to carry around for a spare. Should I let the cycle count be the deciding factor?

    One is at 372 and one at 204. The 372 is the one that I believe is the older one. So it's kind of a no brainer to keep to 204 on hand, right? (They're also 3567 and 3677 respectively for their capacity a lot closer than the cycles).

    Or should I factor in other "stuff"?

  6. macrumors 68020


    Mar 14, 2004
    Chicago, IL
    The cycles is usually a very good indication of how the battery will perform. However, that command and system profiler give you even better information than the cycles. The capacity tells you how much power it has at a full charge. The higher the number the longer the battery will last no matter how you look at it.

    Mine is 182 cycles, 22 months old, 4075 mAh max capacity.
  7. macrumors 6502a

    Apr 17, 2005
    My powerbook is a year old now.

    216 cycles and now my battery is 4171 max out of an original 4400

    getting about 3 hours.

    (rev d 12")
  8. macrumors 6502

    Feb 19, 2006
    My results

    Here are my results: Thought I would post them. this is a 5 year old TiBook with original battery... it lasts about a minute when unplugged. I don't have that many cycles, as it stayed plugged in a lot.
    When plugged in:
    Geoffs-Computer:~ geoff$ ioreg -l -w 0 | grep IOBatteryInfo
    | | | "IOBatteryInfo" = ({"Capacity"=263,"Amperage"=0,"Cycle Count"=416,"Current"=258,"Voltage"=16212,"Flags"=838860805,"AbsoluteMaxCapacity"=3600})
    | | | | "IOBatteryInfo" = ({"Capacity"=263,"Amperage"=0,"Cycle Count"=416,"Current"=258,"Voltage"=16212,"Flags"=838860805,"AbsoluteMaxCapacity"=3600})

    When running on battery:
    Geoffs-Computer:~ geoff$ ioreg -l -w 0 | grep IOBatteryInfo
    | | | "IOBatteryInfo" = ({"Capacity"=263,"Amperage"=0,"Cycle Count"=416,"Current"=258,"Voltage"=15345,"Flags"=4,"AbsoluteMaxCapacity"=3600})
    | | | | "IOBatteryInfo" = ({"Capacity"=263,"Amperage"=18446744073709551399,"Cycle Count"=416,"Current"=258,"Voltage"=15345,"Flags"=4,"AbsoluteMaxCapacity"=3600})

    Any ideas why the amp count is so high on the last one?
  9. macrumors 604


    Sep 11, 2004
    Canberra, Australia
    I'm up to 159 cycles in just under a year. I haven't noticed any difference in the time I get out of the battery though.
  10. macrumors 68030


    Dec 7, 2002
    Florida, USA
    Cycle Count=406 with my NewerTech battery from OWC. Still running longer than the Apple battery when it was new. Best purchase I've ever made.
  11. macrumors newbie

    Oct 15, 2010
    high amperage

    Not sure if anyone watches this forum anymore but iowamensan: did you ever figure out why your amperage is so high? My ~2003 17" Powerbook also has 17-digit amp counts while on battery and lasts about a minute. It's not my primary computer anymore (phew!), so just curious!
  12. macrumors 6502

    Feb 19, 2006
    Nope, never figured anything out. Not using the computer anymore.
  13. macrumors newbie

    Oct 15, 2010

Share This Page