How many cycles has your battery gone through?

Discussion in 'MacBook Air, MacBook & MacBook Pro' started by vicicasas, Jun 25, 2005.

  1. vicicasas

    vicicasas Active Member

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    According to Apple:

    "Battery Lifespan
    A properly maintained PowerBook or iBook battery is designed to retain up to 80% of its original capacity after 300 full charge and discharge cycles. You may choose to replace your battery when it no longer holds sufficient charge to meet your needs."

    "A charge cycle means using all of the battery’s power, but that doesn’t necessarily mean a single charge. For instance, you could listen to your iPod for a few hours one day, using half its power, and then recharge it fully. If you did the same thing the next day, it would count as one charge cycle, not two, so you may take several days to complete a cycle. Each time you complete a charge cycle, it diminishes battery capacity slightly, but you can put both notebook and iPod batteries through many charge cycles before they will only hold 80% of original battery capacity. As with other rechargeable batteries, you may eventually need to replace your battery."

    If you're running Tiger, open System Profiler (what? can't find it? Use Spotlight!) and look for the Power section under Hardware. The Battery Information section should tell you how many charging cycles your battery has gone through.

    Here's mine.
     
  2. penmanila

    penmanila The Pinoy Penman
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    here's mine--i don't know what the benchmarks are, but it doesn't look too bad for an albook battery that's 28 months old :)

    Battery Information:

    Battery Installed: Yes
    First low level warning: No
    Full Charge Capacity (mAh): 4151
    Remaining Capacity (mAh): 4000
    Amperage (mA): 0
    Voltage (mV): 12413
    Cycle Count: 111
     
  3. quicksilver

    quicksilver Member

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    Been puzzled by the way my battery's been behaving lately. Around two weeks ago, it could still charge up to 100%. However, for the past week, the highest I could get it up to was 86%.
    Good thing this thread came up. It turns out I've already gone thru 309 cycles, and my powerbook's only 15 months old. I just drained my battery and I'm now charging it.
    Here's my battery stats:
    Full Charge Capacity (mAh): 3047
    Remaining Capacity (mAh): 706
    Amperage (mA): 1312
    Voltage (mV): 11160
    Cycle Count: 309
     
  4. penmanila

    penmanila The Pinoy Penman
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    hi, quicksilver--could it be that you're doing what we caution muggers here NOT to do, which is to put your 'book through repeated charge/drain cycles? that's recommended for the first time you use your battery--i think to calibrate it--but after that, just keep your 'book plugged in and on sleep whenever possible. i can't think of any other reason for the relative good health (knock on wood) of my battery 28 months running. (my albook's the second-oldest in this country, by a day :) , and yes, it's a workhorse, i've never babied it, and it's on or on sleep practically 24/7.)
     
  5. quicksilver

    quicksilver Member

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    thanks for the advise, penmanila. fortunately, i read through the relevant threads here in philmug when i first acquired my powerbook, so i've been keeping it plugged in whenever possible. however, i have to bring it with me to meetings and sometimes it's just not possible to plug in, so there have been times when my battery was fully drained.
     
  6. waks13

    waks13 Active Member

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    Here's mine:

    Battery Information:

    Battery Installed: Yes
    First low level warning: No
    Full Charge Capacity (mAh): 2699
    Remaining Capacity (mAh): 2699
    Amperage (mA): 0
    Voltage (mV): 12482
    Cycle Count: 186
     
  7. elbert

    elbert Active Member

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    Butch, let's trade batteries! Amazing, 4.151? Wow! Are you sure that's your original battery? FYI, your 'book is older than mine and I got to replace my battery less than a year ago. You're a very lucky Mac user. :)

    Here's mine. I think I've been abusing:

    Battery Installed: Yes
    First low level warning: No
    Full Charge Capacity (mAh): 3334
    Remaining Capacity (mAh): 2922
    Amperage (mA): 939
    Voltage (mV): 12396
    Cycle Count: 337

    [Edited on 6-25-2005 by elbertc]
     
  8. Carlo

    Carlo Active Member

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    Here\'s mine.

    My Powerbook is turning 2 years old next month.
     
  9. jasondv

    jasondv Member

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    Sigh. My laptop is only 20 months old but my battery stats look so poor compared to penmanila's. Here are my stats:

    Battery Installed: Yes
    First low level warning: No
    Full Charge Capacity (mAh): 3399
    Remaining Capacity (mAh): 2758
    Amperage (mA): -1180
    Voltage (mV): 11397
    Cycle Count: 374
     
  10. hungryalien

    hungryalien Active Member

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    Battery Installed: Yes
    First low level warning: No
    Full Charge Capacity (mAh): 4265
    Remaining Capacity (mAh): 4155
    Amperage (mA): 0
    Voltage (mV): 12491
    Cycle Count: 50

    powerbook 15. 1ghz with 1gb ram.

    [Edited on 6-25-2005 by hungryalien]
     
  11. penmanila

    penmanila The Pinoy Penman
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    ooops--my bad! so sorry

    elbert, your question below suddenly reminded me that i did have a spare battery lying around, and i've been exchanging them now and then! i forgot what the last time was--maybe six months ago? so i looked for it and found it, and discovered (see below) that i've most probably been using the newer batt recently. here are the stats of the other/older (28-month old, used maybe 18-20 months total?).

    so sorry to make all your batts look bad with that first readout:) here's the reality check--still not bad at all, i guess

    Battery Information:

    Battery Installed: Yes
    First low level warning: No
    Full Charge Capacity (mAh): 3926
    Remaining Capacity (mAh): 2653
    Amperage (mA): 1186
    Voltage (mV): 12510
    Cycle Count: 99


     
  12. zagu

    zagu Well-Known Member

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    this is my profile

    Battery Information:

    Battery Installed: Yes
    First low level warning: No
    Full Charge Capacity (mAh): 4531
    Remaining Capacity (mAh): 4522
    Amperage (mA): 0
    Voltage (mV): 12505
    Cycle Count: 9


    1 month of use of pbook. pwede na ba?
     
  13. jps444

    jps444 Active Member

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    ZONE (Quezon City)
    Battery Information:

    Battery Installed: Yes
    First low level warning: No
    Full Charge Capacity (mAh): 4599
    Remaining Capacity (mAh): 4214
    Amperage (mA): 1003
    Voltage (mV): 12493
    Cycle Count: 5

    hehehe this is less than a month. let's say around 3 weeks? is this a good rate?
     
  14. mikaelrules

    mikaelrules Member

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    Here's mine:

    Battery Installed: Yes
    First low level warning: No
    Full Charge Capacity (mAh): 5187
    Remaining Capacity (mAh): 4942
    Amperage (mA): -2094
    Voltage (mV): 11939
    Cycle Count: 77

    1.33Ghz 17" PowerBook
     
  15. freelancer

    freelancer Active Member

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    I've abused mine. I won't even care to post the details. Even though, my iBook's battery is still holding up pretty well. 2 years and counting.
     
  16. elbert

    elbert Active Member

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    Still Impressive, Butch. And if you combine your two batteries' cycle count, they add up to 210. Significantly less than mine.

    Thank you Jason, for posting a higher cycle count than mine. For a while there, I was seriously considering going into rehab. phew! :)

    EDIT: wait a minute, ako pa rin ang pinaka abusado--it was just last December that I replaced my battery :( Hi I'm Elbert, and I'm a 'bookaholic...

    [Edited on 6-25-2005 by elbertc]
     
  17. jluc

    jluc Member

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    Battery Information:

    Battery Installed: Yes
    First low level warning: No
    Full Charge Capacity (mAh): 4171
    Remaining Capacity (mAh): 2685
    Amperage (mA): -1228
    Voltage (mV): 11417
    Cycle Count: 320


    hmm here is mine.;) my pb is turning 1 year in july. was just curious, so is it recommended to keep it on sleep rather than switching it off? how can one lessen the cycle counts?
     
  18. redtamayo

    redtamayo Well-Known Member

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    TiBook 867Mhz G4 15":

    Battery Information:
    Battery Installed: Yes
    First low level warning: No
    Full Charge Capacity (mAh): 3523
    Remaining Capacity (mAh): 3332
    Amperage (mA): 0
    Voltage (mV): 16562
    Cycle Count: 216
     
  19. longbeard

    longbeard Active Member

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    Battery Information:

    Battery Installed: Yes
    First low level warning: No
    Full Charge Capacity (mAh): 4410
    Remaining Capacity (mAh): 4402
    Amperage (mA): 0
    Voltage (mV): 12619
    Cycle Count: 65


    My iBook will turn one year old on July 31.. time flies soo fast..
     
  20. angel_benet

    angel_benet Active Member

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    Battery Information:

    Battery Installed: Yes
    First low level warning: No
    Full Charge Capacity (mAh): 4595
    Remaining Capacity (mAh): 4573
    Amperage (mA): 0
    Voltage (mV): 12589
    Cycle Count: 14

    looks good to me :)
     

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