Previous 1 2 Next 17 Replies Latest reply: Dec 3, 2008 2:42 PM by Yass09
annism Level 1 Level 1 (0 points)
I have been reading about the cycle count. (no I don't have insomnia I have been having some charging problems.) I keep reading about cycle counts up to 300. I took my MacBook Pro into see a Genius and they told me that the count of '7' is healthy. Could some one please explain what is healthy. Should I be concerned? Should I buy a new battery this one is 5 months old.

Charge Information:
Charge remaining (mAh): 5441
Fully charged: Yes
Charging: No
Full charge capacity (mAh): 5441
Health Information:
Cycle count: 7
Condition: Good
Battery Installed: Yes
Amperage (mA): 147
Voltage (mV): 12600

MacBook Pro, Mac OS X (10.5.5)
  • Kappy Level 10 Level 10 (250,665 points)
    According to the information in System Profiler your battery is in nearly perfect condition. Your full charge capacity is 5441 mAh. The full charge capacity of a new battery averages around 5500 mAh, so your battery is at 99%. What "charging" problems are you having?
  • neuroanatomist Level 7 Level 7 (31,690 points)
    Basically, lithium-based batteries like the one in your computer have a useful life of 400-500 charge cycles. The "up to 300" is based on Apple's spec that a properly maintained notebook battery should maintain 80% health for 300 cycles.

    As Kappy stated, your battery is in great shape (note that Kappy is assuming you have a 15" MBP, which is probably the case; if you have a 17" MBP your health is 86%, which is not great, but is still good and within spec). My only recommendation would be to calibrate your battery every month or so:

    http://support.apple.com/kb/HT1490

    (Normally, calibrating every two months is appropriate, but you do not seem to use your battery that much - 7 cycles in 5 months - so monthly calibration is better for you. My personal recommendation is 1-2 cycles per week.)
  • Scott Burnett Level 1 Level 1 (0 points)
    I have a Macbook which is about 2 1/2 years old.
    Charge Information:
    Charge remaining (mAh): 4886
    Fully charged: Yes
    Charging: No
    Full charge capacity (mAh): 4892
    Health Information:
    Cycle count: 506
    Condition: Good

    Should I be concerned about the cycle count of 506?
  • neuroanatomist Level 7 Level 7 (31,690 points)
    Concerned? No. Pleased? Yes! Your battery is in great shape for such a relatively high cycle count. However, do be aware that battery performance can decline fairly fast, so now's the time to start putting some $ aside for a new battery (it's likely that you'll need one soon).
  • griffdb Level 1 Level 1 (0 points)
    Is there a chart or graph of what constitutes a "good" battery profile vs. cycle count? I'm thinking of something like # of cycles on the x-axis and mAh's on the y-axis.

    Thanks.
  • kyerdon Level 1 Level 1 (0 points)
    I purchased a MacBook Pro towards the end of summer 2006 and without using my AC adapter I'm only getting about 20 minutes if lucky of battery life. I purchased the AppleCare Plan and I was curious if anyone thought that Apple would cover it? Here's my battery information right now (it just died & I just had to put it back on the charger so if the numbers look a little funny that'd be why I guess)

    Battery Information:

    Battery Installed: Yes
    First low level warning: No
    Full Charge Capacity (mAh): 968
    Remaining Capacity (mAh): 334
    Amperage (mA): 1811
    Voltage (mV): 12456
    Cycle Count: 107

    ...anything look out of wack?
  • Jo Ann+Webb Level 4 Level 4 (1,870 points)
    I'm afraid that your battery is about used up, as it has less than 20% of its full charge capacity left. This is not unusual for an MBP battery over two years old, but not for one with only 107 cycles. It is unlikely that AppleCare will give you a new battery, but it's worth a try if you can show that some manufacturing defect was the cause of your battery's demise after only 107 cycles. As a comparison, my two batteries are about the same age as yours, have 221 and 229 cycles and both have over 90% of their original full charge capacities.
  • jujubee_527 Level 1 Level 1 (0 points)
    Hmm , my MBP will be 2 years old in December and my battery looks like this:
    Charge Information:
    Charge remaining (mAh): 3309
    Fully charged: Yes
    Charging: No
    Full charge capacity (mAh): 3436
    Health Information:
    Cycle count: 88
    Condition: Check battery
    Battery Installed: Yes
    Amperage (mA): 0
    Voltage (mV): 12388
    Since mine is nearly 24 months old, do I need to get a new battery soon as well. Not sure how you read this as healthy or not. Thanks for all your help!
    Julie
  • jlynnes Level 1 Level 1 (5 points)
    My battery is about 11 months old:

    Charge Information:
    Charge remaining (mAh): 2943
    Fully charged: Yes
    Charging: No
    Full charge capacity (mAh): 2943
    Health Information:
    Cycle count: 57
    Condition: Check battery
    Battery Installed: Yes
    Amperage (mA): 148
    Voltage (mV): 12632
  • kyerdon Level 1 Level 1 (0 points)
    Hmm well that stinks. I guess I'll have to give apple a call tomorrow and find out if they'll cover a new battery, I'd think that they would. I work for Best Buy and in our protection plans we cover battery replacements but then again, our plans cover much more than theirs does. Not saying I don't appreciate their applecare plan because it's been a life saver for me having already replaced a hard drive AND an optical drive. If they don't cover it I'm debating on whether to buy a new battery or just keep the computer for at home, sell my HP desktop and then possibly buy a cheap laptop to use for school...
  • greenolivetree Level 1 Level 1 (0 points)
    I thought my battery condition is not good and searching the forum to find out. Looks like your battery is not in good shape. My 11 month old MBP bettery information:

    Charge Information:
    Charge remaining (mAh): 4779
    Fully charged: Yes
    Charging: No
    Full charge capacity (mAh): 4881
    Health Information:
    Cycle count: 150
    Condition: Good
    Battery Installed: Yes
    Amperage (mA): -66
    Voltage (mV): 12448

    I'm not sure if mine is good shape or not. Even with full charged battery, battery indicator say only 2hr remains.

    Message was edited by: greenolivetree
  • kyerdon Level 1 Level 1 (0 points)
    I would just be concerned that it says your amperage is -66
  • Soohwa Level 1 Level 1 (0 points)
    Hello:

    For a few (3?) months my charging LED has been blinking orange/green back and forth sometimes while my screen shows "Calculating", "Not Charging", or "Charged". I have not noticed any serious performance problem. Finally I just decided to check the 2.25-year-old battery to see if there's anything I should be concerned with. What I found that worries me most is:

    "Fully Charged: No"
    "Condition: Check Battery"

    My MBP is plugged in most of the time. Do you see anything of concern? Any tips will be much appreciated.

    Battery Information:

    Model Information:
    Serial Number: SMP-ASMB012-3476-7c
    Manufacturer: SMP
    Device name: ASMB012
    Pack Lot Code: 0001
    PCB Lot Code: 0000
    Firmware Version: 0102
    Hardware Revision: 0400
    Cell Revision: 0100
    Charge Information:
    Charge remaining (mAh): 4106
    Fully charged: No
    Charging: Yes
    Full charge capacity (mAh): 4106
    Health Information:
    Cycle count: 170
    Condition: Check battery
    Battery Installed: Yes
    Amperage (mA): 95
    Voltage (mV): 12471
  • g5g4g3 Level 1 Level 1 (5 points)
    I bought macbook pro 3 months ago but the system profiler says its 7 months old? and my cycle count is 47 and my max capacity is 5284 which is about 93 percent. is that normal? my battery is not stable sometimes its at 96 percent and then down to 93 but most of the time is around 93 or 94.
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