Battery Life Estimates on Macbook Pro using Automator

Discussion in 'MacBook Pro' started by pdoken, Jan 10, 2010.

  1. pdoken macrumors newbie

    Aug 11, 2009
    Hey Guys,

    I created a little battery test to test out my
    2009 Unibody Macbook Pro. The test basically is a automator workflow that refreshes 2 websites every 30, and 20 seconds respectively. It will continually loop for 500 minutes (your laptop will probably be gone by then). I was a little disappointed by the results. I got a little more than 4.5 hours. I know got around 8.14 hours. Anyway please see below, and if anyone wants to duplicate the test, please go ahead.

    Machine: Macbook Pro 5,3 , 3.06 Ghz, 4 GB ram, 7200 rpm hard drive,
    9400M/9600M GT graphics

    Model Information:
    Serial Number: W0932AXAL77YA
    Manufacturer: SMP
    Device name: bq20z451
    Pack Lot Code: 0000
    PCB Lot Code: 0000
    Firmware Version: 0003
    Hardware Revision: 0003
    Cell Revision: 0100
    Charge Information:
    Charge remaining (mAh): 274
    Fully charged: No
    Charging: Yes
    Full charge capacity (mAh): 6198
    Health Information:
    Cycle count: 23
    Condition: Normal
    Battery Installed: Yes
    Amperage (mA): 4253
    Voltage (mV): 11690

    Setup: All applications closed, all non system background process stopped, firewall stopped, file sharing off. Bluetooth off, screen [half brightness], keyboard backlight off, battery fully charged 100%. Make sure in the energy saver, computer sleep and display sleep are set to "never" and uncheck "Put hard disk(s) to sleep when possible. I also set my screen saver to "never" in the Desktop & Screen Saver item in System Preferences. "Bettery battery Life" used in Energy Saver - System Preferences

    How to run test: Download the attached automator workflow. Open it, save it as [change File Format to Application], and run it. {not sure: running it as a application vs workflow, might be more efficient, and thats how i tested it}. Once your system, shuts off due to power, replug the power adapter, stop the workflow, and search in finder for a log file called "datetime3.log". Subtract the final entry (choose the time at the bottom that is the first time, that is less than the time after you plug in and power on the computer from its discharged state; because after you power it on the test will still run, so you have to kill the battery test immediately), from the first entry. That should give your battery life estimate.

    My results:
    Start: Sun Jan 10 21:23:46 EST 2010
    End: Mon Jan 11 01:57:17 EST 2010
    Result: 4:34 hours

    Attached Files:

  2. TheDoctor7x macrumors member


    Oct 30, 2013
    You *******. This opens and

    Don't use this.

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