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Latitude E6400 Owner's Lounge, Part 2

Discussion in 'Dell Latitude, Vostro, and Precision' started by Commander Wolf, Oct 6, 2009.

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  1. ronan_zj

    ronan_zj Notebook Evangelist

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    I have a question, how do we recondition the E6400 battery to reach its full capacity again? I used to have Lenovo T60, and it has its own software to recondition the battery(discharge it and charge it for 3 times).
     
    ronan_zj, Jan 29, 2011
    #1201
  2. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    Just run the battery down as far as Windows will let you go until it shuts down / hibernates. Then start the computer (on battery) and go into the BIOS setup and leave that running until the computer stops. Then do a full recharge.

    John
     
    John Ratsey, Jan 29, 2011
    #1202
  3. ronan_zj

    ronan_zj Notebook Evangelist

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    I did it yesterday night one time, and my current full capacity is 71995mWh while the full designed capacity is 84915mWh, so there is 15% capacity drops.
     
    ronan_zj, Jan 29, 2011
    #1203
  4. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    How old is your E6400? 15% loss of capacity is not bad for a battery that has been used for at least one year.

    John
     
    John Ratsey, Jan 30, 2011
    #1204
  5. ronan_zj

    ronan_zj Notebook Evangelist

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    its almost 2 years old.
     
    ronan_zj, Jan 30, 2011
    #1205
  6. Joel

    Joel coffeecoffeecoffeecoffee

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    That's really good for a 2 year old battery. I don't think there is much else other then what John suggested to maybe get back a few %.
     
    Joel, Jan 30, 2011
    #1206
  7. ronan_zj

    ronan_zj Notebook Evangelist

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    I actually hardly use the battery, I think I only charged to 100% 20 times since March 2009.
     
    ronan_zj, Jan 30, 2011
    #1207
  8. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    I agree. That's similar to my E6400's battery when I sold the computer after 2 years.

    John
     
    John Ratsey, Jan 30, 2011
    #1208
  9. ohadfreund

    ohadfreund Notebook Guru

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    Even this solution will not give you few % it will only improve the battery meter...
    There is no way to improve the life of lithium ion battery.
    How to prolong lithium-based batteries
    Is lithium-ion the ideal battery?
     
    ohadfreund, Jan 31, 2011
    #1209
  10. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    But since Windows works from the battery meter to trigger low battery shut down, fixing the calibration will give more battery run time.

    John
     
    John Ratsey, Jan 31, 2011
    #1210
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