10% battery wear off the factory

Discussion in 'Dell XPS and Studio XPS' started by Sir Punk, Apr 22, 2020.

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  1. Sir Punk

    Sir Punk Notebook Deity

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    I have just received a new 5540, I am posting here however as it seems a more common problem for XPS, and my battery wear is 10%, battery is a 97kwh but recharges only to 87kwh.

    I have read the guide about completely discharging the battery and then do a full recharge. Is this a wise thing to do? I don't understand how they can sell a high capacity battery with 10% less capacity. I almost want to request a battery exchange.

    What are people experiences with this.
     
    Last edited: Apr 22, 2020
  2. sumsum

    sumsum Notebook Consultant

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    Same here. Ordered a new Dell genuine 97kwh battery for my 9550. wear level on arrival 10%.

    No clue if this is by design or just coincidence.
     
  3. kojack

    kojack Notebook Prophet

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    Probably a design of the battery.
     
  4. Sir Punk

    Sir Punk Notebook Deity

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    Than I would say it's misleading to sell a 87kwh battery for something else. Most the laptops I have had came with 0-3% wear level at the most.
     
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  5. maffle

    maffle Notebook Evangelist

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    ... That is by design. The wear level of 10% is set in bios, you can set that to 0 if you want.
     
  6. Sir Punk

    Sir Punk Notebook Deity

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    Where exactly? Because I can't find it.
     
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  7. sumsum

    sumsum Notebook Consultant

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  8. Sir Punk

    Sir Punk Notebook Deity

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    Actually I didn't think enough about that statement, wear level is a property of a battery not a "setting", at most in the BIOS you can set the max % of charge.

    That's the guide I was mentioning, but I would prefer an official answer from Dell.
     
  9. maffle

    maffle Notebook Evangelist

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    Mine, oh wonder, also came with 90% (~87 instead of 97). Every Dell laptop comes with a 10% configured wear level. Was it so hard to google about it?

    https://www.dell.com/community/XPS/A-brand-new-Dell-XPS-13-2-in-1-battery-wear-level-9/td-p/7445589

    https://www.dell.com/community/Lapt...XPS-9560-shows-90-battery-health/td-p/5080292

    https://www.reddit.com/r/Dell/comments/8qjyki/does_anyones_xps_15_9570_have_a_battery_with/

    [​IMG]
    You can set it to custom and then 100%, then the capacity should change over time. But why should you do that, that will just ruin the battery.
     
    Last edited: Apr 22, 2020
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  10. jeremyshaw

    jeremyshaw Big time Idiot

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    The wear level that these Dell laptops come with from the factory has absolutely no relation to the battery charge threshold. Setting the threshold to 100% will still only get 87Whr out of the battery. Setting it to 90% will get less than 87Whr. I know this from experience with my XPS 15 7590. It's just a scam that Dell runs, advertising 97Whr when they are really delivering 87Whr, since contacting their support results in a dead end. For these reasons and many others, I've since gotten rid of my XPS 15 7590 and went back to my X1C6.

    Battery wear =/= charging threshold.
     
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