Dell Battery Longevity Mode on XPS 12

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Dell Battery Longevity Mode on XPS 12

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Hi guys, I recently purchased a Dell XPS 12 and am a big fan. It prompted me the other day though to enable longevity mode, because I am constantly switching between plugged in and battery. I figured "fair enough seems like a good idea", clicked enable and went back to my business. I'm noticing that over the next couple of days that I've had it, it keeps charging to 100%. Unless I'm wrong, longevity mode should prevent that, and charge it to only 90% or so, correct? I clocked the "Charge Battery to 100% One Time" the first time I did it, and it charged to 100%, and now the option is greyed out. Perhaps it has become stuck in this mode?

Wondering if anyone has come across this problem before (if it even is a problem), and if someone has a fix for it.

Here is a screenshot of my settings for it. Let me know if there is anymore information you need.

Verified Answer
  • Hi Arseface,

    Thanks for your reply. In Longevity mode battery would charge only above 88 percent. So if battery is below 88 percent it would not charge until and unless battery reaches 7 percent.

    So, battery would drain out completely and then only charge which is good for the battery and would increase overall life of the battery.

    Hope it answers your query. If you have any further queries, please feel free to contact us.

    Thanks and Regards
    Sandeep P
    #iworkfordell

    Thanks and Regards
    Sandeep P
    #iworkfordell

    To know more about Dell Product Support, Drivers & Downloads, Order & Dispatch status -> choose your region US Customers; UK Customers; India Customers. For Dell support videos click Here.

All Replies
  • Apparantly it doesn't want to show the screenshot. My bad. It just says that longevity mode is enabled, and the charge to 100% button is greyed out.

  • Hi Arseface,

    Welcome to the community.

    I would like to inform you that battery would charge to 100 percent on longevity mode as well. Please check this information that would be useful for you:

    LONGEVITY MODE :

    When a system is plugged in and unplugged several times a day, it may reduce the life of the battery. When the longevity mode setting is enabled, it protects the battery from frequent charge and discharge cycles. The battery only charges between 88%-100% when longevity mode is enabled.

    The system pops-up a notification based on user behavior.

    The default setting for longevity mode is OFF.

    If the end user wants the battery charge back to 100% at any time, they can activate the setting by clicking the Charge Battery to 100% one time button. This will enable the battery to charge back to 100% from any capacity one time.

    When the battery discharges to below 7%, the longevity mode gets disabled. The battery will start charging normally and will be able to charge fully.

    When an unsupported battery is installed, the options under longevity mode would be greyed out.

    Hope this answers your query. If you have any further queries, please feel free to contact us.

    Thanks and Regards
    Sandeep P
    #iworkfordell

    Thanks and Regards
    Sandeep P
    #iworkfordell

    To know more about Dell Product Support, Drivers & Downloads, Order & Dispatch status -> choose your region US Customers; UK Customers; India Customers. For Dell support videos click Here.

  • Thanks for your reply, Sandeep. However I am still confused. If the battery is still charging to 100% with longevity mode on, what difference does it actually make? What is it doing to preserve the battery life?

  • Hi Arseface,

    Thanks for your reply. In Longevity mode battery would charge only above 88 percent. So if battery is below 88 percent it would not charge until and unless battery reaches 7 percent.

    So, battery would drain out completely and then only charge which is good for the battery and would increase overall life of the battery.

    Hope it answers your query. If you have any further queries, please feel free to contact us.

    Thanks and Regards
    Sandeep P
    #iworkfordell

    Thanks and Regards
    Sandeep P
    #iworkfordell

    To know more about Dell Product Support, Drivers & Downloads, Order & Dispatch status -> choose your region US Customers; UK Customers; India Customers. For Dell support videos click Here.

  • Dell - Sandeep P,

    A person of reasonable computer intelligence should be able to easily understand Dell's battery options on these supported batteries. I am. I do not. Suggest Dell gets a technical writer who can make this clear for the common joe. That should have been done by now; did I miss it ?

  • Thank you Sandeep, that answers my question.

    I agree with you maxd, 100%. I'm studying computer engineering and don't consider myself to be a novice when it comes to this subject, but the wording was especially confusing.

  • Hi maxd,

    Thank you for your valuable feedback. We would do the needful to make sure it gets implemented. You can also submit any ideas about our product or service at the below link:

    http://www.ideastorm.com/

    If you have any further queries, please feel free to contact us.

    Thanks and Regards
    Sandeep P
    #iworkfordell

    Thanks and Regards
    Sandeep P
    #iworkfordell

    To know more about Dell Product Support, Drivers & Downloads, Order & Dispatch status -> choose your region US Customers; UK Customers; India Customers. For Dell support videos click Here.

  • Hi Arseface,

    Its great to hear that your query has been answered to your satisfaction. I understand options were confusing and we truly appreciate your feedback.

    If you have any queries in future feel free to contacts us.

    Thanks and Regards
    Sandeep P
    #iworkfordell

    Thanks and Regards
    Sandeep P
    #iworkfordell

    To know more about Dell Product Support, Drivers & Downloads, Order & Dispatch status -> choose your region US Customers; UK Customers; India Customers. For Dell support videos click Here.

  • As this feed was about battery life etc I was just wondering if you may also be able to answer my query... My XPS12 only works when plugged into power.. it is 4 months old and was a b'day gift from my husband... It has not been used very much as  a lack of "know how' has prevented me from exploring further. So my question is. Is this a normal life span for this computer if so is it worth replacing or of not does this mean there is a warranty issue I need to pursue? thanks for any tips and advice

    Nic777

  • My XPS 12 works fine on battery power out of the box. Does the device automatically turn itself straight off when the power supply is removed? If so, I'd say you have a faulty battery. Would be worth talking to Dell about getting a replacement as you're still in warranty.

  • Yes as soon as the power is off it is dead... nothing...lights out!!

    Thank you for your reply. I think I will follow up with DELL tomorrow as it is just sitting around collecting dust and for a A$1800 computer I think I will get it up and going. I am not sure how or where my nearest DELL repairer is in Western Australia but will browse the website and see what I can come up with.

    Thanks again

  • I can't add anything other than what I mentioned in the following thread, four months ago. I'm buying, not selling.

    en.community.dell.com/.../19482972.aspx

  • Hi Nic777,

    I understand that you are facing an issue with the system that it not working on the battery. We truly regret the inconvenience that has been caused to you.

    Please check the link below which would help you resolve this issue:

    http://dell.to/11x7iiZ

    Kindly perform these steps and let us know, so we can advise you further.

    Thanks and Regards
    Sandeep P
    #iworkfordell

    Thanks and Regards
    Sandeep P
    #iworkfordell

    To know more about Dell Product Support, Drivers & Downloads, Order & Dispatch status -> choose your region US Customers; UK Customers; India Customers. For Dell support videos click Here.

  • "In Longevity mode battery would charge only above 88 percent. So if battery is below 88 percent it would not charge until and unless battery reaches 7 percent."

    This is false. I have longevity mode on, and my battery keeps charging even if it's below 88 percent. Why is it doing this?

  • Hello Buddy !

    Noted yr comments loud and clear and I am having one more query;

    Will it be wise to keep "DESKTOP MODE NATTERY CHARGE" on while "LONGIVITY MODE BATTERY CHARGE " is also on ?

    Thanking you in advance,

     

    K.Rgds/Judebd