The Notebook Review forums were hosted by TechTarget, who shut down them down on January 31, 2022. This static read-only archive was pulled by NBR forum users between January 20 and January 31, 2022, in an effort to make sure that the valuable technical information that had been posted on the forums is preserved. For current discussions, many NBR forum users moved over to NotebookTalk.net after the shutdown.
Problems? See this thread at archive.org.

    Battery Replacement to Extend HP Envy 15 Life

    Discussion in 'HP' started by Zarotu, Dec 9, 2014.

  1. Zarotu

    Zarotu Newbie

    Reputations:
    0
    Messages:
    3
    Likes Received:
    0
    Trophy Points:
    5
    About a year and a few months ago, I bought an HP Envy 15. The main reason was that I was required to dorm for a year and needed a laptop to play some video games on. Because my parents do not enjoy the purchasing of technology online, we went ahead and bought this baby. Now that I am back at home with a recently built gaming desktop, I have decided to focus to laptop for academics. However, the battery life on this laptop is very poor, lasting for a couple of hours (if not less) on power saving mode. I was wondering if I could by a new battery to hopefully extend my laptop's life and allow me to last through the whole day without having to worry about battery life.

    The thing is, I am not really sure which battery to get, or if I should get one at all. I'm not totally sure about my model, but my product ID is E3S10UA#ABA.

    Thanks for your help!
     
    Zarotu, Dec 9, 2014
    #1
  2. vas

    vas Notebook Consultant

    Reputations:
    34
    Messages:
    207
    Likes Received:
    27
    Trophy Points:
    41
    Before consider replacing battery you should check what exactly "eat" your battery.
    To do so - just open "task manager" and check average CPU load within 1-2 minutes.
    In normal circumstances average CPU load is bellow 1%
    When playing music: 1..2% (can peak to 4%)
    Browsing internet e.t.c. can eat little more, but actually not much (only during page load/parsing)
    During these scenarios you can stay about 4h on battery.
    If your measurements significantly lower - consider replace your battery.

    If you going to use this laptop for gaming - consider plug in power supply.
    battery is not for gaming ... smoother playing experience drain more power.
    even little games can draw 100% CPU/GPU drawing 150 or even more FPS ...
    and eat your battery as fast as very heavy games running 15 FPS

    One good advice:
    To get some extra battery life (and make it cooler) use Intel XTU utility for undervolting purposes.
    You can easily undervolt your CPU by ~0.1 V (around from 1.1 V to 1.0 V)

    According heat generation formula: Q = I^2 * R, U = I * R, R - assume constant, and U is 10% less than before => I is 10% less too.
    => you'll get around: 0.9 ^ 2 = 0.81 power consumption. that means your CPU eat 19% less energy than before undervolting.
     
    vas, Dec 11, 2014
    #2