Quantcast Acer 3820TG i3 vs i5 versions - Battery Life

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  1. #1
    Notebook Deity
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    Default Acer 3820TG i3 vs i5 versions - Battery Life

    Hey all,

    I had a 3820TG i5-450M version which crapped out on me. I then grabbed the Canadian i3-370M.

    I've been wondering about the battery life, which seems much lower on the i3-370M version. According to Everest, the power drain on lowest brightness, wifi off, idle, power saver settings is about 14W, whereas previously it was only about 8W. All other components are the same.

    This means that the i3 version can idle at desktop for only about 5 hours on battery. Does anyone else have this issue?

  2. #2
    Notebook Virtuoso
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    Default Re: Acer 3820TG i3 vs i5 versions - Battery Life

    It's quite possible. Both CPUs make about 35W at full power. If the I5 needs to run at 2% on an idle machine, and the i3 needs to run at 4%, then it'll be pulling more power to do the same work.

    It's like that episode of top gear where they drove a prius around the test track at full throttle, followed by a BMW M5. The Prius got 17 MPG, the BMW something like 21.

  3. #3
    NBR Super Moderator
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    Default Re: Acer 3820TG i3 vs i5 versions - Battery Life

    Two off topic posts deleted. It's not a Top Gear message board so stick to notebooks. Thanks

  4. #4
    Notebook Evangelist
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    Default Re: Acer 3820TG i3 vs i5 versions - Battery Life

    My 4820TG (i3-350M + Intel HD) replying to this thread is currently drawing about 10W. Screen brightness at 30%.
    ApertureDevice1: Custom Desktop OS: Windows 7 Ult x64
    3.2GHz Phenom II X4 BE, 6GB RAM, 160GB X25-MG2, 1TB 7200RPM, 750GB 5400RPM, HD5850, BD-RE, 1080p SyncMaster
    Work Laptop: ThinkPad T420 OS: Windows 7 Pro x64
    2.6GHz Core i5, 8GB RAM, 2x 500GB 7200RPM, NVS4200M + HD3000

  5. #5
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    Default Re: Acer 3820TG i3 vs i5 versions - Battery Life

    Damn, mine is about 13W with same conditions and wireless...

 

 

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