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EnergyStar plugpacks

Discussion in 'Electronic Design' started by David L. Jones, Sep 18, 2007.

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  1. I just got a new Nokia mobile phone and it came with a switchmode
    mains charger plugpack as many of them do these days, but this one has
    an Energy Star label saying this adapter was energy star compliant for
    reduced consumption. This is the first time I've seen this on any
    plugpack, so I thought I'd test it out.

    I got 0.12W on my energy meter with no phone connected. Compare that
    with 0.55W for my old Nokia transformer plugpack, and 0.55W for a
    (presumably non-energy star compliant) Motorola switchmode plugpack.

    That's a big saving, especially when you multiply it by a few tens of
    millions of phones. Very nice indeed.

  2. Phil Allison

    Phil Allison Guest

    "David L. Jones"

    ** Bollocks - it is utterly SFA.

    ** Utter drivel.

    Wot a incorrigible wanker you are - Jones.

    ........ Phil
    Hash: SHA1

    At least spell your pointless insults correctly: "What an"
    - --
    Brendan Gillatt
    brendan {at} brendangillatt {dot} co {dot} uk
    PGP Key:
    Version: GnuPG v1.4.3 (MingW32)

    -----END PGP SIGNATURE-----
  4. Saturated fatty acid
    Surface forces apparatus
    Segmented Flow Analyzer
    Sales Force Automation
    Student/Farmworker Alliance
    Super Furry Animals
    Stochastic Frontier Analysis
    Scottish Football Association
  5. Franc Zabkar

    Franc Zabkar Guest

    My charger sits in the drawer until I need it. That's 0.00W when no
    phone is connected. Furthermore, my phone doesn't have any unnecessary
    energy wasting features such as cameras and the like.

    - Franc Zabkar
  6. Some Faulty Australian

    Service to my country? Been there, Done that, and I've got my DD214 to
    prove it.
    Member of DAV #85.

    Michael A. Terrell
    Central Florida
  7. Much easier to simply switch the power point off, but then of course
    the wife complains that it "looks messy" :->
    My new phone has more standby and talk battery life than my old phone
    monochrome Nokia, and it's got a 2MP camera, MP3 player and all the
    frills, and a ridiculously bright 2" screen. Amazing.
    But it's got like 3 different power saving and power down modes,
    haven't figured them all out yet, might have to RTFM to save some

  8. kreed

    kreed Guest

    Try finding a phone these days without a camera ;). Last time I
    looked at the local Telstra shop, (over a year ago) even the cheapest
    models all had cameras.

    Will have to face up to this in the new year, as my current CDMA will
    be useless, and will be forced to upgrade to a next G phone with all
    these fancy features. from what I hear, as a bonus, the coverage will
    be sub-standard outside major cities, but hey, look on the bright
    side, in addition to the cameras, MP3 Players, FM radio, etc etc we
    will also have fancy "must have" features like pay TV and "mobile
    internet at broadband speed " that I, and most people would never use,
    and wouldn't pay typically excessive access fees for. What happened to
    the people (surely a significant number) who just want a phone that
    they can use reliably ?
  9. Phil Allison

    Phil Allison Guest

    "Brendan Gillatt"

    ** **** off - autistic pedant fool.

    ......... Phil
  10. Phil Allison

    Phil Allison Guest

    "Winfield Hill"

    ** Wonder wot this insufferably pompous cretin imagines ASD stands for -
    eh ?

    ........ Phil
  11. Phil Allison

    Phil Allison Guest

    "David L. Jones"

    ** Wot a incorrigible wanker you are - Jones.

    ** Best stick the POS in that blender you were on about recently.

    Wot a incorrigible wanker you are - Jones.

    ........ Phil
  12. I'll be keeping my old anti-ROHS lead based solidly constructed phone
    for canyoning and other adventure stuff. I think it will survive being
    thrown down 10m waterfalls much better than the new one.


  13. ASD = Allison, Sorry Dipshit.

    Service to my country? Been there, Done that, and I've got my DD214 to
    prove it.
    Member of DAV #85.

    Michael A. Terrell
    Central Florida
  14. Phil Hobbs

    Phil Hobbs Guest

    Dave, you drank the Fresh-Ade about mobile phone chargers eating power.

    People in the developed world use something between 120 kWH/day (Europe)
    and 300 kWH/day (Canada or the US). If every one of them saved 0.43W
    continuously, 24/7, that would be an improvement of 12 WH/120 kWH or
    0.01%. And that's if _everyone_ had a mobile, and _everyone_ got a new
    charger. Not to mention the energy cost of manufacturing all those new

    Every little bit doesn't help.


    Phil Hobbs
  15. kreed

    kreed Guest

    I see your point about it making bugger all difference, and agree
    (there are much more effective ways for everyday people to save much
    more power) but I find it very hard to believe that every person (or
    household) - even in the US (home of all extravagance) could use
    120-300 kwh per day. This alone would equate to $18 - $45 a day (at
    15c per kwh) which I doubt is possible to sustain, or maybe this sort
    of financial drain is contributing to the US sub-prime meltdown ? ;)
  16. Phil Hobbs

    Phil Hobbs Guest

    That figure isn't just electricity, but includes gasoline (the biggest
    use for most of us), home heat, the inefficiency of electric plants, and
    the energy required to make and transport the stuff we use. I got the
    figure from David MacKay's (draft) book, "Sustainable energy--without
    the hot air",

    It'll be a pretty good book when it's done, and it has some excellent
    sections even at this stage.


    Phil Hobbs
  17. Chris Jones

    Chris Jones Guest

    This online book is quite interesting - it tries to put things like your
    charger into perspective.

  18. No I didn't.
    I just found it interesting from an engineering point of view that you
    can now get these low standby power adapters. Even if it saves a small
    sniff of power, I just though it was elegant from an engineering point
    of view, a NICE thing to do.
    I know.
    I wasn't implying that it would help save the world or anything, and
    I'm not saying everyone should rush out and buy one because it's going
    to save them power, but it's certainly not a BAD step forward for the
    You can fiddle with numbers and their relevance in the global scheme
    of things all you like, but 0.1W will always be better than 0.5W.

  19. Phil Allison

    Phil Allison Guest

    "David L. Jones"
    Phil Hobbs

    ** So the cretin is still unaware we are being FORCED to use such adaptors
    for all applications - whether they are safe or suitable or not.

    ** What the " industry" making AC power adaptors is being FORCED to do
    IS a bad thing.

    The ban on the sale of iron transformer adaptors begins in April next year.


    ........ Phil
  20. Of course I am aware of that Phil. My posts have had nothing to do
    with that at all.
    Of course *that* is a bad thing, but my posts had nothing to do with
    that at all.

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