Is It Still Drawing Power

Discussion in 'Motorhome Chat' started by daveandsan, Jan 24, 2014.

  1. daveandsan

    daveandsan Funster

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    Question for you technophobes out there. If a phone/ipad charger is plugged in and turned on but not attached to the item is it still drawing any current. :Smile:
     
  2. gozomike

    gozomike Funster Life Member Life Member

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    Yup, small amount but some.
     
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  3. Geordies

    Geordies Funster

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    Yes, small amount, but also cheap Chinese ones have been known to self combust ! Best unplug anything when it's not in use.
     
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  4. Don Quixote

    Don Quixote Funster

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    All items left on standby ( that is iphone/laptop/ipads ) chargers and even TV / Radio / Microwave ovens and computers draw power on standby. This may not seem much in the short term, however over a month or year can be a much as 150 quid in the average household ( don't quote me ). Standby on a TV is the worst and leaving chargers plugged in comes second followed by computers, which many people leave connected, but switched on!!!!

    It's all wasted money burning away........
     
  5. daveandsan

    daveandsan Funster

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    Yes I understand tvs etc use power on standby, it was just the chargers I was concerned about. :Smile:
     
  6. WillH

    WillH Funster

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    A modern TV should only cost around 16-20p/year if left on stand-by, phone chargers and the like use a miniscule amount, but nonetheless use some power. I am guilty of leaving my computer on all the time we are at home, cost, around £80/year.

    Rgds
    Bill
     
  7. Don Quixote

    Don Quixote Funster

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    The amount of electricity that a New/Modern television uses on standby is at least 3 watts per hour. Therefore, if it is on standby for 8 hours, the amount of electricity that will be consumed is 24 watts.
    Depending on how much you pay for electricity, it means that if you have 2 x TVs are left on standby then it would cost about £15-20 a year...........
     
  8. Don Quixote

    Don Quixote Funster

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    Standby power, also called vampire power, vampire draw, phantom load, or leaking electricity ("phantom load" and "leaking electricity" are defined technical terms with other meanings, adopted for this different purpose), refers to the electric power consumed by electronic and electrical appliances while they are switched off (but are designed to draw some power) or in a standby mode. This only occurs because some devices claimed to be "switched off" on the electronic interface, but are in a different state from switching off from the plug, or disconnecting from the plug, which can solve the problem of standby power completely. In fact, switching off at the plug is effective enough, there is no need to disconnect all devices from the plug. Some such devices offer remote controls and digital clock features to the user, while other devices, such as power adapters for disconnected electronic devices, consume power without offering any features (sometimes called no-load power). All of the above examples, such as the remote control, digital clock functions and, in the case of adapters, no-load power, are switched off just by switching off at the plug. However, for some devices with built-in internal battery, such as the phone, the standby functions can be stopped by removing the battery instead.

    In the past standby power was largely a non-issue for users, electricity providers, manufacturers, and government regulators. In the first decade of the twenty-first century awareness of the issue grew and it became an important consideration for all parties. Up to the middle of the decade, standby power was often several watts or even tens of watts per appliance. [HI]By 2010 regulations were in place in most developed countries restricting standby power of devices sold to one watt [/HI](and half that from 2013). How many people have bought a TV new in 2013 and checked the watts in standby!!!!!!!!
     
  9. WillH

    WillH Funster

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    Just checked, my TV uses 0.3 watts on stand-by, I'm home 240 days a year.
     
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  10. The Wino

    The Wino Funster

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    You can tell the chargers use power if you unplug them they are usually warm even if not charging an i-pod /phone at the time the heat comes from somewhere

    David
     
  11. callumwa

    callumwa Read Only Funster

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    Overnight we normally leave about 4 computers on standby (sleep mode), 2 TV's and 2 Sky boxes, there is also a low power night light on in the little lads room and a night light on the landing.

    Our overnight consumption in this condition is just under 2p an hour, based on 8 hours a night that works out about £58 a year, assuming that is the same every night, which it is not as we are away a lot and everything is then shut down.

    However we also have 2 fridges and 2 freezers running 24/7, the boiler for heating and water when required, internet router, and a couple of electronic digital clock. They probably account for much more than half of the overnight consumption so our standby devices cost us a lot less than 1p an hour, so just a few P a night....:thumb:
     
  12. jhorsf

    jhorsf Read Only Funster

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    Perhaps our firemen members would know but I am sure I read somewhere that chargers were a large cause of house fires
     
  13. peterc10

    peterc10 Funster

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    Not sure about those figures. Firstly my 3 year old 40" Sony LCD TV draws 0.19W on standby,according to the manual. And secondly 2TVs x 3W x 8hrs x 365days = 17,520Wh = 17.5KWh. By my reckoning that will cost about £2.40 at the rate I pay EDF for electricity.
     
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  14. callumwa

    callumwa Read Only Funster

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    Agree...

    From the manual of my Samsung TV...

    SAMSUNG UE40F6500 40 inch 3D LED Smart TV 1080p HD Freeview HD freesat HD

    http://www.samsung.com/uk/consumer/tv-audio-video/television/led-tv/UE40F6500SBXXU-spec

    Power Consumption on Standby = 0.1W/hr
     
    Last edited: Jan 25, 2014
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