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b-rad g

macrumors 6502a
Jun 29, 2010
895
1
Haha...I usually charge my iPhone and MacBook Air at work! Of course I work at a power company and our cost for power is much less than the residential rate.
 

WestonHarvey1

macrumors 68030
Jan 9, 2007
2,773
2,191
Because this is what I worry about when I am dropping hundreds of dollars on a product...

Right, because owning something that costs hundreds of dollars means I wouldn't prefer my electricity costs be lower. I must be a crazy environmentalist if I like paying less for something.

I like paying more unnecessarily. It shows off how rich I am.
 

Asriel

macrumors newbie
Sep 27, 2012
24
0
What is the cost of leaving the charger plugged in when not charging?

I was wondering that, thinking that the power consumption used while charging would be dwarfed by the power used by always leaving the charger pugged in, but then I read this old page and found out that that was peanuts too.

Now how much money am I wasting by leaving my phone plugged in overnight when it only takes an hour to charge? :rolleyes:

Not much extra I guess, doesn't it cycle on and off to save the battery, or is that just the bigger devices?
 

mr.steevo

macrumors 65816
Jul 21, 2004
1,411
940
Why is this about iphones? Any smartphone would use that kind of energy.

Because if the report was regarding the energy use of the LG GW620R no one would be bothered to read it.

Know your audience.
 

slineaudi

macrumors regular
Oct 12, 2009
167
254
Really that cheap? I would have thought more than that a week. Im in the UK though, so im not sure how much a difference elec bills would be.

Currently pay around £1000 a year here.

Yeah, I was surprised it's that cheap as well.

Probably comparable rates. I pay about 8 cents USD per kWh before taxes and whatnot.
 

jnpy!$4g3cwk

macrumors 65816
Feb 11, 2010
1,119
1,302
I was wondering that, thinking that the power consumption used while charging would be dwarfed by the power used by always leaving the charger plugged in, but then I read this old page and found out that that was peanuts too.

Thanks! Great reference.
 

justperry

macrumors G5
Aug 10, 2007
12,558
9,750
I'm a rolling stone.
Extremely ... extremely minuscule. Hook it up to a Kill-A-Watt sometime. Basically, the electrical cost of a cellphone or a Macbook Air for an entire year is less than 1 visit to Starbucks. Now, x millions of cellphone users adds up but still... My 800 watt gaming computer makes me a terrible person. <cough>

Check out: http://standby.lbl.gov/summary-table.html

Looks like .26 watts? lawl

That's average, max. is 1 Watt

Does not seem like much but even .26 W adds up

.26 X 24 X 365 = 2277,6 Watts

100 million X 2277,6 = 228 GWatt

So, even 0.26 watt is a waste if 10s or 100s of millions of iPhones would leave their chargers plugged in.
 

ericrwalker

macrumors 68030
Oct 8, 2008
2,812
4
Albany, NY
Unless you use the airport charger, then it's $3 for 30 minutes.

317568546_2f7a33d47d.jpg
 

Asriel

macrumors newbie
Sep 27, 2012
24
0
Does not seem like much but even .26 W adds up

.26 X 24 X 365 = 2277,6 Watts

Up to this point it equals 26.8 cents by their reckoning, then wow, would you believe it, multiply anything by 100 million and you get a bit number.

This would be relevant if they were talking about the environment but the article is about cost.

If they had measured it in trees/drowning polar bears/bunnies with:(faces you're absolutely right.
 

citi

macrumors 65816
May 2, 2006
1,363
508
Simi Valley, CA
I can't get over the fact that it cost almost as much to power your xbox than your flat screen.

But that's also assuming running it all day won't kill it. :D

(I have an xbox - it's a joke)
 

baryon

macrumors 68040
Oct 3, 2009
3,878
2,929
It's quite shocking to think how much a set-top box consumes, more than a Desktop PC, while a set-top box does nothing other than a few limited tasks every once in a while when you decide to use it, as opposed to a PC that does everything you'd ever want to do.

It's not just the power consumption of useful high-tech devices we should worry about, but also about useless, badly designed devices that just suck energy non-stop to power their RAM because the manufacturer wasn't capable of spending more on actual permanent storage, or because the device constantly executes a loop of functions just to check if there is any input from the remote.

Oh, for those who say that we should be unplugging every electronic device when we don't use them (TV, set top box, washing machine, etc…), well give it a try yourself: first thing that will happen is that they will forget the time, the channels, they will take 10 minutes to boot up when you turn them back on, and if you turn them on in the wrong order they won't recognize each other (set top boxes in particular).
 
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