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Author Topic: Power comsuption  (Read 1786 times)
kervador
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« on: March 11, 2010, 09:07:32 AM »
Hello,

I would like to know how much power use a sheevaplug ?
How many Watts per hour ?

Thanks
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Trune
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« Reply #1 on: March 11, 2010, 10:46:35 AM »
my plug shows 9watts per hour on my reader.

but ive seen other people report 5watts.
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birdman
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« Reply #2 on: March 11, 2010, 01:14:01 PM »
Quote from: Trune on March 11, 2010, 10:46:35 AM
my plug shows 9watts per hour on my reader.
Since "watts" is a rate of usage of energy there is not such concept as "9watts per hour".
9 watts is 9 joules/s.  So 32.4kJ/hr.
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knireis
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« Reply #3 on: March 12, 2010, 07:42:23 AM »
mine takes 4-5 when booting from the SD-card. When idling it uses 3 watt. I don't use the usb port.
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chunkyks
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« Reply #4 on: March 12, 2010, 03:56:28 PM »
I sampled how much power my plug drinks in various states after I replaced the PSU. The results are at the bottom here:
http://icculus.org/obdgpslogger/sheevap5v/

The short version is "while powering a small USB hub, and with two USB devices, it draws about 6W from the outside."

Gary (-;
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dattaway
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« Reply #5 on: March 12, 2010, 03:58:50 PM »
Quote from: birdman on March 11, 2010, 01:14:01 PM
Quote from: Trune on March 11, 2010, 10:46:35 AM
my plug shows 9watts per hour on my reader.
Since "watts" is a rate of usage of energy there is not such concept as "9watts per hour".
9 watts is 9 joules/s.  So 32.4kJ/hr.

9 watt-hours! Or 0.009 kilowatt-hours!
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Trune
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« Reply #6 on: March 13, 2010, 07:06:39 AM »
Quote from: dattaway on March 12, 2010, 03:58:50 PM
Quote from: birdman on March 11, 2010, 01:14:01 PM
Quote from: Trune on March 11, 2010, 10:46:35 AM
my plug shows 9watts per hour on my reader.
Since "watts" is a rate of usage of energy there is not such concept as "9watts per hour".
9 watts is 9 joules/s.  So 32.4kJ/hr.

9 watt-hours! Or 0.009 kilowatt-hours!

Yep, so there Tongue
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birdman
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« Reply #7 on: March 14, 2010, 10:06:55 AM »
Quote from: dattaway on March 12, 2010, 03:58:50 PM
9 watt-hours! Or 0.009 kilowatt-hours!
Which is the energy consumed by running at 9 W for 1 hour.  It is not a power measure.  The power measure in this case would be 9W.
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Trune
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« Reply #8 on: March 14, 2010, 12:01:28 PM »
lol your just being pedantic,

the guy asked how many watts an hour it used. im sure he gets the idea.
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