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(In)Accuracy of a Kill-A-Watt for measuring low power usage
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Mine shows powers as low as 3W. I have a Roomba that used 28W when charging and it drops to 3W when done. I also checked with a MAHA battery charger, which takes about 10W when charging 4 AA cells at 1000 mA (each cell needs 1.5W and with power loss in electronics, etc) that makes sense and it drops to 0 or 1 W when done.

This is good enough for me for a $20 device.

Just a few days ago I measured the power consumption of my subwoofer when sound is off and it is about 11W, so I have now I power strip with Master and Slave outlets that I plan to setup this weekend to cut off power to subwoofer when Receiver is OFF.
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Re: (In)Accuracy of a Kill-A-Watt for measuring low power usage - by space-time - 02-15-2018, 10:34 PM

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