Do wireless phone chargers have vampire drain (sucks power even when not being used)?

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In this video I tested Anker wireless phone charger for vampire drain. I am trying to proof if wireless charger + usb charging adapter has any power drain when it is not being used. And how much power is being consumed when it is being used.

I am using Kill-a-watt power meter to measure how much power is being used for this test.

If you would like to buy Kill-A-Watt, please use my link below:


If you would like to buy Anker wireless charging pad, please use my link below:


#wirelesscharging #anker #vampiredrain