Re:Casio F-91W: The strangely ubiquitous watch (2011)
by Mediterraneo10 on Monday November 23, 2020 @05:54AM
(#25185470)
Historically USB chargers have consumed power when connected to the wall socket, even when not connected to a phone. Some phones have even displayed an alert "Disconnect power supply from wall to save energy" when you unplugged the USB cable from the phone. Do modern USB-C chargers suffer from the same drawback and so shouldn’t be left plugged in all the time?
[ Parent
| on HN ]
Re:Casio F-91W: The strangely ubiquitous watch (2011)
by mfkp on Monday November 23, 2020 @05:57AM
(#25185490)
I'll have to plug in a power meter to check, but I'd assume the ghost power draw is negligible.
Re:Casio F-91W: The strangely ubiquitous watch (2011)
by high_priest on Monday November 23, 2020 @10:52AM
(#25188014)
It ends beings negligible, when you start to have 10 devices sipping 0.5-1W each.
Re:Casio F-91W: The strangely ubiquitous watch (2011)
by mfkp on Monday November 23, 2020 @01:41PM
(#25190043)
Doing some quick math in my head, even at 1w draw each, if they're constantly drawing that 24/7, it would end up costing about 80 cents per month (at $0.11/kWh). The cost of purchasing the chargers easily outweighs that. But I probably only have 5 around the house, so I have no problem spending 40 cents per month.