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A comment on Charging cars at home at night is not the way to go: study. Parent comment

Re:Charging cars at home at night is not the way to go: study by Scoundreller on Friday September 23, 2022 @04:00PM (#32956375)
Nice. I’ve also wanted my phone to tread water and not add charge while I’m driving.

Dumb dumb to use a gasoline engine’s generator to charge it, but I don’t want it to go dead either.

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Re:Charging cars at home at night is not the way to go: study by midasuni on Friday September 23, 2022 @05:00PM (#32956995)
The iPhone 13 pro max has a battery about 17Wh.

A typical car uses 330 Wh per mile.

Charging your phone from flat will cost you about 90 yards in range. At the most expensive electricity on the planet of about 70c per kWh it will cost you about 1c.

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Re:Charging cars at home at night is not the way to go: study by Symbiote on Friday September 23, 2022 @08:22PM (#32958637)
For what it's worth, and since this thread started with Denmark, the hourly price I was paying for an hour earlier this evening was 7.71DKK = 0.93USD.

A few days ago the price was almost zero (plus tax) for several windy hours.

https://andelenergi.dk/kundeservice/aftaler-og-priser/timepr... (add 1.59DKK for the taxes.)

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Re:Charging cars at home at night is not the way to go: study by Retric on Friday September 23, 2022 @08:02PM (#32958507)
Engine > alternator > rectifier > wireless charger > battery isn’t particularly efficient so you could be looking at closer to 2c/charge depending on setup and gas prices. Still trivial compared to an iPhone.
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Re:Charging cars at home at night is not the way to go: study by midasuni on Saturday September 24, 2022 @03:58AM (#32960582)
An iPhone probably last about 1000 charges (once a day for 3 years), so even 5c/charge would be $50, less than 5% of the total cost.
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Re:Charging cars at home at night is not the way to go: study by Retric on Saturday September 24, 2022 @07:24AM (#32961508)
Sure, though it is well worth it to replace the battery on an old iPhone.
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Re:Charging cars at home at night is not the way to go: study by Scoundreller on Friday September 23, 2022 @05:18PM (#32957193)
That’s probably what electricity costs in gasoline from a car’s alternator. I’d like to keep that 1c tyvm.
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Re:Charging cars at home at night is not the way to go: study by neuralRiot on Friday September 23, 2022 @04:42PM (#32956825)
Your car probably wastes more power heating all the wires on it than charging your phone.
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