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If I have the cable always connected does it use more electricity?

L

levmc

macrumors 6502a
Original poster
Jan 18, 2019
687
25
If I don't feel like ever taking it off at home would it use a lot of electricity just being connected to the outlet and MBP?
 
if anything it should be less. Some energy is lost when a battery is charged, which is not lost if the computer is driven directly.
 
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