duckduckohno t1_j7lzlau wrote
Reply to comment by boganknowsbest in So How Long Does It Take To Slow Charge a Hummer EV? (10 days) by hi9580
Kinda. 240V outlets are capable of 30, 40, 50 Amps depending on what wiring/breaker was used.
A standard 120V outlet is 15 Amps.
For safety, you never use the full output of an outlet (-20%).
We can figure out the wasttage (power) by multiplying Volts x Amps
So on a normal outlet you have 120V x 15A x 0.8 = 1.5 kW
His battery is 250 kWh so it would take 7 days to recharge at normal outlet speed.
A 240V outlet on a 50 Amp circuit is capable of (240V x 50A x 0.8 =) 9.5 kW and could recharge his car fully in a little over a day.
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