this post was submitted on 26 May 2026
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1.5 kw per hour, or 30kw overnight. That's about half charge of most battery packs.
Sigh... I'm going to have to be a unit nazi.
Power is the rate of energy transfer and is in kW. If 1kW flows for 1 hour it's 1 kWh (power x time). A US 120V socket at 12 Amps is just under 1.5kW. A 240V socket will be double that.
1.5kW for 12 hours is 18kWh. That's not half a battery, as most cars start at 60kWh batteries now. 18kWh will get 54-72 miles depending on the consumption of the car.
That's some Alaska winter night with 20 hours!