Wanted to share an observation that caused me to switch from off-peak charging (middle of night) to charging immediately after parking. It's nearing winter in New England, so temps are dropping to 30-35 degrees F at night. When set to off-peak charging, with scheduled departure at 6:45am, charging starts between 2:30am and 3am. I typically have 20-30 miles of range to charge up, so maybe 6-8kW needed to charge up. If I charge immediately after parking during the day, I get 95-98% efficiency. If I let it wait until off-peak hours and charge in the iddle of the night, I get 50-55% efficiency. A lot of wasted power warming up the battery to get ready to charge off-peak.
Long story short, if you live in a colder climate, charging after a drive when the battery is already warm may be much more efficient. Highly recommend trying both and seeing what works better for you!
Long story short, if you live in a colder climate, charging after a drive when the battery is already warm may be much more efficient. Highly recommend trying both and seeing what works better for you!