Well he bought this truck as a way to be green. No thought about his going into the mountains far away from a socket……lol well anyway off he went. Deep into the back country, for a weekend away. No issues going in, once in the camp ground he reports the truck had a 60 percent charge. They spent 3 days and two nights. The temp at night dropped into the low thirty’s. Sunday afternoon time to leave, battery reports 22 percent charge, truck is on limp mode. I hooked up a 30kw generator on a trailer and off I went. Spent half the day charging then home we came, he is selling the truck as he now realized it more a toy than a real truck.
Well, charging a 100+KWH battery with 30KW Genny would demand several hrs at LEAST.. Loll. That 30KW Genny likely powered with 40+ HP ice?
Charging that same 100+KWH battery in 1/2 hr would demand 200KW Genny! 1/4 hr demands 400KW! From Genny or grid...
Few folks really appreciate the scale of electric demand for charging BIG batts FAST. A typical 50A residential range or RV outlet can deliver 50A x 240V = 12KW. A typical 200A single phase residential service can deliver 200A x 240V = 48KW. Assuming unity power factor.
Diverting an entire residential home's 200A service capacity into charging a 100KWH battery demands 100KWH / 48KW = 2+ hrs. Or plugging into a 50A range or RV outlet demands 100KWH / 12KW = 8+ hrs. All assuming best case 100% efficiency charging, etc.
Charging that 100KWH battery from typical 15A wall outlet... 15A x 120v = 1.8KW. 100KWH / 1.8KW = 55+hrs.
These things represent significant gid capacity challenges. They are NOT cell phones! Lol
I'm wondering what field service SOP is? If you call Ford, or Tesla, or AAA, or? What's standard response? Do they attempt jump start with portable 400KW Genny? Just tow it? Or?
Really believe swappable batteries could permit service restoration in minutes. ?. Also allow more leisured charging at industrial zoned facilities? Handling equipment design pretty critical for batts that heavy, tho.