Range for Extended/Remote Road Trips

azbill said:

I personally would not want to venture more than 100-150 miles from a charger. Also, if you are out four wheeling, you are likely to lose a lot of range, especially in sand or loose rocks. If you are just taking dirt roads, then not so much range lose.

I am sure some on this forum will propose taking solar with you for charging, but not very effective in my opinion. And if you are truly in the wilderness, probably a lot of trees or mountains and not great access to sunlight.

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You are exactly right, solar out in the woods is a not a great idea for the weekend warrior, although if going overnight and doing some 4 wheeling, I think 75 miles from a charger is more reasonable. Remember if you charge to 100% 350 miles of range it takes much longer on a DC charger than 80%, so 290 miles of range is more realistic in the real world unless you have an extra hour to wait to charge that last 20%. Of course we do not know the HummerEV charging curve yet, and GM might surprise us, but in light of the Bolt issues, I think GM will be very conservative on the DC charging curve over 50% SOC, and extremely slow over 80% SOC at least initially. They might build up more confidence as time goes on and update the firmware over the air, but I expect a Tesla like charging curve over 50% SOC initially, which is quite slow compared to cars like the E-Tron which go 150 kW all the way to 80%, and even at 98% are still pulling 50kW.

If I was going to spend more than a few days in the backwoods, I would bring a 9500W generator with me, at least the first few times until you figure out what is doable and what is not.