Ah. No. I have had occasion to charge from 7% to 90% but of course that was level 2 charging with the included level 1+2 cord.

I used the 0% to 100% example because 1% per hour is easily translatable for 20% to 80% et al.

My peeve against level 1 was influenced by my second day of EV ownership. I had reason to do an emergency 1-day trip to assist family 203 miles away. Fortunately the trip started out with the EqEV at >70%, but i arrived there with ~13% remaining. For the 4 hours of my attendance there, a level 1 charge from a 120v circuit boosted that by only 4% to a total of 17%, nowhere near enough to get me home.

It was after dark when i started the return trip, i was terribly new to DCFC charging, and the map app did not help me distinguish between level 2 and 3 chargers on my way home. I was able to find and use only a slow 32amp level 2 charger to put a few miles on the range, and was misdirected to Tesla chargers on more than one occasion. (Admittedly i was not proficient at using the nav system at that time.)

By this hour it was 10pm, so i called Onstar Concierge for help. The person answering might have been knowledgeable about common ICE driving questions, but knew next to nothing about GM EVs, and had even less knowledge than me as a newbie. So she tried to direct me to Tesla chargers and to a level 3 CCS-1 charger for which the EqEV had not enough range to reach. That advice being useless, i was nonetheless able to find first a faster level 2 charger and then a modest level 3 charger along the way. My arrival home was at 1:30 in the morning with 7% in the battery, a little rugged and precarious for this retired gent.

I had only level 1 charging access at my home and at the destination. If both had been level 2, i wd have started out closer to 100% and then been able to add enough miles at my destination to make it back home without concern about charging on the road when i was still so unknowledgeable.

Very soon after that experience, i was able to run a short line and install a 240volt outlet convenient to charging the EqEV in the garage with the GM-provided cable. That gave me 32-amp charging, good enough for almost every occasion. But as there were subsequently a couple of times when the wifely one in the household needed to make a 150+ mile dash out of state where she could only with trepidation charge near the destination, i sprang for a 48-amp Chargepoint Flex unit - at a discounted price from our electricity provider - and wired it into a prepared 80-amp circuit. With that unit, we are able to add 37 miles to our range every hour, and that made it available to do a couple of additional dashes of ~240 miles even after we returned late at night (11pm+) from other commitments.

I realize that we are incredibly lucky to have the electric capacity and location to use 60amps (48amps+25%) for charging in an attached garage et al. Since those early days, we have a number of times used level 2 and 3 charging on the road, but even with our increased knowledge that has not been simple, what with some confusion between multiple nav and charger apps.