I recently went on a fairly long ride from the San Francisco bay area to New York. I rode with a group of firefighters and military veterans both active and retired for the 20th anniversary of 911. We left Aug. 1st and arrived in New York 40 days later on Sept. 9th. There were only 3 rest days the entire trip. Being that I was the oldest by a large margin at 72, I bought a Creo Evo to help get me there without braking this old body. My goal was to try and average 50 miles a day and ride every other day. Our daily average was going to be close to 90 miles a day. I approached this ride realistically knowing my limitations.
When I crossed the Brooklyn Bridge on Sept. 9th, I had biked 2,310 miles. I rode 28 out of the 37 days which averaged out 82.5 miles a day. As for total elevation I haven't taken the time to figure that out yet. As for data on battery usage, forget about it, I didn't bother. After 8 hours in the saddle that was the last thing on my list of priorities.
I was the only rider on an ebike so I was taking a lot of crap but all in fun. Even though most of the time I was riding without assist and staying with the group. The road remotes made it very easy to get support with just a tap and turn off. I had purchased a range extender for the big climbs all of which were in the first two weeks. As it turned out I only carried it when we climbed the Teton Pass which was the longest steepest climb of the ride. We had about 20 miles with an average of about 10% with some 20% grades thrown to make you cry. The summit was about 8,500 ft. The total distance from Idaho Falls to Jackson Wyoming 91 miles with 6,000 ft. of elevation gain. I forget what I had left in the tank but remember thinking I could have made it easily without the RE. I never used the RE again for the entire trip. The following day was a rest day before going over the Continental Divide at 10,000 ft. but only 4,000 ft. of elevation gain in 90 miles. As difficult as these climbs were the hardest ride was from Pittsburgh to Shanksville PA or the Flight 93 Memorial. This was 108 miles with 8,300 ft. of elevation gain. It was brutal with many steep hills. I didn't think to take my RE extender since there were no long climbs. At the end I was in the red and was about ready to grab the RE from our chase vehicle when we finally arrived at our destination.
I will be 73 in exactly one month, I consider myself to be in pretty good shape for my age especially now. I am 5'9", 165 lbs. When I started training for this ride I weighed 183, and the day we left I weighed in at 172. When I arrived in New York I weighed 161.
Can 10,000 Ft. be made on one charge; sure but that depends on a lot of factors the main one would be ones own fitness. Personally I would take the RE and use the hell out of it and have fun. I did this ride to see how I compare with guys much younger then me so I pushed pretty hard. I even did two 80 plus mile rides on my Santa Cruz Stigmata as well 109 miles on the Creo without any assist just to prove a point to guys that were having fun with me about riding an ebike. After that I said screw it, I paid good money for this bike and I'm going to use it the way it was made to be used. I loved blowing past the strongest riders on the hills laughing.