John in CR
100 TW
The other day I road my bike to the store, just like I do most days. It's almost a 5 mile round trip. When I left, the at rest pack voltage was 80.5v and when I returned home the at rest voltage was 80.7v, indicating that my pack had more energy than when I left. I've seen this on several occasions though not after that long a distance.
My cruising speed was my normal 35-40mph.
I did not charge the pack while I was out.
No, I didn't pedal at all. In fact, all propulsion was provided only by the measured batt pack on the bike via the my usual hub motor, which consumed its usual 200-250wh for the trip.
No, I don't have solar panels on my ebike, not yet anyway.
No connections were loose or any change made in the ebike, so the entire pack was connected for both measurements, and there was no change in configuration in the pack. I just got on, turned on the key, took off, and returned 30-40min later just like I always do. I just happened to notice the voltage being high when I got home, so I checked it again after a few minute rest.
The same multimeter took both measurements, so there wasn't some calibration difference.
No gale force winds blew me there and back. The day was near calm.
It was a round trip ride, so no net change in elevation, therefore regen braking isn't the cause. In fact, the max/min elevation difference over the route is less than 15m.
No, I didn't travel through a wormhole and get back before I left.
Anyone want to take a shot at the cause? I believe it's an effect we should all take into consideration with our ebikes.
John
BTW - I don't believe in over-unity, though that doesn't preclude the possibility of harnessing some as yet unknown energy or using a yet unknown method to capture known energy in the environment. I this case, I did neither. 8)
My cruising speed was my normal 35-40mph.
I did not charge the pack while I was out.
No, I didn't pedal at all. In fact, all propulsion was provided only by the measured batt pack on the bike via the my usual hub motor, which consumed its usual 200-250wh for the trip.
No, I don't have solar panels on my ebike, not yet anyway.
No connections were loose or any change made in the ebike, so the entire pack was connected for both measurements, and there was no change in configuration in the pack. I just got on, turned on the key, took off, and returned 30-40min later just like I always do. I just happened to notice the voltage being high when I got home, so I checked it again after a few minute rest.
The same multimeter took both measurements, so there wasn't some calibration difference.
No gale force winds blew me there and back. The day was near calm.
It was a round trip ride, so no net change in elevation, therefore regen braking isn't the cause. In fact, the max/min elevation difference over the route is less than 15m.
No, I didn't travel through a wormhole and get back before I left.
Anyone want to take a shot at the cause? I believe it's an effect we should all take into consideration with our ebikes.
John
BTW - I don't believe in over-unity, though that doesn't preclude the possibility of harnessing some as yet unknown energy or using a yet unknown method to capture known energy in the environment. I this case, I did neither. 8)