I’d like to see you test this, assuming you have another battery or a ride home. What bike is it on and what controller is giving you that info? I’ve had a 625 on order for over 7 months so I’m expecting better than that. That said, I’ll never ride 26 miles on Turbo mode. Did 30+ miles the other day (Off/Eco/Touring) with my PowerTube 500 and finished with probably 70+% left.