I used to ride to take long rides to Laguna, Hollywood, San Diego, Long Beach, Temecula... relying on the SOC to plan my ride. I used careful charging practices. Within a few years I started with these same problems within the warranty period. I documented this communication when getting maintenance. It is up to the point where it can happen in the 90% and I cannot hold CA Freeway speeds of 70-80mph.
(CyberCycle used to hit 113mph)
My work is nearby and I like to cruise around the city. My motorcycle is now an big electric bicycle now... Part of it is Battery temperature, but mostly it is a dangerous design defect. WOT the throttle and the Amps, bring down the battery Voltage significantly and triggers a BMS cutoff. Read Discussion Topic "Sudden drop in State of Charge" for further details.
Energy is there, I can still ride the bike a longer distances; Just at reduced speeds =/