Just got my ultra 1000 last week. Had issues with rear wheel rubbing. At just under 10 psi rear wheel clears chainstays. Started commuting with my bike. I've charged the battery a total of four times. Have to charge after every trip between home and work, which is not a problem. Yesterday I got to work with 17% left. Let the battery charge for 8 hours. When I put the battery back on the bike it said it had 36%. It always charges to 96 to 98% after 8 hours. I biked home on level 1 assist to preserve as much battery as possible for the duration of the twelve mile hilly ride. Battery stopped providing assistance about 5 miles from home. It said it had 7% left but it still would not power the motor. Plugged the battery into the charger once I got home but the charging light does not turn red on the power supply. Check the voltage coming out of the power supply with my multimeter. It reads 54 volts so I know the power supply is fine. Started chat support with biktrix. they are having me send the battery back to them and said they will send me a loner battery. Has anyone else had issues with batteries no longer charging? The battery has never been dropped. I always charge the battery before it was drained completely. I never charged the battery before letting it cool for an hour after a long ride. PS riding the Juggernaut without any assistance with 8 PSI in the tires was quite the workout. I hope I don't have to do that too frequently. Thoughts?