I have a 2015 E3 Metro, which I LOVE- BUT I have had intermittent battery charging issues. My dealer has swapped chargers, cables, batteries and the computer, but I still have issues with no clear pattern, The battery will charge on or off the bike for several days and then suddenly one day it will not charge. Has anyone had any issue with a 2015 model? Is there a problem with the 48V battery and the battery charger???? I am now returning my bike and my dealer is giving me a brand new 2015 E3 Metro bike- maybe my first one is a lemon??? No one else has purchased a 2015 model at my shop so I am hoping others out there can give me information. I really love this bike and there is no other out there that has all the attributes that this one does. I really need to be able tho trust that my battery will charge EVERY time I need it as I commute 36 miles a day and can't get to work and back on one battery charge no matter how much I pedal ( lots of wind and hills make it hard to pedal without any help after a days work!) thx Diane