I have a Europa electric bike that has served well for 6-7 years. Its battery has finally given up as far as I can tell. This bike appears to have been made by A2B bikes. Does anyone know how I can get a new battery? I am not super technically competent and am not sure I can safely rebuild the LiPo battery! Any help would be so much appreciated, I can't bear to send the Europa to the junk yard!