OK the more recent ones seem to be fitted with standard BBs and have rack or frame batteries when I looked a couple of weeks ago. I can ask about parts if you want but will need at least a photo of the bike so I can show it to them.
Sorry can't do a photo until I go out there which is the 10th March.
It's held up well considering it was only €500 about 5 years ago and is used every day for 6 months a year but the bottom bracket axel really was poor quality!