Hi everybody,
I'm completely new here, bought 2 scooters directly in China, and seem to have controller units from YuanLang inside:
http://en.njyuanlang.com/products_detail/&productId=da289ebe-f63a-4763-aee7-3faedd5d7723&comp_stats=comp-FrontProducts_list01-1278837448483.html
Which is OK, and...