I wonder if there are any motorcycle electricians in the world? Most motorcycle mechanics don't like anything involving electrickery.
However, the charging system on a bike is relatively simple. Totally unlike automotive alternators, though.
If you have a multimeter, measure the battery voltage. Firstly after it's been standing, then after start and run at fast idle. Expect it to rise steadily to 14v. With or without lights.
One of the disadvantages of global trade and movement.
While it is bad news, forewarned is forearmed; and the more people that know about it and its potential conseuences (think $12 lettuces), the more pressure that can be put on government to put resources intol finding a way to solve the problem.
It only becomes depressing when no-one oof who we entrust and pay handsomely to look after this tries to do anything about it when they should.