i applaud your desire to teach about ebikes.
i worry about what you are teaching them
it sounds like you have built a bike that does not meet legal requirements. your bike surely must go faster than 20mph. you dont need a 48v 20ah battery for this speed??
perhaps i am misunderstanding this.
the local bike shops where i live dont sell more than 250w motors for fear anything faster will be a liability.
even with your accident, the drivers lawyer would have a field day if your bike was not fully legal and even possesed the abilty to go faster than 20mph
you need to teach whats legL , not what can be built
take care
i worry about what you are teaching them
it sounds like you have built a bike that does not meet legal requirements. your bike surely must go faster than 20mph. you dont need a 48v 20ah battery for this speed??
perhaps i am misunderstanding this.
the local bike shops where i live dont sell more than 250w motors for fear anything faster will be a liability.
even with your accident, the drivers lawyer would have a field day if your bike was not fully legal and even possesed the abilty to go faster than 20mph
you need to teach whats legL , not what can be built
take care