Battery issues aside, I'm kind of wondering if this hub motor has a brake, and if it does, will it be enough for this bike? I've been reading around and (forgive my ignorance on the subject, i'm new to hub motors) I can't tell for sure that if the motor is in an unpowered state it acts as a brake. Unfortunately, the cruise I was planning on using doesn't have brake bosses (it's using a coaster brake right now.) I could probably swap out the fork if I have to , but only if that's necessary.

Thanks for all the responses so far, it's definitely helping the process along...