@Dan Meier It may take repeated use, ride it down to empty, leave it on charger for 24hours, a few times to get them to balance.

@Dan Meier Hi Dan! Lithium Ion batteries do not go to 0V. ~42V would be empty. Just ride it close to 42V, then do a 24hr charge, and then back to 42V a few times and it will hopefully start to balance the cells

That’s sweet! Do you have the ring light wired separately from the main light?

@Jennie Loomis hahaha how did you fry it?

@Jason Strickland If you're looking for a wiring diagram for that particular model, I'd recommend checking the manufacturer's website, their official service manuals, or online forums dedicated to that brand or just a search with google. Just to clarify, our goal in this school is to empower you with the skills and knowledge to diagnose, repair, and handle e-bikes and scooters on your own. We're like a classroom where we teach the methods and best practices, but this still requires everyone to do their own "homework". That means we focus on general techniques rather than providing specific documents or diagrams from individual bike manufacturers (which we don't have access to, as we're not affiliated with those companies).

@Jason Strickland Unfortunately I don't know anything about a Skute, never heard of the brand before :)

Hi David! Great to have you. That is the whole purpose of this group to learn how to replace the parts and get it back up and running again so you don't need to hire an expensive shop. If you click on the "Courses" section it has guides for getting it back in good shape. 💪 -Jason

@Marc Itow I see the prowheel and the samox on the website here, we probably still have a few of the Lasco if you need that one let me know. https://ridescoozy.com/search.php?search_query=crank&button=&section=product

@Marc Itow This is exactly the kind of situation the Scoozy E-Bike Academy was built for. Our goal here is to provide the educational content you need to either troubleshoot the bike yourself or, if it’s a bigger job, give you the knowledge to tell a local bike shop exactly what needs to be done. While it is difficult for us (or anyone) to perfectly diagnose a mechanical issue over the internet without seeing the bike in person, the community is definitely here to point you in the right direction! To answer your specific question: You generally do not "tighten" the chain to fix this. If the chain feels loose in 1st gear (the largest cog) or is falling off, it is usually a matter of Derailleur Adjustment rather than the chain length itself, however, if the chain length is stretched from use it may need to be replaced, there are actual tools to measure chain wear! Otherwise, you could try adjusting your "B-Tension Screw" to pick up the slack. Good news: We are actually launching our detailed "Mechanical Systems" classroom modules this weekend! This will include a section specifically on Drivetrains and Derailleurs that will show you exactly which screws to turn to fix this. Keep an eye out for that update this weekend—it should give you the exact steps you need to get that 1st gear working smoothly again! -Jasono