I think we finally have this figured out!

It appears that the UltraBee is using the J1939 CANbus protocol standard to communicate with the various bike components, including controller, battery and charger. I use the term "standard" loosely, because J1939 allows for "manufacturer specific" address space to define non-standard functions. Enter PGN 57344, also known as packaged data is used for data logging, telematics and communications, particularly between the battery pack and the vehicle. Details on this PGN are he

The first MX4 pack rebuild is undergoing testing and thermal characterization! It's been a lot of work, but these new nickel/copper...

First MX4 packs are starting to show up for rebuild so we're scrambling to get all of the design work done for the rebuild kits. Also,...