The firmware packages you can download in this section have been developed by VECTRIX. 
Be cautious when updating. Do it at your own risk. The firmwares developed by VECTRIX correspond to their latest reviews for the different battery packs.

Look at the charger that your motorcycle has. There are two initial types of chargers. Gold charger, called EVPS or also RUNKE and silver colored charger, called ESD. The pack that must be installed on your motorcycle depends first on the type of charger and also the type of battery. Do not install firmware from a different version of the charger you have.