We are currently testing 48V-72V controller profiles that will allow you to seamless switch between different batteries such as 48V, 60V, and 72V without the need to send back your controller for re-programming. Testing is nearly completed with very favorable results.
Be aware that while using the 48V-72V will allow for the convenience of being able to switch between different battery packs with different voltages, you forfeit battery protection features for low and high voltage cut-offs, and thus E.R.T. Is not liable for any damage to your battery as a result of this. However, this is unlikely if your battery has a BMS (Battery Management System)
We would begin implementing this on the first week of October.
Bafang BBSHD and BBS02 kits ASI BAC kits will be the first to receive this Controller profile, then shortly followed by CYC and others.
BBSHD BAC800 kit has been tweaked, and the motor is able to rev to 11,000RPM on 52V. Stayed tuned for more updates.