I think it's more likely that as they've changed the boards in the motor, they've made other changes at the same time on how things communicate and work together - possibly improving efficiency and communication protocols between battery management systems and the motor . So, they've changed the connectors so that only "compatible" items can be used with the "bes3" ? configuration. Presumably they looked at making things backwards compatible, but made the decision that it wouldn't work, therefore, use different connections to avoid issues down the line. They might also be improved connections which are more weatherproof for instance.Hold up, I'm confused!!
This new system allows the firmware to be updated over the air and the wiring has been reworked. Plus the release of a 750wh battery and the scope to allow the motor perameters to be adjusted via the app.
Doesn't it stand to reason that Bosch will eventually release a firmware update to increase the maximum current flow from the battery, thereby increasing the newton meters of torque?
We're still very much in a growing phase, you can't keep making things backwards compatible because the technological changes don't allow mowing forwards and legacy compatibility. Plus, the new controller obviously has star link satellite built into it ..