What is “excessive” regen braking and how will that damage the batteries?
The only danger to the batteries is overcharging. I asked Scott Cronk about this disturbing phrase in the owner’s manual and he said it applied to people who live, perhaps, at the top of a tall hill, and after having the Lectra charge in their garage all night, regen-brake all the way down this hill, turning the potential energy of the hill into electric energy.