A big improvement is the thermal system that takes better care of the battery The bottom version Visia does not have it (stay away), but from the Acenta and Tekna has it. It preheats and cools the battery according to needs making the battery last longer.
From the video with EV Opinion: Nissan e NV200 | Test Drive & Review
0:45 "The basis of this is the Nissan Leaf, you see the same battery, the same motor
. And lots of stuff in and around the van that is a straight lift from the Nissan Leaf."- EV Opinion
https://youtu.be/hJz2djLz9SU
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Good Video showing the e-nv200 with range extended battery install.
