I don't know if I can directly link my blog here, anyway I posted in it some very long and detailed articles about the e-tech engine and its "parent", the Renault Locodiscobox.
You can access my blog attaching my nickname to wordpress.com to get the address, or click the link in my profile: https://www.captur-forum.de/user/4237-jumpjack/#about
But if moderators are fine with it, I can post the link.