We had the same problem with
We had the same problem with our 2011 Leaf. Battery started going bad on day one, by the time we had 11,000 miles we were looking at a replacement pack for $6800. Same as you we saved a few bucks on fuel and oil changes but lost way more than that on getting the docking station installed in our garage. Took $14,000 in deprecation to drive 11,000 miles. All I can say is "Thank you Nissan for making those under designed batteries".