Driver wrote:Just removed my deffective 30kwh from my leaf and replaced with a 24kwh battery. So yeah a downgrade.
12 bars restored , only one small issue
Error code " p3102 invalid battery".
The battery needs pairing with the vehicle, unfortunately nearest dealership refused to do it because they not HV battery trained.
I have VCM from donor car so looking to replace that.
The vehicle drives in limited mode now. Once i take off the VCM will be immobilized...
So you could try the HV pairing tool from evsenhanced, however, that tool only is certified to work with like for like replacements. Nissan doesn't officially support replacing a 30 kWh battery with anything other than a 30 kWh battery and the tool hasn't been tested doing that. I have no idea if it would work for your situation.
http://evsenhanced.com/products/hv-batt ... ring-tool/
I can say the tool works well. I just used it to swap a 12 bar 24kWh battery into my 7 bar 2011.
I sounds like someone has already succeeded in changing battery capacity by swapping the VCM's as well as the battery. You could do that at the dealership, then have them program the keys, assuming they're willing to.