I find that many problems are solved simply by disconnecting the 12v , waiting a minute and reconnecting. Rebooting should always be the first solution. I've done it plenty of times, it doesn't damage anything Probably the reason why replacing 12v batteries seems to fix everything. I now carry...
I was having similar issues with my 2020 Leaf Plus. I would get in the car and dash etc. wouldn't lite up. Usually a quick jump would get things going. I would hear a contactor or fuse click. Something like a battery low voltage safety cutoff of sorts.
Anyway I invested in a NOCO Genius 1...
This may be more than what you need. I still get 212+ range on the GOM. SoCal HWY speeds 70+ for commuting.
Check the notes section for changes.
2020 Nissan Leaf SV PLUS - Battery Degradation and AmpHours Remaining in 62kWh Pack
Being a 62kWh pack... Wasn't this a custom swap? You might want to check with the shop that did the swap to check that the modules are correctly looking for a 62kWh pack and not the original pack. I believe the swap requires custom software to be flashed from what I remember.
Nissan Leaf...
Same here. 2020 Leaf SV +
Drives fine, no issues. I thought I caused it by connecting an OpenEVSE I bought on ebay. I'm yet to get that to work properly, car threw some codes once when I connected it and did not want to power on. I connected the OEM EVSE and it corrected the problem. I'll...