I am of the opinion that we just swap the entirety of the battery pack / inverter unit.
That way, we've only got things like current, voltage, and position sensor data to worry about.
Also the prices of just a used inverter is outrageous. Could buy a battery pack / PCU unit entirely instead.
They both are listed for around $500 USD. Not sure if this includes the inverter on the battery packs.
Examples: 2018-2020 HONDA ACCORD Battery hybrid battery OEM | eBay
& 06-08 HONDA CIVIC HYBRID INVERTER IMA COMPUTER BATTERY CHARGER OEM DC DC | eBay
Prices seem to be all over the place. Guessing it depends on how much life is left on battery.
I spent most of today researching inverters for different Honda models and it seems there are two types: Mitsubishi and Keihin. I believe the use of Mitsubishi is part of their ongoing partnership with GM for electrification?
Ours seems to be Keihin. I think a good place to start is any of the newer models that use this same manufacturer.
I wasn't able to really verify this so disregard.
Seems a good way to find the voltages of the battery packs is this sticker I see on almost all Honda packs.
This is for a 2018 Accord Hybrid:
And this is for a 2014 Accord Hybrid:
Here in the states we have the Acura RLX which appears to also be a 260V battery.
Usually they get the more powerful drivetrains.
The CR-V appears to be a 260V battery as well.