I hope this isn't out of place here, but the thread does seem directed at and for the legacy Rav4EV owners.
Until recently, we had a pair of these pioneering vehicles, purchased used at pre-EV-world-dominance market prices, about half retail. With the plethora of production EVs now available, the market price has certainly fallen. It makes the vehicles no less valuable to the owners, in my opinion.
I'm hopeful the new owners of our legacy models will enjoy them as much as I did.
More to the point, one of the tools we had to keep our enjoyment level as high as it was is the factory-grade OBDII scan tool with the Rav4EV specific personality module. Too many functions and features for me to fully understand and use, but the most valuable by far is the ability to read and reset error codes.
Another feature of importance is the ability to read impedance values of the battery pack.
The various resources on the 'net for the legacy models have noted a few other settings and features I've not used with the tool, including the ability to turn on the pack fans in manual mode. This was a method involving reducing pack voltage gently to the point where all batteries were as low as possible, allowing for a bottom-balancing to be performed with more accuracy than other methods.
I still have the tool in hand, including all cables and a spare NiCd battery pack. The individual AA cells in the packs are user replaceable, which is good, as they die from lack of use, as the tool is generally powered by the OBDII and it was a waste of money for me to purchase new a dozen cells when I first bought the device (used) many years ago.
Even though the major traffic here is more-or-less founded in Australia, I would be willing to sell to the land down under with shipping charges added, which I understand is somewhat pricey.
Eventually, I'll post it on eBay, but for now, it's going to sell at US$850 plus shipping, check or money order. Paypal wants too much extortion for its cut.