I have no business interest but found this adapter and kit to give my 2019 Model 3 and a CCS-1 adapter: There are YouTubes out there showing similar board and cable installations. My battery capacity as expected is down to ~48 from 55 kWh. This lets me use CCS-1 chargers (if operational) for a quick boost along a direct route. Given $15k for a 55 kWh battery replacement, it comes out that adding 7 kWh would cost $1,910. The operational scenario: Plan a normal 1.5-2.5 hr, direct, Supercharger-to-Supercharger segment - excellent reliability. Any Supercharger deviations adding miles - look for CCS-1 fast DC chargers along direct route. Add a "bridge the gap" charge at the earliest opportunity. If the CCS-1 charger is down, take the Supercharger diversion. Bob Wilson
