Ok, I just did a full range charge on my Roadster.
When I brought my Roadster home immediately after getting the new battery installed is showed a 338 mile range on a full range charge.
It has now been two and a half years since the R80 battery pack was installed and I have put about 10,000 miles on the car since then.
The current full charge shows 329 miles.
That's a 9 mile drop in range or 2.6% degradation.
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