"Unsettling failure rates"
FFS.
I've just returned to the hobby after a 25 year break, when i stopped driving, we'd see at least one or two cells pop every month, and that was just the club drivers. Any big competition you'd get that in a single day.
This time round (nearly 3 years at it) I know of two cells failing at our club and as far as I know both were being charged at higher rates.
The actually failure rate is incredibly low, I'd go so far as to say it's statistically insignificant. And a good number can be attributed to stupidity or misuse.
(Wasn't there a thread a few weeks ago about rapid charge/discharge/charge cycling to get the battery nice and warm before your event? That's stupidity, or misuse.)
On the other hand, the severity of a failure is higher.
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