SiO2 everywhere else suggests a maximum charging rate of C/4 or 25 amps per 100 amp-hours, with full charging being done once per month (or 1 in 30 cycles).
So I guess the lead crystal is a different beast?
I don't quite understand their math either.
For example:
CNFJ & CNFT Range 0.3C @C10 (or 30% of the C10 rate)
C10 on a 100 amp-hour battery, to me, would be 1000 amps.
X 0.3 = 300 amps.
But they then say that's only 30 amps?
Thirty amps would not be a hardship on a decent solar system with some bank switching. 300 is beyond the pale for sure.