C10 = Capacity at a 10hr discharge rate, not 10 x C.
The 0.3C charge requirement would mean you need a ~30A charger per 100Ah battery, or ~600W of solar for every 100Ah battery. This essentially makes them impractical for RV use. Even the 0.2C rate makes using more than 100Ah of these impractical.
For reference Betta Batteries/Green Rhino/Soneil all appear to be the exact same Chinese batteries.
pianotuna wrote:
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.