Do I understand correctly that the output percent adjustment changes the amount of time that the cell is actually powered, ala, pulse-width modulation at the respective percentage of on-time? Thus, if electric costs are ignored, would there be any difference to cell life between running for 4 hours per day at 100% vs 8 hours at 50%?
I see that the Autopilot systems have a 3-step current adjustment. If the daily chlorine output were equalized between the 3 current settings (i.e. low current-->more hours, high-current-->fewer hours on), does one mode lead to longer cell life than another?
And finally, how does a properly cleaned and cared for cell go bad at the end of it's life? Does the generated chlorine output slowly decline to the point that 24 hours of run time no longer produces the necessary CL2? Or is it typically a binary failure mode -- worked yesterday and now it doesn't?
For reference, I'm looking at the Auquarite w/ -15 cell, vs a Nano/Digital w/ -42(-48?) cell. I've already read many of PoolSeans pitches on the merits of the autopilot system, so I'm not looking to turn this into another one of those threads.