This has been pretty educational, but I see a problem.
While I personally wouldn't use the IOTA and IQ4 as my "desktop charger", preferring lower voltages, the IOTA's are frequently used with generators.
So the objective is to get charged as fast as you can so you don't waste fuel in a long tail-current absorb. Ie, someone using a 35A DLS with an 800ah LFP bank. Run the genny in the most efficient way possible, and spend little time in absorb - albeit LFP is still pretty fast. So I think I see why they chose the trigger of 14.6v CV, and the timer.
So higher voltage, but limited time. If your Miady bank can't handle it, well that brings up the question of trying to design around grade-b cells and grade-b BMS. Hard problem.
I can say this - for my non-critical Talentcell LFP batteries, if I throw a NOCO lithium charger which takes it all the way up to 14.6v, I have no problem. Perhaps the cells are decent, or the bleeders have done their job. Not that I want to take them up to 14.6v every time - which I don't. I do know that when I do, I don't spend much TIME doing so as compared to using lower voltages. Yes, the differences can be considered minor as a one-off, but if I were to keep a log of time over the years, the lower voltages would actually spend more time above the knee.
So perhaps these IOTA specs are designed more with generator / alternator use and limiting fuel-burning in mind?
While I personally wouldn't use the IOTA and IQ4 as my "desktop charger", preferring lower voltages, the IOTA's are frequently used with generators.
So the objective is to get charged as fast as you can so you don't waste fuel in a long tail-current absorb. Ie, someone using a 35A DLS with an 800ah LFP bank. Run the genny in the most efficient way possible, and spend little time in absorb - albeit LFP is still pretty fast. So I think I see why they chose the trigger of 14.6v CV, and the timer.
So higher voltage, but limited time. If your Miady bank can't handle it, well that brings up the question of trying to design around grade-b cells and grade-b BMS. Hard problem.
I can say this - for my non-critical Talentcell LFP batteries, if I throw a NOCO lithium charger which takes it all the way up to 14.6v, I have no problem. Perhaps the cells are decent, or the bleeders have done their job. Not that I want to take them up to 14.6v every time - which I don't. I do know that when I do, I don't spend much TIME doing so as compared to using lower voltages. Yes, the differences can be considered minor as a one-off, but if I were to keep a log of time over the years, the lower voltages would actually spend more time above the knee.
So perhaps these IOTA specs are designed more with generator / alternator use and limiting fuel-burning in mind?