mppt vs pwm
Hi, A nice little video comparing mppt vs pwm with the batteries in bulk mode. mppt vs pwm
Forum Discussion
BFL13 wrote:
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If you disable Absorb and can set your Float voltage to 14.8 as well, then it seems the Rogue would get to 14.8 in Bulk, then stay in MPPT doing Float at 14.8 till dark?
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Maybe just a language thing, but I don't think it "stays in MPPT doing FLOAT". Similarly it does not use MPPT to maintain the fixed 14.8V ABSORB voltage. Rather it does whatever it can to maintain a fixed voltage, which is quite different from MPPT mode as I understand it, where max Amps are what is wanted.
But by disabling both ABSORB *and* FLOAT, and using identical setpoints for the two, as I described before, you should be able to keep the controller in MPPT as long as the sun did shine.
Haven't tried that as I doubt the batteries would appreciate a full day sitting around 14.8V. We don't usually have high loads during the day to drag the battery V down; no inverter to speak of.
