MPPT Controller Selection
Seems like a good time to post this question, on the heels of Mex's post about the import market... I need a 60a MPPT controller. Debating between the Morningstar Tristar 60, or the MidNite Solar ...
Forum Discussion
Tristar really does not explain how they terminate to float. The language is "The transition to float is based on the previous 24 hour history. Factors include the battery voltage, the state of charge the night before, the battery type, and the PWM duty cycle and stability of the duty cycle."
Tristar Manual
Is this the Tristar PWM controller manual? Even so, the voltage settings should be programmable through the computer interface and the MSview software. My little NPPT-15 controller has fully programmable setpoints and durations through the computer interface.
FWIW, when in storage my MS MPPT-15 controller is set and programmed to charge two banks of batteries. One bank is 2 x 6V GC2 batteries and the other is 3 X 12V AGM batteries. The two banks are paralleled at a 12V distribution panel. I have the temperature sense wire connected to the 6V bank.
The solar hardware combined with the software does a better job of charging than I can do it manually with a few 120V chargers available. I have confirmed this with periodic hydrometer measurements.
