Recomended MPPT input voltage for a 48 volt system
Typical recommended MPPT nominal voltage input for a given system is double the battery bank voltage. I am contemplating switching my system over to 48 volts from 24 volts. I have 72 cell panels series wired 3s x 3p, Midnite classic 200. I am curious as to how the approx. 130 voc. , 105 vmp. will work into a 48 volt bank, this being 1 1/2 times the nominal voltage, not double. At the present time this 3s x 3p configuration is charging my 24 volt bank and being 3 times nominal it creates more heat than I am comfortable with, especially in the warm Baja climate.
2.1 Kw Suntech 175 mono, Classic 200, Trace SW 4024 ( 15 years old but brand new out of sealed factory box Jan. 2015), Bogart Tri-metric, 700 ah @24 volt AGM battery bank. Plenty of Baja Sea of Cortez sunshine.