Hope this doesn't belong in the beginner section...
Want to upgrade my motorhome panel with the priority being on better performance in low-light conditions/longer charging hours. Thus I'm leaning towards a higher voltage panel, as well as obviously closer to my controller maximum input wattage. But curious if I'm thinking along the right lines as I'm new to solar systems.
Current 12 volt system: (2) 80ah AGM deep cycle batteries
Renogy Elite 20 amp MTTP controller (max solar voltage input: 100 VDC, max input power: 260 watts at 12v)
80-90ish watt panel, not sure of exact specs as this was all pre-installed when I recently bought the motorhome, but through some testing I'm seeing typical voltages, (up to 20v), and amps, (up to 3), coming from this wattage panel.
Panel options: Offgridtec 200 watt
VMP 40v
VOC 46.6v
IMP 5.05A
ISC 5.45A
or.... Viasolar 250 watt
VMP 20.2V
VOC 24.1V
IMP 12.37A
ISC 13.56A
Both will obviously increase overall performance in regard to charging time, but with a slightly higher priority on lower light conditions (longer charging hours as well as cloudy days) I'm thinking the 40V panel is the way to go with my current understanding of solar systems. How am I doing? Thanks for reading!
Want to upgrade my motorhome panel with the priority being on better performance in low-light conditions/longer charging hours. Thus I'm leaning towards a higher voltage panel, as well as obviously closer to my controller maximum input wattage. But curious if I'm thinking along the right lines as I'm new to solar systems.
Current 12 volt system: (2) 80ah AGM deep cycle batteries
Renogy Elite 20 amp MTTP controller (max solar voltage input: 100 VDC, max input power: 260 watts at 12v)
80-90ish watt panel, not sure of exact specs as this was all pre-installed when I recently bought the motorhome, but through some testing I'm seeing typical voltages, (up to 20v), and amps, (up to 3), coming from this wattage panel.
Panel options: Offgridtec 200 watt
VMP 40v
VOC 46.6v
IMP 5.05A
ISC 5.45A
or.... Viasolar 250 watt
VMP 20.2V
VOC 24.1V
IMP 12.37A
ISC 13.56A
Both will obviously increase overall performance in regard to charging time, but with a slightly higher priority on lower light conditions (longer charging hours as well as cloudy days) I'm thinking the 40V panel is the way to go with my current understanding of solar systems. How am I doing? Thanks for reading!