rillweed
New Member
Hi all
I have been trying to determine which size victron mppt to get for my system. I am getting 2xRich Solar mega 200W panels. Voc = 24.3V, Isc = 10.2A
Wiring these panels in series, both the faroutride calculator and the explorist.life calculator suggest that I can get away with a 100/30 MPPT. At first glance this seems wrong since 400W/12V=33A, but after some more reading it is because 12V batteries charge at ~14 volts. My epoch 460Ah suggests 13.8-13.9 max charge voltage and 13.4-13.5 float voltage. So, 400W/13.4=29.9A. Is this enough headroom to still use the 100/30 or is there anything else that I am missing?
I have been trying to determine which size victron mppt to get for my system. I am getting 2xRich Solar mega 200W panels. Voc = 24.3V, Isc = 10.2A
Wiring these panels in series, both the faroutride calculator and the explorist.life calculator suggest that I can get away with a 100/30 MPPT. At first glance this seems wrong since 400W/12V=33A, but after some more reading it is because 12V batteries charge at ~14 volts. My epoch 460Ah suggests 13.8-13.9 max charge voltage and 13.4-13.5 float voltage. So, 400W/13.4=29.9A. Is this enough headroom to still use the 100/30 or is there anything else that I am missing?