UGT
New Member
I have 2 SOT 206ah lithium batteries for the basis of my solar system on my Ram Promaster van. I am in the process of purchasing the Rich Solar 400 watt kit that includes the 40 amp solar controller, two 200 watt solar panels, and the connecting wires (10 gauge) to the controller from the panels and from the controller to the battery bank 8 gauge wires. The kit is designed for series connection. The panels are 9.8 amps each. It has a 15 amp inline solar fuse on the hot from the panels to the controller. I want to connect my system up parallel. If I understand correctly then the total amperage would be double in parallel connection and would produce 19.6 amps on the hot wire to the controller from the panel. Would I not then need a larger inline fuse from the panel to the controller? I was reasoning that I would need a 25 amp inline solar fuse. Rich Solar only has fuses 15, 20 and 30 amp. No 25 amp. I can't seem to find a suitable inline solar fuse at that amperage. Is my thinking on the fuse size wrong? I would think that running this system in parallel would not be unusual rather a common setup. Can you help? thanks in advance. Yes, I am a newbie and this is my first solar adventure. My wife is skeerd I am gonna blow somethin' up. George in Austin