Cornishrooster
New Member
- Joined
- May 20, 2022
- Messages
- 3
Hello all, I'm not really a beginner but I'm a hobbyist a best - first post here. Bought a Hiker trailer a year ago that has a fixed 100w panel and a cheap charge controller that went to a 100 agm battery. The port for the portable solar panel was wired directly to the battery, no fuses or charge controller present. I upgraded the batteries to two battle born lifepo4 75ah units. I also replaced the renogy controller with a victron mppt scc on each panel like in the drawing below. Reran some wrong sized wires according the bluesea systems chart and then fused it all. Everything works great but my battery shunt readings are all over the place. Right now I have a dometic 55L fridge on and a maxxfan on low - the shunt shows the amp draw around 3 amps and the expected life was about 2 days and some change. Then I plugged in the portable panel and the shunt jumped to 10days estimated life and then went blank. All the functions still work just not the battery life estimate. Anyone have and ideas?
Just realized I forgot to draw the positive lead from the shunt to the battery.
Just realized I forgot to draw the positive lead from the shunt to the battery.