Forum Discussion
BFL13
Jun 06, 2021Explorer II
With no controller, voltage to the battery will go up and up, which means the BMS should cut off charging at its high limit. Possibly risky for LFPs, don't know much about that. Ihe higher voltage won't change the amps if the amps are at Isc
If the Isc at the panel was 4 amps, then that's what you can get with that sky. You might have less light than it "looks" and just have to wait for better sunlight conditions.
If the pigtails are in a connection box on the back of the panel, their connections can be checked. Some panels have their pigtails coming out you can't get at where they come from. The panel could also be dirty or shaded, but you will know that.
If the Isc at the panel was 4 amps, then that's what you can get with that sky. You might have less light than it "looks" and just have to wait for better sunlight conditions.
If the pigtails are in a connection box on the back of the panel, their connections can be checked. Some panels have their pigtails coming out you can't get at where they come from. The panel could also be dirty or shaded, but you will know that.
About Technical Issues
Having RV issues? Connect with others who have been in your shoes.24,240 PostsLatest Activity: Apr 26, 2025