Battery voltage drop

[Camp Host]

The charger I am referring to is an external 20a battery charger... not a SCC.

 

[sunshine_eggo]

The charger I am referring to is an external 20a battery charger... not a SCC.

It's a long charge, but it's better than nothing.

 

[Camp Host]

I did some experimenting yesterday... (see file)
Your thoughts on the results, please.

 

[Camp Host]

20A * 14.5V = 290W, so you'll never get more than 290W out of the 400W array; however, you'll produce 290W for as long as a 400W array will produce 290W.

I would get at least a 30-40A controller

Consider the Victron 100/30... it's a workhorse.

I have a 40A controller... it's a 4210AN