Finally last week all needed parts came in so I could build on.

The case does get crowded.



How the front will look like



First test with a half charged battery



And with a full charged battery:



And here a movie with on the end how it shuts off when the voltage has reachred

https://youtu.be/xKiPhEZcbWw

One thing I have to change is connect the cooling fans directly to the 12v. Now they are switched with the load but when it shuts off the heat will rise a lot.