Help me choose SCC

[Maitake]

My main array feeds an AC coupled/grid tie system with SMA inverters and a 48v battery. It turns out I have 2 extra panels in the array due to cold weather overvoltage limits.
I would like to add a SCC to utilize these 2 panels, and also assist If I get into a black start problem.

2 X 415W canadian solar bifacials.
VOC 45
VMP 36.7
ISC 13
Victron 150/35 looks like a contender, any other high quality options I should be considering?
Thinking I will set it to float at 3.45v, is this a good idea?

Using a REC bms to control the main chargers, not sure that makes any difference.
Thx

 

[sunshine_eggo]

My main array feeds an AC coupled/grid tie system with SMA inverters and a 48v battery. It turns out I have 2 extra panels in the array due to cold weather overvoltage limits.
I would like to add a SCC to utilize these 2 panels, and also assist If I get into a black start problem.

2 X 415W canadian solar bifacials.
VOC 45
VMP 36.7
ISC 13
Victron 150/35 looks like a contender, any other high quality options I should be considering?
Thinking I will set it to float at 3.45v, is this a good idea?

Using a REC bms to control the main chargers, not sure that makes any difference.
Thx

3.40/cell is more typical for float. If you need some extra balancing for your cells, 3.45.

 

[Maitake]

Victron does not have arc fault protection, so not an option....
With arc fault SCC's running $700-1k, might not be worth hooking these panels up.
Any other ideas?

 

[740GLE]

Does his local code care about arc fault?

With that said how large is the current array how much are you missing out by not including these two panels? I enjoy Victron stuff, and that unit would be great if you had a few more panels to toss at it to utilize its capacity.

Maybe keep these two panels as spares?