Sizing Bifacial PV Strings for Solar Charge Controller -- double confused here

[AlaskanNoob]

I'm trying to figure out how much PV (LG 440N2T-E6 panels) I can plug into a Victron 450/200 SCC.

From what I understand, the SCC has 4 trackers where PV can be plugged in. Each tracker is limited to accepting 450volt and 20 amps.

I know I can wire up 7 panels in series for a total voltage of 365V (using my temp correction of 1.23). I say I know that because the LG specs sheet lists VOC for STC, BIFI100, and BIFI200 as 48.9 so I'm using that as the VOC even though I have no idea what BIFI100 or BIFI200 are.

But it appears the ISC is 11.18 for STC, 11.94 for BIFI100, and 12.7 for BIFI200. Whichever of those numbers I use would mean I could not parallel any string of 7 panels because it would result in more than 20 amps.

So unless I'm doing this completely wrong (which is very likely) the 450/200 SCC could only accept 7 of these panels per tracker for a total of only 28 panels.

Can somebody educate me? I'm confused about BIFI100 and BIFI200 and I'm not sure if these specs are including the extra power production that comes from the panel taking in sun from both sides.

 

[AlaskanNoob]

I guess I'm going to have to get two of the 450/200 charge controllers anyway, since one of them can only put 200 amps/hr into the battery bank. The PV should generate about 400 amps of power and the battery bank can take 800 amp/hr. So it makes sense to get two of the 450/200s and just split the PV (all in series, nothing parallel) into the eight different trackers.