MisterSandals
Participation Medalist
Solar Input 900W(10-145V):
RICH SOLAR 200 Watt 12 Volt Moncrystalline Solar Panel
- Maximum Power Voltage(Vmp): 20.4V
- Maximum Power Current(Imp): 9.80A
- Open Circuit Voltage(Voc): 24.3V
- Short Circuit Current(Isc): 10.2A
4 of these is series would be about 82Voc which works well staying under 145V.
MC4 connectors are pretty much the standard. I see in the comments that they don't work with some other MC4 connectors. They will likely work between the panels in your series connections. If you have problems mating with your AC200MAX (it has MC4 connectors?) you could easily put new/better connectors on the 2 wires on the end.
This isn't a very competitive price, craigslist is fairly easy to get big cheap panels for $.50 per watt. If you post a zip code, i can have a look or maybe recommend a source.