You have a 460 AH battery bank, use that for "C".
Is this what you are looking for?
The standard for flooded cell lead acid batteries for discharge current use the 20 hour capacity number "C" of the batteries:C/20 hour discharge or 5% is a nice easy discharge and a good average discharge for 5 hours per night for 2 nights (10 hour discharge) and leaves 50% still in the battery bank.C/8 hour discharge or 12.5% (or 13%) is the maximum rated discharge suggested (for less than 4 hours to 50% discharge)C/5 hour discharge or 20% discharge is maximum short term discharge (minutes to an hour)--Tools, pumps, etc.C/2.5 hour discharge or 40% discharge rate is maximum for surge current, starting motors, etc. (seconds to minute).You have a 460 AH battery bank, use that for "C".Is this what you are looking for? -Bill
I am not an expert--And, of course, your wiring has to support such current too.