Best cheep way to convert 24 vdc solar/battery system to power 12 vdc 5000w inverter cant seem to find a dc to dc converter for 100 amps. And cant get multiple small converters to work. Or mite it be better to put panles and batteries in series to some higher voltage and then convert it.
1. that would be to high for a 12v charger/control
2. That would mean buying a mppt charge controler
3. Yes 4/0 with 54 batteries to supply the power if needed
The most the system draws is about 1000w so I'm only looking for 100 amp solution.
Why can't you get multiple small converters to work? You should be able to use multiple small input-regulated (or MPPT; or load-sharing) converters to work just fine.
Generally speaking, you can connect things in parallel that have the same voltage. You can connect things in series that have the same current. Power is irrelevant.