To 12v batteries or 24v batteries, this is a question.

valhalla360 wrote:
What are you trying to achieve going to 24v?

My reason to jump to 48 volts would be for large wattage inverter use. 3000 watts is right on the edge of a cliff for a 12 volt dc input.

24 volts or (even better) 48 volts makes that much easier.

There is an excellent 48 volt dc air conditioner.

24 volts would save on the cost of the charge controller as many of them can do 24 volts--so they have twice the capacity at 24 than 12 volts.