5.9 12v seems to need less maitenance!!
Barely, 24v or36v in series is better
No
No
No
If you want to convert 24v AC into 12v Ac, it's simple. Just get a transformer to convert 24 volts into 12 volts. This is called a stepdown transformer. If you want to convert 24v DC into 12v DC, it's more complicated. First you have to change the 24v DC into 24v AC by a switching converter that changes DC into AC. Then you would use a stepdown transformer as in the former example. Once the 24v AC is converted to 12v AC, then you use a rectifier bridge to change the 12v AC into 12v DC.
The voltage is written on the fuse.
You don't. 2 12v panels together don't make 24v - doesn't work that way. If you need 24v you need to get 24v panels.
y not?
You need a 24v to 12v converter. Truck stops either keep them in stock or can get you one.
No, you need a 24 volt charger.
Wire the batteries in "series". Place jumper from neg (-) terminal to the pos (+) terminal on the other battery. You will have 24V across the remaining terminals.
The main advantage of a 24V system over a 12V system is the ability to transmit power more efficiently over longer distances with reduced voltage drop. This can be especially beneficial in applications where power needs to be distributed over a large area or distance. Additionally, 24V systems may allow for the use of smaller gauge wires compared to 12V systems for the same power transmission, saving on installation costs.