Question: is 24 volt better than 12 volt?
Answer: Other things being equal, that would cause losses on 24v to be half those on 12v. It is clear from this that a 24v system is always better than a 12v system – provided you can physically fit two batteries. ... The amount of energy in the batteries is amps x hours x volts. Consider a 12v 60 Ampere Hour battery.