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

No, need to get 24v to 12v converter...

Lwiddis wrote:
You have found 24 volt RV appliances? Costly?

No sure, I am looking at battle born...

MEXICOWANDERER wrote:
You found 12-cell batteries?

Interesting, so the battery balancer is better than DC-2-DC converter?

DrewE wrote:
Internally, a 24V battery is exactly the same thing as two 12V batteries in series.

If you're using a battery balancer to extract 12V from your 24V batteries, you need access to the 12V midpoint voltage of the two halves of the battery bank. If you aren't planning on using one of these, and haven't considered it, I would suggest taking a look; they're efficient and effective and get around some of the limitations of other ways of getting 12V power from the 24V supply. It is a moot point, of course, if you don't have any 12V stuff to power.

The fewer sets of batteries in parallel the better. Do it which ever way let's you achieve your desired capacity with the fewest parallel connections.
It is good so see the lithium batter manufacturers making 24v and 48v batteries. It's a far better voltage for a large solar system.

Internally, a 24V battery is exactly the same thing as two 12V batteries in series.

If you're using a battery balancer to extract 12V from your 24V batteries, you need access to the 12V midpoint voltage of the two halves of the battery bank. If you aren't planning on using one of these, and haven't considered it, I would suggest taking a look; they're efficient and effective and get around some of the limitations of other ways of getting 12V power from the 24V supply. It is a moot point, of course, if you don't have any 12V stuff to power.

You found 12-cell batteries?

If you’re interested in maximizing the capacity check which configuration will give you the most amp hours. Otherwise no difference electrically.

You have found 24 volt RV appliances? Costly?