Is a 6V battery better than a 12V battery?

When it comes to 6V vs 12V batteries, a 6 volt battery usually produces more amps than a 12V battery. Therefore, connecting two 6V batteries in a series is better than using a single 12V battery. However, 12V batteries are improving, so the difference between them is decreasing.

Can I replace a 12V battery with a 6V battery?

You can replace a 12V battery with a 6V battery so long as the amperage is equal or better. For example, if you had 6 - 6V, 10amp batteries, you would need to replace them with 3, 12V 20amp batteries.

What happens if a 6V battery dies in a 12V configuration?

If a series pair of 6V batteries die in a 12V configuration, you're sitting in the dark, until you get the replacement member of the pair, and most people would recommend replacing both, to balance the load across both batteries. 6V in series = no redundancy, in that scenario. One significant reason, is AH per pound.

Which battery is better – 2 V or 2 V?

Some larger batteries have removeable cells that are bolted together, which also helps. IMHO, the fewest number of cells per battery, the better. 2 V batteries are very nice. This is a bit beyond the original question, but just belaboring the point, while throwing in a few misspelled words.

Which battery is better if one battery fails?

An additional point, is that when/if one cell fails, the fewer the number of additional cells that would need to be tossed when replacing that battery, the better. Some larger batteries have removeable cells that are bolted together, which also helps. IMHO, the fewest number of cells per battery, the better. 2 V batteries are very nice.

How many cells in 2 x 12V?

And it becomes obvious. 2 x 12v =12 cells, 2 x 6v =6 cells for about the same overall weight and capacity. Off-grid.