Battery Boondocking Question

[JRTJH]

The comparative information on the Interstate GC2 (6 VDC system with 2 batteries) and the GC12 (12 volt single battery system):

GC2: price 94 each/188 for the pair)
amp/hr rating: 20hr/210

GC12: price 229 (41 more expensive than two GC2's)
amp/hr rating: 20hr/150

So, "doubling up" to install 4 GC2's would cost 376 and provide an amp/hr rating of 20hr/420

"doubling up" to install 2 GC12's would cost 458 ($82 more than the 4 GC2's) and would provide an amp/hr rating of 20hr/300.

It looks to me like the 2 GC2's are about 50% more power capacity with a savings of $41 and the 4 GC2's remains about 50% more power capacity than the pair of GC12's with a savings of $82.

The "downside" for me, is the weight. The GC2's weigh 58 pounds each and the GC12's weigh in at 84.5. So the 4 GC2's would weigh 232 pounds while the 2 GC12's would weigh 169. That 50% added power capacity comes at a "cost" of about 65 pounds more weight. Of course, in batteries, thicker led plates weigh more and additional plates make the battery weigh more.

Given the information, for me, I think I'll accept the weight penalty to gain the power advantage. For someone with a "weight challenge" or a "space challenge" may benefit from the GC12's.

Bottom line, at least for me, is that no matter which you choose, GC2's or GC12's, there is a marked improvement over a pair of "dual duty GP27 marine deep cycle/cranking" batteries.