[mans]

Hi folks,
I'm looking to have about 200 ah of available battery power for an alt delete.
after much searching what is available out there in the battery world, I've come to two options. I've weeded out the junk, and I unfortunately had to weed out the best (trojans) due to their heavy price tags. but I have some very good and affordable inbetweens, now it's just a choice between the two options.

Route #1 is a pair of 100ah (@20amps) 12v marine deep cycle batteries from the batteries plus store. Wired in parallel.
this should give 12v and 200 ah and will cost $220+tax. (from the outside they are the size of car batteries.)

Route #2 is a pair of 6v 220ah (@20amps) golf cart batteries wired in series to provide 12 volts and 220 amp hours. this will be a little cheaper at $190+tx for the pair. (these are manufactured by "crown" battery company for another company and have a different label, but i'm told it's identical to the crown battery except for the label). they should be 92%-95% as good as the famous trojan T105 as far as capacity, without the T105 price tag. (they look like a typical 6v golf cart battery.)


I can go either way.
any reason to go "wired in parallel" over "wired in series"?
which way would we be better off?
someone mentioned earlier that when u wire batteries in parallel they attempt to charge each other till there is no power left, but how can that be true, aren't there large battery banks in parallel for off grid housing etc. etc. wired in parallel?
M.