[American Viking]

Did anyone discuss LiFePo Batteries, they are smaller and lighter than conventional sealed AGM batteries. They cost only a few $$ more than comparable capacity AGM units, and come with charging ports for balancing.
They are literally 2/3 the size of a same capacity of an AGM cell, can be installed on their sides or on end offering many mounting options so the OP's decision on his blast would not be 2 or 4 batteries but more like 8 to 12 batteries on his blast.
I'm looking at fitting two LiFePo batteries in parallel to increase the Ah capacity on my VFR, and these cells would make it possible to fit roughly where current AGM battery is.