Diehard Advanced Gold AGM Group 34's

[twelvemeter 1]

I picked up a new starting battery today. I replaced my old volcano type battery with a Diehard Gold AGM Group 34. I picked it up for 141.00, now down to 131.00. My research tells me that these are rebranded DEKA's, which should be good quality. It seems that Group 31's are the rule for battery banks, but I can't squeeze in three batteries. Would 3 diehard gold group 34's plus one up front be enough reserve for 5-5.5 kW? I know XS's are king, but I need to save where I can. I will also have a MECHman 220A installed as soon as I get in new battery terminals. P.S. Anyone have personal experience with diehard gold AGM's?

[shizzzon 461]

EastPenn makes Dekas.

 

Enersys makes Odyssey.

Odyssey is some correlation to the Diehard G31s so i assume the G34 is as well.