Ok, so I have a yellow top group 34 up front right now in my suv. I am upgrading my stereo system and will be running a Sundown Saz 3000d a JL audio 500/5 and a JL e4300. I will be using a mechman 275 amp alt and I need help deciding what to do for the batteries. Can I hook up the optima to a xs power d3100 and expect to see good results? or a d3400 up front to a xs power d3100 in the back. Is it alright to hook up batteries that are of different classes? I can't fit a 31 series up front but it looks like a good battery for the back. Last but not least I have seen good deals on a optima yellow top d31t. Would that be a good option to hook up to the optima I have now? Would it be sufficient to power my system in your opinion? It would be cheaper for me to grab the one d31t for the back but I wouldn't bother if it ain't gonna get the job done. I appreciate any help guys thanks.
