So after reading and searching the fourms I just wanted to confirm my choice is correct before moving forward.
I have an Axis A20.
I have the stock stereo and plan on going with 2 Rev-8's (maybe 10's) for the tower powered by Syn-4.
As for a battery, I have the stock () and plan on adding one for the stereo. I was thinking an Optima blue top (31M is correct option?). I have the battery isolator switch so it is fine to use two different batteries?
As for a charger, most suggest ProMariner 20? If I just have the 2 batteries so I need the 20 or will the 12 work fine?
Also, is this just a rebranded ProMariner?