I am about to order two optima yellow top batteries for my boat. I am not sure which one to order though. There are 5 different kinds...D34, D34/78, D6V, D31T, and D31A.
Anyone who knows what all that means, can you please help me out and just let me know which ones are better for a boat with a few accessories?
If it matters, 2 sets of tower speakers, 2 subs, 3 amps and 4 speakers inside the boat, and a light bar.