I have a DC 250 amp alt powering Sundown 3000's. Looking for the cheapest/best batteries to do the job. Would love powermaster D3100's but pricey, also thought of the big C&D's...but don't know if it's worth getting 1 or 2 D3100's or 3 or 4 different big batteries? Got the big three done and kinetik 1800 under the hood.
