I have a XS D1200 and its a nice batt. I have a stock alt which is 105 amps, regular old batt up front, Big 3 in 2/0, 2 runs of 2/0 (1+,1-)and a D1200. I get a steady 13.6 at full tilt. As long as your connections are good I dont see a problem. Im gettin 1300ish after all rises out of my amp. I could see this batt supporting alot more power with the right charging system.