Skip,
Try another timing setting on the CC80. You might be surprised with the results. You can expect the 6S pack you have to hold 3.7 to 3.75V/cell at 60 to 70 amps load without protesting or heating up. So, that means the pack will be holding 22.2 to 25.5 volts .... prop it for 60 amps any you will be making 1332 watts minimum, while being "easy" on the system. FYI ...... I've run this system at 1600 watts without any problems.
Ed