I have the factory ACDelco Battery. I was wondering if someone knew how much voltage the battery puts out. I wanted to see about how much RMS my amp is running. My MTX Thunder 801D is rated at 250 watts at 4 ohms at 12.5 volts and 400 watts at 4 ohms at 14.4 volts. The factory test sheet is a lot higher than the rated numbers.
Thanks
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