vnflores13 wrote:
Wylie_Tunes wrote:
Just a quick note. 2000W on the audio output side is in AC, and does not equate to DC draw at 12V. another thing to consider, is that 2K watts in true RMS or using the amp manufacturers advertising "peak" numbers?
im lame when it comes to tech talk..LOL..what the translation??
In your opening post, you stated you have a 2000 watt stereo. it was then calculated that it is putting a 167 amp draw on the boat.
The 2000 watt is in AC but the stereo draws DC. You cant apply ohm law using audio AC and come up with a DC current draw. Realistically, your 2000W system is not drawing anywhere near 167A DC.
next piece of the puzzle. That 2000W could be an unrealistic never achieved peak amplifier output number used for advertising. A more real world figure would be no more than half that in terms of watts RMS. In this case, the amp draw calculations would be much much less than 167A DC.
You need to charge batteries as soon as possible. Leaving them down until the next trip out will hinder their return rate.