Car Audio Battery or Alternator?

Alright if your system is around 850w RMS.

And you have a 110A, Big three - W/ 4 AWG KNU OFC.

700CCA battery...

Would it be wiser to upgrade the battery, or upgrade the alternator?

3 Answers

  • gusism
    Lv 5
    8 years ago
    Favorite Answer

    Do you even need to upgrade anything? I mean your alternator is 110A and your system pulls a maximum of ~60A when the car is running. I don't think you need to upgrade anything. CCA ratings for batteries apply to how efficient they are in zero temps.

  • 8 years ago

    alternator unless your going to be playing your system with the car off then you need batteries .

  • 8 years ago

    alternator if anything, 700cca is plenty.

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