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.
Would it be wiser to upgrade the battery, or upgrade the alternator?
- gusismLv 58 years agoFavorite 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.
- Waxslinger1Lv 48 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.