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Okay I have just finished installing my system in my 02 Ex. It is a 1200.1 and 80.4 Amps both are JBL. I have Infinity components and 6x9s. Pioneer Sub. I have a Pioneer deck. And I have serious power problems. I know different people say to get a new alt and other people say to get a better battery. So which one is it and which would be better for my setup? Right now my lights dim and I lose power while trying to accelerate. And I barely accelerate if my AC is on. Thanks for the help.

 
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get both if u hve cash......
battery dont cost that much but alt will cost around 400 to 500.....for good one...