headlights dimming

[YarisSedan]

I am running a 200W 4 channel amp and i get some mild occasional dimming. And you are running more than 3 times more than me lol so maybe so. If your bass is dipping into the battery constantly its going to take its toll and wear out faster and then your symptoms are going to progressively worse like what you have now. Maybe try taking it to auto zone to have them load test it for you. They do sell deep cycle batterys there too.

I had this issue with my acura when i was running 2 high powered amps. I went through 3 different batterys within a years time. Finally just went and upgraded my altenator and my battery to a optima. That cured most of my problems.

[1NZYaris1]

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[Sidicas]

Originally Posted by YarisSedan

If your bass is dipping into the battery constantly its going to take its toll and wear out faster and then your symptoms are going to progressively worse like what you have now. Maybe try taking it to auto zone to have them load test it for you. They do sell deep cycle batterys there too.

I had this issue with my acura when i was running 2 high powered amps. I went through 3 different batterys within a years time. Finally just went and upgraded my altenator and my battery to a optima. That cured most of my problems.

My thoughts exactly.. These batteries aren't meant to be discharged, if you're running a high power stereo system, don't ever run it with the engine off.. Even discharging lead acid batteries to 70% on a regular basis is not good for them.