fixing headlight dimming

[globalminds_ent 10+ year member]

right now my headlights dim at around 26 on my headunit that goes up to 44 i think. ive never heard what i can do full tilt because i always back it down when the lights dim. im using a lanzar opti3500d

with 2 12s and a power acoustik head unit. i have a 02 pontiac bonneville supercharged. with the battery under the backseat. i know im getting 2v from the hu. would a line driver help?

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[stereoguy]

Run 0gauge all around n do the big3 it should help

 

[clickclickw00t 10+ year member]

More Batteries, new alternator. Or get HIDs

 

[trumpet 5,000+ posts]

Check the ground connections on the headlights. They're probably not good enough. You want the paint removed and the terminals should be shiny clean metal. Cover the tightened connections with paint or silicone to keep oxygen out.

 

[smoka 10+ year member]

1. Big 3

2. New AGM batt as large that fits

3. 2nd AGM batt if still dimming.

 

[Side Show 10+ year member]

^^this, go second batt