headlights dimming

[kirby mane 10+ year member]

So I cant add a hc600 or anything similar

 

[SourDeez 10+ year member]

Yeah.. you can.. I dont know what size battery you use though. Look up what group size your battery is then look for good dry batteries in that size

Or you could always wire up whatever size you want in your trunk

 

[kirby mane 10+ year member]

Got agm battery from orilieys redone grounds lights stil dimming but voltage is up

 

[SourDeez 10+ year member]

When you did big 3 did you add it to stock wiring or remove the stock wiring

 

[kirby mane 10+ year member]

Added

 

[SourDeez 10+ year member]

Added

Weird, I had terrible dim with my subs (2400rms at .5 ohm) and since I did the big 3 and added two yellow tops (one in hood - one in trunk) and got a new alternator (not high output, but a new stock 130amp) I have zero dim at all

Your alternator likely has alot to do with it

Adding a second battery can always help too.. and its super easy to do, plus, the benefits of having dual batteries is awesome (jump your car from either side, have a backup battery in your trunk to throw in your friends dead car)

 

[kirby mane 10+ year member]

My battery is in the trunk and it and the alternator are new

 

[SourDeez 10+ year member]

My battery is in the trunk and it and the alternator are new

Your second battery is in the trunk or your ONLY battery is in the trunk? How many amps is the alt

 

[kirby mane 10+ year member]

Only battery is in the trunk and alt. Is 180 amps

 

[SourDeez 10+ year member]

Only battery is in the trunk and alt. Is 180 amps

Try adding a second battery. Your alt should be more fine. Your electrical can't keep up with the amperage being discharged for whatever reason.

Your oreilly agm is not deep cycle I believe. Maybe return that for a deep cycle (yellow top, etc)

What amp are you running, and at what ohm?

 

[frogcase2002 10+ year member]

All grounds sanded really good and really tight? ?

 

[kirby mane 10+ year member]

Grounds r good and running Audiopipe ap1800 at 2 ohms

 

[SourDeez 10+ year member]

Grounds r good and running Audiopipe ap1800 at 2 ohms

Double check your wiring and make sure you arent running it at .25 or .5 accidently (or ideally get a DMM to check)

Triple check your grounds. A bad ground will def cause this. Is your amp grounded to your batterys negative?

 

[kirby mane 10+ year member]

Battery and amp share the same grounding point but amp is not grounded to battery post if that makes any difference and amp is seeing 2.1 ohms at terminals

 

[NASTY08IMPALA 5,000+ posts]

Add a extra ground straight to neg battery post

 

---------- Post added at 04:47 PM ---------- Previous post was at 04:46 PM ----------

 

That kind of power at 2 ohms should not be dimming much at all with you.re setup