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Sonic Electronix

Lights dimming...even with Big3, Mechman Alt, and Optima battery...


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Okay, this is what I'm running.

Pioneer headunit

Rockford t1500-bd on two Rockford T1 15's

Two Alpine MRP-f600 on highs

Big 3 with Knu 0/1g wire

Optima Yellowtop battery

Mechman 270A alternator

Why are my lights still dimming? Do I just need more batteries? If so, how many? And I've been thinking of adding another T1500-bd. So, I need help! Suggestions?

Float mounted IPad Mini playing through Bluetooth

IStreamer for Iphone or Ipad

Rockford Fosgate 3Sixty.3

RE Audio XXX 6.5's in each door with a second set soon to be added to the front doors

Two Rockford T600-4's for the components

Blowthrough with two Sundown SA-8's

RF T1500-bd's for the subs

8000k H.I.D.'s in headlights and fogs

Lifted 2" in front and 2" in back (soon to be installed a Suspension Maxx 1.5" body lift)

17" Ultra Rogue 175's on Nitto Trail Grappler 285/17 70's

Undercover Bedcover

Surco Roof Rack

Five Hella Lights on front bumper

270A Mechman Alternator

Two Optima Yellow Top batteries

Dynamat double layered each door and roof, quadruple layered on back wall, single layered on floor with Second Skin Luxury Liner Pro on top.

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Awesome! I was just afraid my alternator was janky! I just put it in yesterday morning! HA HA. I'm new to the "high output alternator" and "lots of batteries" group! So, I might get two 3400's. That should do it, right? OR should I just get a 3100?? Thanks again guys! Ya'll are helping a lot!

Float mounted IPad Mini playing through Bluetooth

IStreamer for Iphone or Ipad

Rockford Fosgate 3Sixty.3

RE Audio XXX 6.5's in each door with a second set soon to be added to the front doors

Two Rockford T600-4's for the components

Blowthrough with two Sundown SA-8's

RF T1500-bd's for the subs

8000k H.I.D.'s in headlights and fogs

Lifted 2" in front and 2" in back (soon to be installed a Suspension Maxx 1.5" body lift)

17" Ultra Rogue 175's on Nitto Trail Grappler 285/17 70's

Undercover Bedcover

Surco Roof Rack

Five Hella Lights on front bumper

270A Mechman Alternator

Two Optima Yellow Top batteries

Dynamat double layered each door and roof, quadruple layered on back wall, single layered on floor with Second Skin Luxury Liner Pro on top.

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Oh and should I run extra 0g wire to the back batteries or double up the Big3? Thanks.

Float mounted IPad Mini playing through Bluetooth

IStreamer for Iphone or Ipad

Rockford Fosgate 3Sixty.3

RE Audio XXX 6.5's in each door with a second set soon to be added to the front doors

Two Rockford T600-4's for the components

Blowthrough with two Sundown SA-8's

RF T1500-bd's for the subs

8000k H.I.D.'s in headlights and fogs

Lifted 2" in front and 2" in back (soon to be installed a Suspension Maxx 1.5" body lift)

17" Ultra Rogue 175's on Nitto Trail Grappler 285/17 70's

Undercover Bedcover

Surco Roof Rack

Five Hella Lights on front bumper

270A Mechman Alternator

Two Optima Yellow Top batteries

Dynamat double layered each door and roof, quadruple layered on back wall, single layered on floor with Second Skin Luxury Liner Pro on top.

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Test your alternator. And test the resting voltage of your battery. You should not be experiencing voltage drop. Those Mechman units are beasts, but it is possible to have an issue when you're putting out so many units.

Tell me...does this smell like chloroform to you?

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you could have installed the alt wrong

and um hella lights on bumper, that could be taking a lot of juice, dont know how many and of what size tho

the Hella lights aren't hooked up right now. Yeah, I've got a call and email into Mechman right now. I think I just need more batteries cause it is a lot louder than it was. I should say this, my interior lights are the ones dimming. I'll go try it real quick with headlights on and see how it goes. But they're HID's, so I don't know what'll mean compared to regular halogens.

Float mounted IPad Mini playing through Bluetooth

IStreamer for Iphone or Ipad

Rockford Fosgate 3Sixty.3

RE Audio XXX 6.5's in each door with a second set soon to be added to the front doors

Two Rockford T600-4's for the components

Blowthrough with two Sundown SA-8's

RF T1500-bd's for the subs

8000k H.I.D.'s in headlights and fogs

Lifted 2" in front and 2" in back (soon to be installed a Suspension Maxx 1.5" body lift)

17" Ultra Rogue 175's on Nitto Trail Grappler 285/17 70's

Undercover Bedcover

Surco Roof Rack

Five Hella Lights on front bumper

270A Mechman Alternator

Two Optima Yellow Top batteries

Dynamat double layered each door and roof, quadruple layered on back wall, single layered on floor with Second Skin Luxury Liner Pro on top.

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Share on other sites

Test your alternator. And test the resting voltage of your battery. You should not be experiencing voltage drop. Those Mechman units are beasts, but it is possible to have an issue when you're putting out so many units.

I went to AutoZone a little bit ago and they said my voltage was 14.8 BUT when I asked him what my alt was putting out, he said 90A at idle, but he never actually brought the big setup out to check. It was this little black box. So, what does that mean?

Float mounted IPad Mini playing through Bluetooth

IStreamer for Iphone or Ipad

Rockford Fosgate 3Sixty.3

RE Audio XXX 6.5's in each door with a second set soon to be added to the front doors

Two Rockford T600-4's for the components

Blowthrough with two Sundown SA-8's

RF T1500-bd's for the subs

8000k H.I.D.'s in headlights and fogs

Lifted 2" in front and 2" in back (soon to be installed a Suspension Maxx 1.5" body lift)

17" Ultra Rogue 175's on Nitto Trail Grappler 285/17 70's

Undercover Bedcover

Surco Roof Rack

Five Hella Lights on front bumper

270A Mechman Alternator

Two Optima Yellow Top batteries

Dynamat double layered each door and roof, quadruple layered on back wall, single layered on floor with Second Skin Luxury Liner Pro on top.

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Why do you need to go to autozone? Get some tools fool :)

And do you even know what your voltage is right now?

Tell me...does this smell like chloroform to you?

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