voltage drops bad???

[cleanmerc01 10+ year member]

hi i have an 01 marquis with 3 12" p3 and a 4000 watt lanzar promax amp and a P.A 650 watt amp. i did the big three and installed a second battery in back for amps. Now i have a major drop in volts when the bass hits. ???????? i clueless on why. any suggestions on what to do????

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[CL1CKCLACK 5,000+ posts]

voltage drop is good

 

[Vossy 10+ year member]

;7410721']voltage drop is good

HO alts= bad

 

[05fronty 5,000+ posts]

you need a cap

 

[bhsdriller 10+ year member]

the battery in the back is connected to the one in the front right? With 0gauge

that lanzar amp is pretty beast though

 

[CL1CKCLACK 5,000+ posts]

the battery in the back is connected to the one in the front right? With 0gauge
that lanzar amp is pretty beast though

dont listen to him, get rid of your back batt, get a giant cap. and youll be all set

 

[Tone415 10+ year member]

u guys are assholes

 

[CL1CKCLACK 5,000+ posts]

u guys are assholes

shut up noob. People who run PA arent allowed to talk //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

 

[Vossy 10+ year member]

u guys are assholes

Where's your helping hand?

 

[cleanmerc01 10+ year member]

so i should ditch the second battery and buy a cap. how is that going to solve the voltage drop. i thought i wouldnt have dimming lights

 

[CL1CKCLACK 5,000+ posts]

so i should ditch the second battery and buy a cap. how is that going to solve the voltage drop. i thought i wouldnt have dimming lights

yes, ditch the battery, buy a cap. and crank the gains.

 

[bhsdriller 10+ year member]

No....you usually want to ditch a cap and install a second battery

these guys are just being stupid.

Are you using the back battery as a distribution block and running the wires off it to the amps?

 

[cleanmerc01 10+ year member]

yea i have an isolator and second battery all 0 gauge then 650 amp 6gauge and 4000 amp 4gauge

 

[dbeez 5,000+ posts]

Need.to.know how the batts hooked up and if hou are sure the ground is good on it what is the secondary battery.

 

[bhsdriller 10+ year member]

not sure, most people don't use isolators though. Don't know if that would be a problem

Edit: yeah where is the back batt grounded