Voltage drops

[Phoenix Risen 10+ year member]

heres the deal, im running a mbuart dsc1500.1 and an ap 20004 in my 2008 tiburon, ive done the 1/0 big 3 and power wire to be back to my kenetik hc 1400, all the grounds are solid, but when i put the power to it the voltage drops down to around 12.5 at the front and back batt. and its charging at 14.7 at idle with the system off

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[Phoenix Risen 10+ year member]

i was hoping to have a small enough drop to not have my lights dim at night

 

[AQHDC3 10+ year member]

Have you looked into getting a high output alt?

 

[Phoenix Risen 10+ year member]

yea they are just expensive as hell,

 

[byrdman75 10+ year member]

either get a bigger batt, or a alt dude that batt is made for 1500 watts. u have more that that

 

[SpedBoy 10+ year member]

that is normal my voltage meter on truck dies down as the bass hits, i denitly need a new battery, only lasts about 30 sec with sub bumping

 

[nateberrier 10+ year member]

When you off work next brian? I know where you can get a decent xs up front for cheap nukka.

you NEEED better front terminals too

 

[sexy 10+ year member]

you could have ten batts and your voltage is still going to drop after a few minutes of bumping if you are drawing more than your alt can put into the ten batts right unless ofcourse you have the magic batteries that make there own power. lets say you have the two best batts ever made in the entire history of batts and they are in your car hooked up to a 100 amp alt and your pulling 110 amps at average with your system at 3/4 volume the voltage will drop and keep droping. this is not rocket science just plain simple math i just dont get why people cant get it. there are no magic batts there are people who dont understand what they see though. you dont nessisairly have to buy an expensive H/O alt you can just get a second alt for around $30 at the junk yard and run two alts. tiburons have plenty of extra room for a second alt.