More power! electrically that is

[splintrcel]

I have a six pack of lights i got for my truck that go around the vehicle to give a surrounding light source. It works pretty well but each light is 55 watt (halogen) and draw quite a bit of juice. Would a dual battery setup add a little brightness to them or do i need a larger alternator then the stock one. The lights are wired in two groups of three. On each branch the lights are in parallel. The system draws a total of 330 watts (27 amps) off a 12 volt system. I also wanted to add 4 forward aiming driving lights so i want to have plenty of juice to go around. If it helps i was using the lights only at idle because i was lighting a work area. i will throw up pics of my setup once i find my iphone cord. I did use two relays btw for powering the lights, i am not ghetto.

 

[GAINMOB]

you will need to do both!!! bigger alt and another battery...

 

[splintrcel]

that sounds $$$$$$$$$$. Which is better to do first

 

[GAINMOB]

seeing as your running lights i would do battery...that will give you longer run time...then alt 2nd...are you using them when the truck is off?

 

[splintrcel]

I only have been using them when the truck is on. My current battery sucks so bad.

 

[Big White]

What is the voltage at the battery when the truck is running?
How long do the lights stay on when you are running them?
The 130 amp alternator should cover it.

 

[GAINMOB]

do it in stages and see what happens...upgrade/get better battery 1st...i have sears die hard...best battery i have used in any vehicle ive owned...then move to alt...then double batter...big-3 upgrade too

 

[03expyMG]

Stupid question. What's the "big 3"?

 

[Jay87LX]

Stupid question. What's the "big 3"?

Google it, but essentially increasing the gauge wire that goes from the +batt to the alt, engine to chassis ground and batt- to chassis
How to upgrade the Big Three

 

[splintrcel]

I have seen those kits for the bigger alternator. My battery is a piece of crap. I do need a new one and if i did get a new one i mine as well get two.