Secondary Battery

danny_holtermann

danny_holtermann

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SO i have been pondering this for awhile.
I am thinking about putting a secondary battery in the trunk to run my extra accessories such as leds line lock and my furnace blower motor....J/k about the furnace motor, but anyways. It seems to me that there is really no real good place to drill a hole through the firwall gromet it and run an accesory wire to it, any idea's inputs whatever you have.....I have not done it yet, so no one is allowed to rip on me for doing it, only thinking of it
 
It is a good idea to relocate the original battery to the trunk, as well as any addition batteries. It significantly helps with weight distribution.

In my limited experience it really isn't worth the extra weight to add a second battery.

It would be much better to upgrade your current charging system with a newer more powerful battery, such as an Optima or Odyssey battery.

It is also a good idea to upgrade to a 200A+ alternator.

The stock grounding system is also lacking. Look into a grounding kit with 0ga wire.

Doing the above will be far better (and probably less expensive in the long run) than adding a second battery.
 
I just don't think its necessary. Not knocking you, but that just does't seem to be needed. The battery in my car is the exact same battery that the Powerstroke Diesel trucks use, I think the factory battery has enough ass to handle pretty much anything.
 
DieselDan said:
I just don't think its necessary. Not knocking you, but that just does't seem to be needed. The battery in my car is the exact same battery that the Powerstroke Diesel trucks use, I think the factory battery has enough ass to handle pretty much anything.
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except you only have one, and the diesels have 2.
 
Ya, but a diesel can start and run on 1. It helps mainly for coldstarts and the load of the glow plugs.
 
I wouldn't touch an Optima lately, any made 2-3 years ago or older seem to do fine, their quality control has gone downhill since then from what I've seen..

When I worked at Autozone there was a 2000CCA 12v industrial battery I could order. That's what I'd do if I really needed more power. IIRC it had a vent tube for easier/safer trunk mounting.
 
An extra battery in these cars is a great idea. It would take alot of loss that the alt has to pick up away. I had a Yugo with mean beat and had two batteries. After I killed 2 alternators I added the extra battery and never had another issue. These cars seem to have alternator issues and two batteries would help that imo.
As far as batteries go I will only use Interstate [green top or better]. And as a comparison pick up a regular battery and then an Interstate. The Interstate has more guts.

And instead of going through the firewall go under the car and into the trunk. Just make sure and have a really good ground.


BIG GREEN GROUP 65 FTW!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

2010 099.jpg
 
Old dell that I traded a neon open sign for. With a sony vaio first edition monitor.
 
1bad4.6l said:
And instead of going through the firewall go under the car and into the trunk. Just make sure and have a really good ground.
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Under THE CAR FTL.... running wires underneath the car starts fires, or short, or any other bad thing to happen
 
That's what loom and zipties is for. And the right location. You already have brake lines and fuel lines under there. And tranny lines and................. The list goes on and on. How do the tail lights and the fuel sender and all the abs stuff on a truck get there? I'm just sayin. I also used to build boomtrucks for a local company [H.E.R.S. hydraulic equipment repair specialists] That had fat wires runnin' all over.
 
I still don't know about the whole 0 gauge on the underside of a car, i would rather run it through, any good spots to go through the firwall?
 
You will have to make one. Look'in at it with a motor and all I can't say. Sorry on that one.
 
i just did mine with 0 awg gauge i removed the plastic fender wall and inside the car i moved the footrest carpet out of the way test drilled a hole right at the point inside the car were the floor angles up and it was a perfect fit inside and outside , just grommet it and silicone it and your set
 
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