Wiring questions

[Diceman83]

Hey all,

I've got some questions about wiring up a single amp with a second battery.

Here's a quick diagram:



Do you see anything wrong with this, and what do you think about the diode idea to eliminate chassis current noise? I don't know if diodes exist that can take the kind of current loads that go through the grounding wire, but I'd like to look into it.

[ngsm13]

Hmm...i'm not seeing the diagram show up...

NG

[Diceman83]

that's odd... My computer seems to be serving the images just fine... you my try clicking here and see if you can access it manually. If you still can't see it, I'll try rebooting my computer to reset the server. Sometimes my ISP drops our connection too, and you might have been trying when my connection was out.

[ngsm13]

Originally Posted by Diceman83

that's odd... My computer seems to be serving the images just fine... you my try clicking here and see if you can access it manually. If you still can't see it, I'll try rebooting my computer to reset the server. Sometimes my ISP drops our connection too, and you might have been trying when my connection was out.

Hmm...not getting anything!

host it for free on www.imageshack.us

Use one of the links that says "for forums" and it'll post the pick in here...

NG

[Mannyb18b]

Ya not seein anything either, but i dont fully understand what you are trying to say. Wiring up an amp to a second battery? if your talkin bout something that simple (wich i doubt) wire it the same you would with the battery under your hood, run each battery parallel

[ngsm13]

Originally Posted by Mannyb18b

Ya not seein anything either, but i dont fully understand what you are trying to say. Wiring up an amp to a second battery? if your talkin bout something that simple (wich i doubt) wire it the same you would with the battery under your hood, run each battery parallel

Make sure the batteries are AT LEAST the same type...if not the same brand/kind. Wiring ONE regular starting battery (i.e. Red top) and One DEEP Cycle battery in parallel (i.e. Yellow Top) in parallel creates more stress on your alternator to charge both! Keep that in mind!

NG

[Mannyb18b]

I run a Yellow Top under the hood, and a basic Everlast battery in the trunk, if you do a similar setup just make sure you dont run your system with your car off an try to keep the batteries fully charged.

[Diceman83]

Well, I know the one under the hood is a stock honda battery, and the secondary will be an older battery from my Dad's Ford Ranger. I also seriously doubt I'll be using the system at high power for extended periods of time. There isn't much of a community in my town that appreciates this sort of thing (think lots of old ladies).

Does anyone know what a diode is anyway? You seemed to miss that idea completely. I read on one of the basic car audio sites about how problems with back current causing noise in the system when the brake lights turn on, and I thought that since diodes are designed to allow current to only flow in one direction, they would be the ideal solution to keeping grounding noise out completely. The only problem is the only diodes I've ever seen are on like 25 gauge wire, and could never handle the current. Does anyone know if diodes big enough even exist?

[ngsm13]

Originally Posted by Diceman83

Well, I know the one under the hood is a stock honda battery, and the secondary will be an older battery from my Dad's Ford Ranger. I also seriously doubt I'll be using the system at high power for extended periods of time. There isn't much of a community in my town that appreciates this sort of thing (think lots of old ladies).

Does anyone know what a diode is anyway? You seemed to miss that idea completely. I read on one of the basic car audio sites about how problems with back current causing noise in the system when the brake lights turn on, and I thought that since diodes are designed to allow current to only flow in one direction, they would be the ideal solution to keeping grounding noise out completely. The only problem is the only diodes I've ever seen are on like 25 gauge wire, and could never handle the current. Does anyone know if diodes big enough even exist?

Yeah, I know. Basically, what I think you're thinking of...but in a fail-safe real world application is a battery isolator. They're available online, and it separates the auxillat battery from the starting. Therefore, the auxillary battery can be completely drained (not good unless it's a deep cycle anyways...) and the starting battery can till be used to start the vehicle! Also, when the car is on...it charges each "separately", peace

NG

[ponchonutty]

Originally Posted by Mannyb18b

I run a Yellow Top under the hood, and a basic Everlast battery in the trunk, if you do a similar setup just make sure you dont run your system with your car off an try to keep the batteries fully charged.

You did mount the battery inside a battery box and vented it, right? If not, you're gonna blow!

[Diceman83]

Originally Posted by ponchonutty

You did mount the battery inside a battery box and vented it, right? If not, you're gonna blow!

What's going to happen? Why would a battery blow up if it's just strapped inside the trunk?

[Diceman83]

Ok, sorry to start this up again, but here's an imageshack.com hosted image of how I plan to wire my system:



Thanks for all your help so far!

[Mannyb18b]

Originally Posted by ponchonutty

You did mount the battery inside a battery box and vented it, right? If not, you're gonna blow!

THe hell r u talking about?

[Mannyb18b]

That diagram looks ok, but dont cut into those power and ground wires. Use terminals off of the battery

[bumpinstang77]

yea poncho wtf are u talkin about?