battery wiring questions with schematics

[jcarter1885 995]

the 12volt line goes to your ignition wire either on the head unit harness or somewhere else so when you turn your car, it will turn on. Its says it in the diagram I linked.

I know what it says, I was just asking someone who has actually dealt with the product and his experience with it so I wouldnt mess anything up. I also asked him because I know he has a lot of accessories and a relay to control them and didnt know if he ran it off that or what, I can read pictures and diagrams well just want a second input for me and my cars benefit.

What size wire for the 12+wire and ground wire, appreciate it shizzzon.

[slim2fattycake 85]

I have the same relay as he does. I bought it from him which he got from oznium.

[shizzzon 461]

this type of relay is used to prevent the front and rear batts equalizing with each other when they are not in use, IE car off just sittin there...

I use a separate 30A relay on the HU's remote turn on wire to control over 50ft of LEDs and crossflow fans throughout the car. That's something different...

When wiring the solenoids- Power in and power out is obvious.. use the largest possible.

Ignition and ground wires are small. I used 16awg wire for mine.

And to add to that-

These solenoids are not specific on what terminal is what to a degree..

You have 2 large posts and 2 small posts.

The 2 LARGE posts are power inpower out. It doesn't matter which one you use for in or out and i'll get to that in a minute.

The 2 SMALL posts are ignitionground. Again, it doesn't matter which you use for 12v ignition or ground. Just choose one. Whichever is ground, the other must be ignition.

The reason why it doesnt matter which is power in or out is because when the solenoids are switched on via the key on ur car, the solenoid connects both large posts together so power can flow through both posts.

[AccordSiR87 2]

i really appreciate you all talking about this. its time for me to start thinking about getting a 2nd bat and isolator. fixed some of my confusion, thanks guys.

[Lucky 76 5]

i dont run my system with the car off so i shouldnt need one a solenoid correct?

Edited July 17, 2009 by Lucky 76

[shizzzon 461]

people always say that's the only purpose for them but it is NOT.

The MAIN purpose of a solenoid is to prevent the front battery equalizing with the rear battery bank when not in use.

My setup is a good example-

My starting battery is 3yrs old and floats at 12.8v, made by Panasonic

My rear battery bank is 1yr old and floats at 13.1v made by Powermaster

Two totally different specs that you do not want joined together all the time.

This is what causes premature battery failure.

Keep them separated when not in use and they will have the longest life expectancy.

[Lucky 76 5]

people always say that's the only purpose for them but it is NOT.

The MAIN purpose of a solenoid is to prevent the front battery equalizing with the rear battery bank when not in use.

My setup is a good example-

My starting battery is 3yrs old and floats at 12.8v, made by Panasonic

My rear battery bank is 1yr old and floats at 13.1v made by Powermaster

Two totally different specs that you do not want joined together all the time.

This is what causes premature battery failure.

Keep them separated when not in use and they will have the longest life expectancy.

alright thanks ... so get 2 of the 200 amp relays that company sells ... i must admit it is a pretty sweet comp ... i want more leds for my car .... if i were to put in 16 volt batteries would they charge up to 16 volt using a 14.4 volt alternator?

[shizzzon 461]

impossible!

Whatever your battery's float voltage is, the alternator needs to be relatively higher than that to charge it.

When comparing float voltage of battery to voltage regulator, the voltage regulator needs to be at least around 110% of the float voltage to charge and a max of 115% for best performance.

For example-

Older lead acid batts float at 12.6v

110% at least charge at 13.8v

115% charge for best performance at 14.3v

For 16v batts-

I believe they float at 17.3v

If i'm right.. then-

110% at least charge at 19v

115% charge for best performance at 19.9v

[Lucky 76 5]

impossible!

Whatever your battery's float voltage is, the alternator needs to be relatively higher than that to charge it.

When comparing float voltage of battery to voltage regulator, the voltage regulator needs to be at least around 110% of the float voltage to charge and a max of 115% for best performance.

For example-

Older lead acid batts float at 12.6v

110% at least charge at 13.8v

115% charge for best performance at 14.3v

For 16v batts-

I believe they float at 17.3v

If i'm right.. then-

110% at least charge at 19v

115% charge for best performance at 19.9v

ya i figured it would be something like that ... i feel stupid asking that as i am majoring in electrical engineering at the university of connecticut ,... no worries tho i have only completed 1 year lol

[shizzzon 461]

u keep askin questions here and you will graduate from SSA-Express by the end of the month,

[Lucky 76 5]

u keep askin questions here and you will graduate from SSA-Express by the end of the month,

ahahaah ik i ask about 239487 ?s ... i have no1 to turn to but you guys ... online it is hard to find stuff in depth or specific to my need and in ct there is no1 at all to ask ... the shop i used to work at in high school was always trying to tell me stuff but it would always be wrong lol ... one more ? is this the isolator u were talking about from oznium? http://www.oznium.com/relay200

Edited July 17, 2009 by Lucky 76

[shizzzon 461]

yep thats the one

[Lucky 76 5]

yep thats the one

k thanks 4 all ur help .... im sure ill b needing more lol