Just a quick battery question?

[hansk 10+ year member]

im bout to add a second battery in my trunk for my amps... and im just makin sure ive got the wiring correct.

from the battery under my hood i can can just run the power wire from + terminal to the + terminal to battery 2 in the trunk and run a wire from - terminal under the hood to - terminal to battery 2 in the trunk? and i correct on this?

Click to read more...

 

[Cabin_Pressure 10+ year member]

Yes, parallel. Also, fuse at the rear battery and where the cable leaves the front battery.

 

[hansk 10+ year member]

why 2 fuses and not just one?

 

[Cabin_Pressure 10+ year member]

Two power sources.

 

[hansk 10+ year member]

so one fuse on both +/- or both on + im a little confused

 

[Cabin_Pressure 10+ year member]

One inline fuse in the rear battery + cable and one inline where the + cable leaves the front battery.

 

[hansk 10+ year member]

ok thats what i thought but i was thinkin myself why the hell would you need one on the -.....lol

 

[46panel 10+ year member]

X2 to what the above said. Two fuses on the main power wire, one close to the front battery, one close to the rear battery. Then depending on how far the back batteries are from the amp, possibly another.

 

[hansk 10+ year member]

ok thats what i thought but i was thinkin myself why the hell would you need one on the -.....lol

but i have also read that some other people havent even used fuses

 

[46panel 10+ year member]

They risk having a fire...

 

[hansk 10+ year member]

They risk having a fire...

oh i do see why you would use fuses but i was just makin sure

 

[hansk 10+ year member]

now would you do a fuse after the second battery + before you plug into + power on the amp to protect if anything happens or is that not needed

 

[mbrooky 10+ year member]

why 2 fuses and not just one?

yes like others said fuse the wire at the front and the rear...because if there is a short and u are only using one fuse, depending on where the break is, there will still be one batt connected.

 

[46panel 10+ year member]

now would you do a fuse after the second battery + before you plug into + power on the amp to protect if anything happens or is that not needed

Depends on how long that run is...I just made a thread kinda asking about this because I am thinking of not running one, but my sundown 3000's dont have internal fuses so I think I should. A fuse in between there won't hurt nothin at all only protect.

 

[hansk 10+ year member]

cause im gonna be hooking it up to a hifonics brutus bxi2010D and then another smaller amp for my componant...havent decided on the second amp what to get yet..