Do I need a relay?

[Anonymous 10+ year member]

I have a 220A alt with an 1100A batt under the hood and i have 2 Stinger SPV35's in the back with the amps. My question is do i need a relay? Will it hurt if i do not have a relay?

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[Anonymous 10+ year member]

anyone?

 

[gl0ck 10+ year member]

For what? what kind of purpose are you looking for here? Maybe thinking more of a battery isolator?

 

[Anonymous 10+ year member]

just daily driving purposes.

 

[Anonymous 10+ year member]

Do i need it? Because i have heard that my batts can drain each other.

 

[Demi 10+ year member]

No, you system can drain both batteries if you running your system with the car off. If you like doing that, then you would need one.

 

[BASSMEKANIK 10+ year member]

your thinking of a battery isolator... and its best to but you dont really have to.

 

[Crzy 10+ year member]

i hooked up and tested my isolator, its ony like 30 bucks so why not. now i can park my car and not have it running to listen to music. i drained my rear yellow top and then metered the front batt thats for starting and it was still at 12.4 ish and started the car fine then the second batt charged up after it was started

 

[Anonymous 10+ year member]

won't that kill your alt if you drain the back batt because the alt has to overwork to charge that batt?

 

[Anonymous 10+ year member]

And no i will not be playing the system with the car off. Only when it is running, however i do bump the hell out of it at idle but that has to do with the alt right?

 

[2loud4u 10+ year member]

And no i will not be playing the system with the car off. Only when it is running, however i do bump the hell out of it at idle but that has to do with the alt right?

correct.

 

[Anonymous 10+ year member]

so i do not really need a relay?

 

[Demi 10+ year member]

no.

 

[Raven 10+ year member]

The only instance where a relay is necessary is for your remote line. If you short out or your ground gets pulled out, having a relay for your amps' remote line can really save your rear end.