12w7 or RE HC 15"? DO I NEED A BATTERY ISOLATOR?

 

Bronze Member
Username: Terps297

Potomac, MD USA

Post Number: 16
Registered: Oct-04
First of all i don't know what a battery isolator is, i'm just now looking at them and the prices seem affordable for me, gettinga new alternator is a huge step beacause i don't want to pay more than 200 for power sources for my system.

What are the advantages of a battery isolator and disadvantages?

if i buy a 240amp isolator to my stock battery and a optima yellow top battery, and my alternator is stock at 70 or so what does that mean?
 

Bronze Member
Username: Dankman

Granger, Indiana United States

Post Number: 26
Registered: Jan-05
I got mine for 125 buck and its a 200 amp isolator and it works great and it recharges the optima yellow top battery in my trunk and i think it also helps charge your car battery too but hey it works well, check it out the isolator is at the bottom of my page http://www.sounddomain.com/memberpage/772119
 

Bronze Member
Username: Terps297

Potomac, MD USA

Post Number: 17
Registered: Oct-04
how big is your alternator? i think mine is only 68 amps or 70 amps...does that matter if it's going to a 200 amp isolator?
 

Bronze Member
Username: Dankman

Granger, Indiana United States

Post Number: 28
Registered: Jan-05
My alternator is pretty big to begin with but the extra battery and the isolator will make it so your car battery and your car alternator dont get Hurt or Die.
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