The biggest one i can find in my price range is 200 amp. Look for a small plate with printing on your alternator indicating the maximum amperage measured in amperes for your car system.
Amazon Com Quadboss Battery Isolator With Wiring Kit One
What size battery isolator do i need. 80 amp 2 ga. Most applications will never see amps that high nor are most alternators capable of putting out that many amps. Battery isolators of this nature are rated by how much current they can carry. Edited december 28 2010 by underlok. 20 wire will be enough for 95 of applications. 80 amp group 3 motorola other than load.
The one amplifier will be the only thing run off second battery and it runs a 120a fuse. Technically you wouldnt need an isolator but its highly recommended and i would try to get a 300 amp islolater if you could find one for the most power but since your subs wont need that much. I am wanting to run a second battery and i know i need an isolator but what size. First of all i have a 320a alt and an 1800wrms monoblock amp. 80 amp 1 ga. 80 amp 4 4 ga.
A battery isolator typically is used in situations where multiple batteries are required and its primary purpose is to ensure that the failure of a single battery will not incapacitate an entire electrical system. Youll need to get an isolator with a rating equal to or larger than your alternator output. A battery isolator is a one way electrical battery that allows an electrical current to flow in one direction but not the other. Size your battery isolator appropriately in order to guarantee that it is right for your vehicle. A 70 amp isolator will set you back in the neighborhood of 50 or more. My question is do i need a battery isolator.
Which battery isolator do i need. Group 2 up to 120 amps 80069 13023a 12032a 80069 13023a 12032a 6 ga. Open the hood on your vehicle to inspect the alternator that you currently have installed on your engine. Multibattery isolator application chart getting started. 20 wire with 105c insulation under 50 feet in length is capable of handling currents of up to 330 amps. Sure power multi battery isolator application and installation instructions.
You run 10 from your alt to your front batt and then from that front batt to the rear batts. Wire size for battery isolator blanket statement. And my other question is do i hook my 10 wire to the front battery or to the alternator.
Gallery of What Size Battery Isolator Do I Need
