How To Connect Battery Isolator For Your Car Stereo
The following article shows how to connect a battery isolator. The isolator is installed when the car needs a second battery. This will be required by cars that have bigger stereos. Since more power is needed second battery is added with the help of an isolator.
The hood is popped. New battery is placed on the second battery tray on the driver’s side of the vehicle. It is secured using 3/8 inch ratchet and socket. Using drill the battery isolator is mounted on the fender well. Then the screws and the bracket that comes with the battery isolator are self-tapped . a length of four gauge battery cable run from the positive terminal of the first battery to the terminal on the battery isolator on the right hand side. The end of each side of the wire is stripped about half inch from the end and a terminal on to each end is crimped using a terminal crimper. The positive terminal from the first battery is connected to the terminal using a 3/8 inch ratchet and socket.
A 4 gauge battery cable run from the positive terminal of the second battery to the terminal on the battery isolator on the left hand side. The end of each side of the wire is striped about half inch from the end. A terminal on to each end is crimped using a terminal crimper. Then the positive terminal on the second battery is connected to the terminal on the isolator using a 3/8 inch ratchet and socket.
A 18 gauge wire run from the ignition terminal on the battery isolator through a grommet in the firewall and the above one is made to run to the steering column on the interior. The wire is probed with the test light and the ignition is turned to the on position then off it. this is done to check the settings. An ignition lead is there when the light turns on when it is on and turns off when it is off. The 18 gauge wire is connected to the ignition wire using a blue Scotchlok connector.
Take a lengthy wire connecting the ignition terminal of the isolator and run it down to the car interior near the steering column, test the ignition terminal with the 12 v test bulb, the light should turn on when the engine is on and should be in off state when the engine is off to ensure the connection is established.
In the other end of the 18 gauge wire inch is stripped of and using a wire crimper the ring terminal is attached to it. Now this is connected to the battery isolator’s ignition terminal with the help of a 3/8 ratchet and socket. Now the 18 gauge wire is connected to ground by connecting it to the ground source in the frame.
A wire fixed on the frame near to the passenger is a good ground point. Both the ends of the wires are fixed with a ring terminal by using a wire crimper and then it is connected to the ground using a 3/8 ratchet and socket. A four gauge wire is run from the second battery’s negative terminal to the ground. By doing all these the second battery can be made to charge.
A difficult question how to connect a battery isolator can be answered very easily by following these simple steps.
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