Is installing two batteries worth it. Or would i have to buy a high end alternator to go with it? So i don't burn my alternator out.

 

im curious myself, whats a safe battery wire configuration i go to parties and like my stuff to pound for a long wile don't have the resources to get a dual alt, setup can you wire a second battery like connect them positive to pos, neg to neg, how about a deep cycle with a normal cold crank battery?

 

does a battery isolator help with two battery installs?

 

i have 1 custom alt for my explorer. Spent about close to 300. it puts out about 130 at idle and 200 amps at around 2300rpm
i have one yellow top under the hood and one under the back seat. im not running any fuses between the lines.
Before u get another battery or alt, try the big three.

 

it will only help if you are listen to music hard with the car off.