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View Full Version : adding another battery

shady1
03-06-2002, 01:44 AM
i have one jbl bp1200a1 running 2 15" visonik DVC at this time with a 1.0 farad cap...i am wanting to double the system with 2 jbl 1200 and 4 15" visoniks.....my electrical system is already dimming when basslines hit....can i add another battery? how easy is it to do? is the the best solution? please advise...thanks
Funk
03-06-2002, 10:54 AM
get a red top optima they do the best in dual setups, theres a shop that sells pans and kits to make the setup very easy, I'll try to find the site that sells them.
FeeD
03-06-2002, 11:10 AM
you will probably want to upgrade your alternator too
ibthumpin
03-06-2002, 03:06 PM
Yeah, An alternator upgrade might be the thing to do first. i've always thought dual batteries would be the way to go - but in reality, the second battery is just another load on an already taxed alternator.
Running with two batts is certainly benificial because you can run one down and still have a full charge to start the truck. A higher putput alt. would most likley solve your dimming problem
tphillip23
03-06-2002, 03:21 PM
someone on another forum had a dual setup and they got it at the link below. i havent checked this place out yet so i dont know if it is what u want or not. http://www.wranglernw.com/
Funk
03-06-2002, 03:57 PM
by gawd thats the site I was looking for you da man lol good thing you found that because I was pulling my hair out trying to find it.
cracer
03-08-2002, 12:30 AM
for the second battery in a system I would get a optima yellow top. It is a deep cycle battery and is made to be discharged completely like you will do with a seconde battery.

I would get an alternator first. a second battery is only another thing that the alternator must charge. It really only helps after the car is turned off. I also doubt that the battery would be much less either. Once you have a yellow top $160 an islolator $100, a battery tray $40 wiring $30 it would have been cheaper to get a 200 amp alternator for $250. I am doing an electrical overhaul right now. I have put in a 200 amp alt, a second battery, and a 3 farad cap. The item that by far did the most was the alternator. Remember the alternator is the only thing that creates current, everything else just suppliments it as needed.
rollinstyle
03-08-2002, 03:59 PM
What kind of alternator was that? I was quoted like $320 for a 200 amp Mean Green.
cracer
03-08-2002, 11:48 PM
powermasters alternator. It is a great alt. I bought it for 200 amps the proof of performance sheet shows it actually doing 245 with 135 at idle.