2nd battery
02-02-2009, 04:29 PM
#2
Drifting
what you need to do is have a fuse/breaker in line just after the first battery, and another fuse/breaker just before the rear battery. then another fuse before you amp(s)...
02-08-2009, 10:29 PM
#4
Racer
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02-08-2009, 10:35 PM
#5
Instructor
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batteries are only used to start the vehicle and filter out AC ripple from the alternator. alternators work whenever the engine is on the issue is that now it has to charge 2 batteries instead of one. but i guess i dont know anything.
02-22-2009, 03:59 PM
#7
5th Gear
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I've had 2 batt installed in 2 prior cars with no alt trbl. but the 2nd batt should be sealed (not lead acid) like an "optima" 800 or "stinger" batteries for high proformace car audio, Since it will most likly be trunk mounted. Next you need a high power relay or isolator to split the charge. when the motor runs alt charges both batt. when motor is off audio system ONLY draws power from 2nd batt. This way you can play ur music with the motor off till the 2nd batt is drained an still start your car and drive away. I've even had a dead main batt and use the 2nd batt (while still in the trunk) to jump start the my car.
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02-23-2009, 11:19 AM
#9
I've got a Stinger SPV70 that I pulled out of my maxima when I traded it in. I had it in my trunk for my stereo. You really don't need a battery isolator, just be sure to use 0ga and an inline fuse. If you're interested I'm selling it...
03-14-2009, 12:41 AM
#10
Cruisin'
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Rattman: I could have sworn the DIODE BRIDGE on your alt filters the AC ripple, not your DC battery.
You can put 500 batteries on a stock alt, and it wont hurt it as long as they are fully charged when you hook them up.
You can put 500 batteries on a stock alt, and it wont hurt it as long as they are fully charged when you hook them up.
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