cLos510 Posted May 24, 2015 Report Share Posted May 24, 2015 i have a 320 amp alternator with a yellow optima battery under the hood and a stinger Spv35 battery in the trunk..i did the big 3 upgrade but i was wondering if i would need to run a 2nd 1/0 gauge wire from the positive post of my alt to the 2nd battery because the two batteries are not connected to eachother..any suggestions or help would be much appreciated Link to comment Share on other sites More sharing options...
reedal Posted May 25, 2015 Report Share Posted May 25, 2015 If the two batteries aren't connected, then yes, run either a positive from the front battery to back or from the alt to the back battery. What's the use of the alt if it doesn't have any connection to the battery the amp(s) are on? SMD Tool Map https://www.stevemeadedesigns.com/board/topic/193176-smd-tool-map-new-november-2014/ Build log https://www.stevemeadedesigns.com/board/topic/197217-reeds-03-tahoe-hat-sqaq-singer-xs-shca-cockbox-80prs/?page=32 Link to comment Share on other sites More sharing options...
cLos510 Posted May 25, 2015 Author Report Share Posted May 25, 2015 Ok thanks! And yes the alt is connected to the front battery but not the 2nd Link to comment Share on other sites More sharing options...
reedal Posted May 25, 2015 Report Share Posted May 25, 2015 You can either connect the second battery straight to the alt or the front battery to back battery. Either way, won't make a difference. Unless it's 14/16V alt and battery. But if everything is 12V, it's more or less whatever makes it easier for you to run the shortest amount of wire. Just make sure your wire can support the 320A the alt puts out for the distance of the run you make, and don't forget to fuse SMD Tool Map https://www.stevemeadedesigns.com/board/topic/193176-smd-tool-map-new-november-2014/ Build log https://www.stevemeadedesigns.com/board/topic/197217-reeds-03-tahoe-hat-sqaq-singer-xs-shca-cockbox-80prs/?page=32 Link to comment Share on other sites More sharing options...
firebirdude Posted May 25, 2015 Report Share Posted May 25, 2015 Soooo if the two batteries aren't connected to each other and one's not connected to the alt......how the fuck did you think this was going to work? LOL Link to comment Share on other sites More sharing options...
cLos510 Posted May 25, 2015 Author Report Share Posted May 25, 2015 Ok cool sounds good Link to comment Share on other sites More sharing options...
cLos510 Posted May 25, 2015 Author Report Share Posted May 25, 2015 Soooo if the two batteries aren't connected to each other and one's not connected to the alt......how the fuck did you think this was going to work? LOLhaha yea well i just put the alternator in and the two batteries were already in the car so i really didnt kno exactly how everything aas guna work clearly lol Link to comment Share on other sites More sharing options...
RooTxBeeR Posted May 25, 2015 Report Share Posted May 25, 2015 Wait, you have a battery just sitting in the car, without any connections? On 11/20/2012 at 8:54 PM, AMI CUSTOMS said: Turned mine up today at a light, guy next to me his steering wheel started moving and he looked over at me like I was a magician lol. On 5/9/2012 at 8:45 PM, skittlesRgood said: fuck the plating. look at what the main metal used is. you could buy unicorn blood plated terminals but if its just covering up dog shit, whats the point On 4/10/2013 at 12:26 PM, mrd6 said: I'll admit, half way through sanding that fiberglass in the rain and cold while I was all itchy I was definitely starting to question why i was doing this haha Soon To Be '04 Ford Escape US Alternator 280A Hairpin D4800 Under the Hood (6) XP3000's in Rear 1/0 SHCA & XS Power 4 runs to back TORK2 kit from Tony @ CE Auto Supply Pioneer DEH-80PRS DD AW6.5 (2) per door *Tweeter Unkown* DD SS4a & C3d (2) SCV4000 @ .5Ohm (2) 15" Sundown Zv5 Link to comment Share on other sites More sharing options...
MrBalll Posted May 25, 2015 Report Share Posted May 25, 2015 Wait, you have a battery just sitting in the car, without any connections? That's kind of what it sounds like. I'm still very confused on what kind of setup you have going on here. Care to elaborate? Link to comment Share on other sites More sharing options...
hoit Posted May 25, 2015 Report Share Posted May 25, 2015 OP Reedal completely sealed this one up bro...do exactly as he suggested, and you're super-fly! 2007 Chevy Aveo Ls sedan 2 Sundown Xv2 on scv4k @ .5 ohm 2 pair RE XXX 6.5 components on sax200.4 @ 2 ohm Big Three, Three runs 1/0 power from front to back, 1 ground front to back Two runs ground from rear bank to chassis XS power d3100 upfront, 3 Odyssey 2150s in bank Singer 220 amp alt Link to comment Share on other sites More sharing options...
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