Texas Tech Posted February 6, 2007 Report Share Posted February 6, 2007 How do you wire two batteries, one under teh hood and one in the trunk. Do they have to be the same brand? A diagram would be great. Do you have to fuse every single power wire? I have heard something about solenoid isolators or something i dont know, but you dont have to use one? Any information on this would be good Quote Baylor University Accounting Link to comment Share on other sites More sharing options...
Guest MegaloManiac Posted February 6, 2007 Report Share Posted February 6, 2007 wire them in parralel diagram in a sec to sum it up, wire all the "+" together and wire the "-" together. Quote Link to comment Share on other sites More sharing options...
andym85 Posted February 6, 2007 Report Share Posted February 6, 2007 same brands wouldnt hurt things. people say that if u have different batteries with different capabilities then the weaker one might eventually drain the stronger one, but i wouldnt hesitate to run two different batts. as far as fusing, some people dont fuse at all, although i wouldnt recommend that unless u are aware of the risks and are trying to get that extra .1db for comps or something. i always fuse. u need to fuse the positive run withing 12"-18" of the first battery and the same from the second battery to the amp (unless the back batt to the amp is a short run). there is no need for isolators really, dont worry about them. Quote i likes me some audio stuff... Link to comment Share on other sites More sharing options...
dmanson Posted February 6, 2007 Report Share Posted February 6, 2007 if possible run the same batteries and do fuse after the 1st and before the each additional battery. Quote 2-DC 15XLM2 D.7s 1-DC 5K amp (1) XS Power D6500(UNDERHOOD) and (1) XS3000(REAR) 3 runs 1/0ga for power and 2 runs of 1/0ga for negative. (2)-RFT165s components, ...... 4 separate 1 inch tweetersRF T600-2(fronts) Punch 450.4(rear) Audiocontrol 3.1. DC power 260amp alternator w/MLA Module Link to comment Share on other sites More sharing options...
Texas Tech Posted February 7, 2007 Author Report Share Posted February 7, 2007 Hey megalo i didnt quite understand the part on the diagram pointing to battery 2's negative. It says use negative from first battery or ground to chassis. I dont understand that part. Quote Baylor University Accounting Link to comment Share on other sites More sharing options...
sean 371 Posted February 7, 2007 Report Share Posted February 7, 2007 Hey megalo i didnt quite understand the part on the diagram pointing to battery 2's negative. It says use negative from first battery or ground to chassis. I dont understand that part. You answered your own question. You can either run from the second battery's negative post to a chassis ground or to the negative post on the first battery. Quote A couple links to some box builds: Tahoe Box 1, Tahoe Box 2, Nissan Titan, VW GTI, Mini-Bump, Hummer H2, Ford F-150 My own car builds (current setup --- under construction): Overall Thread, Kickpods, Dash, Back Doors Subwoofer Wall Link to comment Share on other sites More sharing options...
Guest MegaloManiac Posted February 7, 2007 Report Share Posted February 7, 2007 what he said man. as long as u get that neg grounded you'll be straight. i made that diagram awhile ago for some other kid and i didnt want to confuse him. Quote Link to comment Share on other sites More sharing options...
Texas Tech Posted February 7, 2007 Author Report Share Posted February 7, 2007 o so basically you have to connect the batteries and one of them has to be grounded sweet thanks for the info. Quote Baylor University Accounting Link to comment Share on other sites More sharing options...
Texas Tech Posted February 7, 2007 Author Report Share Posted February 7, 2007 If i jsut replace my battery right now and get a yellow top and then an additional yellow top to put in my trunk, should the wire connecting the batteries be run through the firewall and through teh car or under the car. Quote Baylor University Accounting Link to comment Share on other sites More sharing options...
AP Zoutes Posted February 7, 2007 Report Share Posted February 7, 2007 your choice Quote Link to comment Share on other sites More sharing options...
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