eazy Posted June 25, 2008 Report Share Posted June 25, 2008 (edited) Is my Duralast Gold battery hurting my voltage? I have an Excessive Amperage 250A alternator, one Duralast Gold Size 65 battery under the hood wired in parallel with two Kinetik HC1800 batteries. I have the 3 batteries connected - to - to - and + to + to + (I have two runs of 1/0 going the length of the car), but only the Duralast under the hood is grounded to the chassis. My voltage driving around is usually 13.8V at the amplifier (with the stereo turned down all the way, but on). I took my car to Advance today. I unhooked the two 1/0 runs at the Duralast that connect it to the Kinetiks. They tested the battery and came up with 12.59V and 958CCA. I kept it disconnected from the Kinetiks and I had the guy test one of the Kinetiks. The Kinetiks were still wired in parallel with eachother when he did the test, but not grounded to the chassis because only the Duralast is. The test gave 13.06V and 1095CCA. I wish I disconnected the Kinetiks from eachother and had him test them separately, but they were closing in like 2 minutes. What can you guys tell me based on these tests? Thanks a lot. Edited June 25, 2008 by eazy Quote 1999 Mercury Grand Marquis LS Build Thread Pioneer DEH-P5000UB (4) Infinity Kappa 682.7CF's Sundown Audio SAE-1000D Sundown Audio SAX-100.4 Fi Q15 with BP power in 4 cubes @ 32Hz (2) Kinetik HC1800's Duralast Gold Group 65 Excessive Amperage 250A alternator Knukonceptz Kolossus 1/0 gauge Elemental Designs eDead v1SE² Link to comment Share on other sites More sharing options...
eazy Posted June 26, 2008 Author Report Share Posted June 26, 2008 Anyone? Quote 1999 Mercury Grand Marquis LS Build Thread Pioneer DEH-P5000UB (4) Infinity Kappa 682.7CF's Sundown Audio SAE-1000D Sundown Audio SAX-100.4 Fi Q15 with BP power in 4 cubes @ 32Hz (2) Kinetik HC1800's Duralast Gold Group 65 Excessive Amperage 250A alternator Knukonceptz Kolossus 1/0 gauge Elemental Designs eDead v1SE² Link to comment Share on other sites More sharing options...
dmanson Posted June 26, 2008 Report Share Posted June 26, 2008 try grounding the amps in the back if you can. 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...
eazy Posted June 26, 2008 Author Report Share Posted June 26, 2008 try grounding the amps in the back if you can. The amplifiers are grounded on the battery negative of one of the Kinetiks. Did you mean ground the Kinetiks? I have 1/0 connecting all the negatives together. Quote 1999 Mercury Grand Marquis LS Build Thread Pioneer DEH-P5000UB (4) Infinity Kappa 682.7CF's Sundown Audio SAE-1000D Sundown Audio SAX-100.4 Fi Q15 with BP power in 4 cubes @ 32Hz (2) Kinetik HC1800's Duralast Gold Group 65 Excessive Amperage 250A alternator Knukonceptz Kolossus 1/0 gauge Elemental Designs eDead v1SE² Link to comment Share on other sites More sharing options...
Noobtastic14 Posted June 26, 2008 Report Share Posted June 26, 2008 back batteries are also grounded to frame right? and the paint should be sanded off around the crimp ring -Drew Quote I am a United States Military Arts and Crafts Professional. Sand it off, Paint it on. uhoh_45 said: dont be a pussy P give the jeep to drew Link to comment Share on other sites More sharing options...
mrrairai Posted June 26, 2008 Report Share Posted June 26, 2008 I was gonna ask if the back batteries were grounded also. Quote Member since 25 Jun 2006 2011 Yukon DenaliCustomLightz 4300K HID RetrofitEsky TailsEsky Third BrakeEsky 22sEsky Appliques Link to comment Share on other sites More sharing options...
profundus-sanus Posted June 26, 2008 Report Share Posted June 26, 2008 the front battery will kill the resting voltage of the kintiks... which will technically take power away from them. you should go back w/ 1 kinketik and see what kinda cca it does. Quote Link to comment Share on other sites More sharing options...
dmanson Posted June 27, 2008 Report Share Posted June 27, 2008 i got a run of 1/0 negative running back to my kinetik HC800 and i didn't ground the battery in the back but yet i have both of my amps grounded to the frame. 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...
MECHMAN Posted June 27, 2008 Report Share Posted June 27, 2008 The votlage is different because Kinetiks are AGM batteries. The resting voltage of an AGM battery is usually around 13.1V, wheras a flooded type battery (like your duralast) rests at around 12.6v. This doesn't cause a problem persay, but your resting voltage will never be as high as if you were to run all AGM batteries. Quote 1-888-MECHMAN www.Mechman.com [email protected] Link to comment Share on other sites More sharing options...
eazy Posted June 27, 2008 Author Report Share Posted June 27, 2008 Okay sweet. Thanks a lot guys. Yeah my back batteries are not grounded to the frame. I have a battery negative run going from the rear batteries to the front battery. The front battery is grounded to the frame. The amps are grounded to the rear battery negative. So would I be better off to get rid of the Duralast and get like an HC800? Quote 1999 Mercury Grand Marquis LS Build Thread Pioneer DEH-P5000UB (4) Infinity Kappa 682.7CF's Sundown Audio SAE-1000D Sundown Audio SAX-100.4 Fi Q15 with BP power in 4 cubes @ 32Hz (2) Kinetik HC1800's Duralast Gold Group 65 Excessive Amperage 250A alternator Knukonceptz Kolossus 1/0 gauge Elemental Designs eDead v1SE² Link to comment Share on other sites More sharing options...
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