NeedMorePower Posted October 9, 2017 Report Share Posted October 9, 2017 Do I have this correct? (refer to attached diagram) I will be putting in 2 XS Power D5100 batteries to help feed my Sundown SCV-4000D (running 1 ZV5 12) Up front I have a D3400 + a 260A Singer Alternator.. Big three has been done (fused between alt and batt), and 2/0 AWG cabling runs from the front to the trunk. All 100% OFC. Will I need to run a ground from the rear bank back to the front batt? Or should I be fine running ground to chassis as long as it's a good ground? A 260A alt should't have any issues keeping up the extra batteries should it? I don't slam my sounds 24/7, but only for about 15-25% of the time while cruising so there should be plenty of time for charging while driving. Just want to verify that i have everything proper on paper before I get to installing it. Link to comment Share on other sites More sharing options...
MrSkippyJ Posted October 9, 2017 Report Share Posted October 9, 2017 How close are the back 2 batteries? I would consider fusing between those depending on how far apart they are. I think 4K is close to the point where a dedicated ground becomes helpful. F150: Stock 2019 Harley Road Glide: Amp: TM400Xad - 4 channel 400 watt Processor: DSR1 Fairing (Front) 6.5s -MMats PA601cx Lid (Rear) 6x9s - TMS69 Link to comment Share on other sites More sharing options...
NeedMorePower Posted October 9, 2017 Author Report Share Posted October 9, 2017 They are right next to each other. The run between them is very short. Now, I have a single run of 2/0 going to the back from the front battery, should that be enough? Then starting at the 1st battery in the back I have a dual run going on and into the amp using a dual input adapter. The grounding point that I chose is pretty good so far, but will definitely consider the run to the front if needed. Link to comment Share on other sites More sharing options...
MrSkippyJ Posted October 10, 2017 Report Share Posted October 10, 2017 I wouldn’t worry about fuse between the batteries then. Single run might be enough, get a good voltage meter and see. If it drops too much you made need another run! F150: Stock 2019 Harley Road Glide: Amp: TM400Xad - 4 channel 400 watt Processor: DSR1 Fairing (Front) 6.5s -MMats PA601cx Lid (Rear) 6x9s - TMS69 Link to comment Share on other sites More sharing options...
ChevyBoy95 Posted October 10, 2017 Report Share Posted October 10, 2017 14 hours ago, MrSkippyJ said: How close are the back 2 batteries? I would consider fusing between those depending on how far apart they are. I think 4K is close to the point where a dedicated ground becomes helpful. It depends on the vehicle. I have teammates that have tested it (guys clamping 30k+ & 10k+) and adding full length grounds gained them nothing over their frame grounds. Best Score to Date : 160.5 dB Outlaw (47Hz)[4 XM 15's & 2 Taramps Bass 12k's] BL : http://www.stevemeadedesigns.com/board/topic/147800-chevyboy95s-4-15s-7krms-wall-1533-db-on-half-power/YouTube: http://www.youtube.com/hitemwiththeflex/ Link to comment Share on other sites More sharing options...
WalledSonic Posted October 10, 2017 Report Share Posted October 10, 2017 34 minutes ago, ChevyBoy95 said: It depends on the vehicle. I have teammates that have tested it (guys clamping 30k+ & 10k+) and adding full length grounds gained them nothing over their frame grounds. Truck/SUV with a real frame or a unibody car? Chevy Sonic Wall (4) 15's on 10k Build Log https://www.stevemeadedesigns.com/board/topic/209412-2015-chevy-sonicwall4-15s10klithiumlarge-case-hairpin-us-alts/ (4) Fi SP4 15's | (2) Ampere 5Ks | Active! | Arc KS600.2 & KS125.2mini | CDT Silk Domes | Silver Flute 8s | 240Ah JY | US Alts Jeep Wrangler JK (4) 8's in a 4th Order Build Log https://www.stevemeadedesigns.com/board/topic/209841-shadow-2016-jeep-wrangler-jk4th-order4-8sdc-35klarge-case-hairpin-us-alts/ IG @walledsonic Link to comment Share on other sites More sharing options...
8ten8 Posted October 10, 2017 Report Share Posted October 10, 2017 The front to back fuse rating is too large. 150a-175a would be more appropriate imo. Link to comment Share on other sites More sharing options...
ChevyBoy95 Posted October 10, 2017 Report Share Posted October 10, 2017 2 hours ago, WalledSonic said: Truck/SUV with a real frame or a unibody car? both real frame SUV and a truck. Best Score to Date : 160.5 dB Outlaw (47Hz)[4 XM 15's & 2 Taramps Bass 12k's] BL : http://www.stevemeadedesigns.com/board/topic/147800-chevyboy95s-4-15s-7krms-wall-1533-db-on-half-power/YouTube: http://www.youtube.com/hitemwiththeflex/ Link to comment Share on other sites More sharing options...
WalledSonic Posted October 10, 2017 Report Share Posted October 10, 2017 6 hours ago, ChevyBoy95 said: both real frame SUV and a truck. OP mentioned 'trunk' so i'd assume unibody car. D'Amore and Candella did the ground test in a unibody and mentioned that a single run of 1/0 had more voltage drop than the unibody, but a second run would result in less voltage drop than the unibody (in the case if the test car, a nissan altima i believe) Chevy Sonic Wall (4) 15's on 10k Build Log https://www.stevemeadedesigns.com/board/topic/209412-2015-chevy-sonicwall4-15s10klithiumlarge-case-hairpin-us-alts/ (4) Fi SP4 15's | (2) Ampere 5Ks | Active! | Arc KS600.2 & KS125.2mini | CDT Silk Domes | Silver Flute 8s | 240Ah JY | US Alts Jeep Wrangler JK (4) 8's in a 4th Order Build Log https://www.stevemeadedesigns.com/board/topic/209841-shadow-2016-jeep-wrangler-jk4th-order4-8sdc-35klarge-case-hairpin-us-alts/ IG @walledsonic Link to comment Share on other sites More sharing options...
rocking.that.eclipse Posted October 10, 2017 Report Share Posted October 10, 2017 OP if you have a frame ground to that as close as you can to the batts. This is audio, more of something isn't going to hurt. You will not have any issues if you ground to frame and front to back. I personally like the idea of tying all of your electrical components directly together with a run front to back but that's just my OCD. I don't think that if you have a true frame you'll notice any difference Link to comment Share on other sites More sharing options...
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