rocking.that.eclipse Posted January 19, 2017 Report Share Posted January 19, 2017 So a buddy of mine was tired of having a heavy bank of batts in his VW so he decided to go with an xs 36k spl this year. We hooked up the lithium in the back and also left his d3400 upfront. Went out and tested hoping for some better voltage also.... well it was worse.... We started with clamping the alternator (6 years old and may have needed a refresh) and it was clamping 85 amps with the amp pulling a load. Messaged Mr. Singer and a few others and he said to go get a load tester and try the test again. In the testing we found that the alt was making 85 amps at idle when it was claimed to make 200. Also then we put a load on it and it put out 95 even under a load of 300 amps. We were ready to pull out the alternator and then someone suggested to disconnect the lithium and try it. We did that and alt was able to put out 175 at idle.... Messaged scotty to see what he thought and he told us to do the same and disconnect the d3400 and see what the alt clamped. Did that and it clamped 175 amps. So we decided to ditch the d3400 this year but before we pulled it we decided to clamp the run that went from the lithium to the d3400 and we found that under a load the lithium was actually feeding the 3400 before the alternator was. We found the alt was still putting out the 85 amps but the lithium was pushing amperage to the d3400 (120 amps of current) Anyone have a good explanation for this? Just trying to gain some knowlede. We plan on pulling d3400 and putting it in my truck and put a bank or 2 of caps in a d3400 case up front in the engine bay in his car Quote Link to comment Share on other sites More sharing options... 625 2.1k
mrd6 Posted January 19, 2017 Report Share Posted January 19, 2017 Did you load test the d3400 after pulling it out? Quote My Build Log: http://www.stevemead...-sundown-power/ Team NorthWestSPL Link to comment Share on other sites More sharing options... 507 1.8k
Kyblack76 Posted January 19, 2017 Report Share Posted January 19, 2017 What was your voltage like at all this testing? Is it down? Quote SMD SUPER SELLER The Burban Build Blazer Build sold Acura trunk build sold Link to comment Share on other sites More sharing options... 12.8k 24.5k 219
rocking.that.eclipse Posted January 19, 2017 Author Report Share Posted January 19, 2017 51 minutes ago, mrd6 said: Did you load test the d3400 after pulling it out? Yes 3400 was tested and its good. It's like 4 months old Quote Link to comment Share on other sites More sharing options... 625 2.1k
rocking.that.eclipse Posted January 19, 2017 Author Report Share Posted January 19, 2017 31 minutes ago, Kyblack76 said: What was your voltage like at all this testing? Is it down? Originally he had 2 xp3000s off of a sundown 6k and was seeing 12.4 full tilt with the d3400 hooked up and the lithium he was seeing 11.5 full tilt. we are going to test this weekend with no d3400 just the lithium Quote Link to comment Share on other sites More sharing options... 625 2.1k
hdorre Posted January 19, 2017 Report Share Posted January 19, 2017 (edited) hunter had a similar result when he added his winston. his front batt was outputting 80a while his winston was outputting ~800a. due to the agm's lower resting voltage, it would drain the lith when the car was off, so there was no reason to keep the batt up front. he wound up bypassing it. its been like 3 months, no issues. as far as the alt not outputting full power under load, i cant help ya. as much as scottie hates his guts, this may be a question for someone like Travis Young of JY. Edited January 19, 2017 by hdorre Quote On 5/8/2011 at 7:38 PM, Kranny said: On 5/8/2011 at 7:35 PM, 'Maxim' said: It hurts me inside when I read stuff like this and remember you're 15 LMFAO so true Mitsubishi 3000GT (Old Build) Headunit: Pioneer 80PRS Frontstage: (2) McLaren Audio MLT-2 Tweeters & (4) PRV Audio MR Series Neo 6.5" Mids Substage: 4 15" Hybrid Subs - Tantric Motors & Sundown Softies Amps: Banda 2.4D Amp (Tweets), American Bass VFL 350.4 (Mids), and (2) Ampere 3800s Electrical :Singer 260A Alt & JY Power Lithium 2005 Chevy Colorado Ext Cab Headunit: Pioneer 80PRS Frontstage: 4 PRV 700Ti Tweets & 6 10" Delta Mids on 3000wrms Substage: 6 Fi BTL 18s in a 4th Order Walkthrough on 3 Wolfram 4500s Electrical: Singer "390" and JY Power My Official Feedback Thread Link to comment Share on other sites More sharing options... 2.8k 12.7k 9
SnowDrifter Posted January 19, 2017 Report Share Posted January 19, 2017 Lithium and lead/acid are going to have different resting/usable voltages. Based on what you described I suspect the lithium rests a bit higher than the d3400 Where are you load testing/reading voltage from? Quote ~~~~~~~~SAY NO TO PHOTOBUCKET~~~~~~~~ Snow's DD-1 tracks here: https://www.stevemeadedesigns.com/board/topic/167433-snows-dd-1-tracks/ My take on OFC vs CCA: https://www.stevemeadedesigns.com/board/topic/110381-things-that-piss-you-off-in-the-car-audio-world/?do=findComment&comment=2461444 Link to comment Share on other sites More sharing options... 9.2k 14.6k 139
hdorre Posted January 19, 2017 Report Share Posted January 19, 2017 1 hour ago, SnowDrifter said: Where are you load testing/reading voltage from? bend over. 2 Quote On 5/8/2011 at 7:38 PM, Kranny said: On 5/8/2011 at 7:35 PM, 'Maxim' said: It hurts me inside when I read stuff like this and remember you're 15 LMFAO so true Mitsubishi 3000GT (Old Build) Headunit: Pioneer 80PRS Frontstage: (2) McLaren Audio MLT-2 Tweeters & (4) PRV Audio MR Series Neo 6.5" Mids Substage: 4 15" Hybrid Subs - Tantric Motors & Sundown Softies Amps: Banda 2.4D Amp (Tweets), American Bass VFL 350.4 (Mids), and (2) Ampere 3800s Electrical :Singer 260A Alt & JY Power Lithium 2005 Chevy Colorado Ext Cab Headunit: Pioneer 80PRS Frontstage: 4 PRV 700Ti Tweets & 6 10" Delta Mids on 3000wrms Substage: 6 Fi BTL 18s in a 4th Order Walkthrough on 3 Wolfram 4500s Electrical: Singer "390" and JY Power My Official Feedback Thread Link to comment Share on other sites More sharing options... 2.8k 12.7k 9
Karkov Posted January 20, 2017 Report Share Posted January 20, 2017 IN4 Wisdom......... 1 Quote 2007 Chevy Tahoe (SOLD) 12 ~ FI Audio X series 10" w/BP option 2 ~ DC Audio 5.0K @0.67 3 ~ DC Audio 5.0K @1.0 2 ~ PPI 3 way sets (not installed yet) 1 ~ RF T400-4, 1 ~ RF T600-2, 1 ~ RF T600-4 4 ~ CT Sounds 5.25" Strato comps (rear fill only) 1 ~ XS Power D4800 1 ~ XS Power D3400 8 ~ XS Power XP3000 160 stock alt, Mechman 370 Elite, 185 DC Power 320+ Sq. Ft. Sound Deadener Pioneer AVH-X5500BHS Youtube: https://www.youtube.com/user/knfjdkghjudfhsgkjdhf/videos?sort=dd&view=0&shelf_id=0 Link to comment Share on other sites More sharing options... 3.4k 8.9k 9
rocking.that.eclipse Posted January 20, 2017 Author Report Share Posted January 20, 2017 16 hours ago, hdorre said: hunter had a similar result when he added his winston. his front batt was outputting 80a while his winston was outputting ~800a. due to the agm's lower resting voltage, it would drain the lith when the car was off, so there was no reason to keep the batt up front. he wound up bypassing it. its been like 3 months, no issues. as far as the alt not outputting full power under load, i cant help ya. as much as scottie hates his guts, this may be a question for someone like Travis Young of JY. We isolated batteries so that his lithium would only be connected to battery system when car was turned on. This is done to help the battery resting voltage. Didn't wanna drain the lithium down to 12.8 when its happiest at 13.4 Quote Link to comment Share on other sites More sharing options... 625 2.1k
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