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good video. currently my amp does not even get hot and i have bumped for hours straight before? and my voltage does not drop below 13 maybe 12.8 on really low notes. can anyone explain that? is there any way to see if alternator is affected?

If you want to do it right, you need to upgrade your alternator. The alternator is what's actually feeding your system, the batteries simply buffer for it. And.. did you say you're running like a complete 250A on a stock 100A alt?? Wtf? If I were you, I'd save the money from loading your car with batteries and just upgrade to a 270 or 300A alternator, and then you'll be fine with probably one single battery(even the one under the hood!).

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imo 12.8 is not that bad especially for running an amp at .5 really the batt ais doing the job adding a bigger batt or more wont really help because your batt is resting at 12.8 so in theory it cant get much better unless you do an ho alt to keep up the voltage higher.

Edited by cal
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I have a 3000 watt amp wired to .5 running off 1 XS Power D3100 and a stock 105 amp alt, 60 amps at idle. I never see any significant voltage drops or dimming and I've been doing this same set up or more a few years. A HO Alt is always a good choice for an upgrade, but start off with your batteries and if you need more then look into an alt. Some like to think that adding more batts isn't going help and will strain your Alt, but thats wrong. More good quality AGM batts will put less strain on your alt, and for a stock alt thats a good thing. Nathan from XS Power posted the same thing in the XS Power area on CACO.

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I have a 3000 watt amp wired to .5 running off 1 XS Power D3100 and a stock 105 amp alt, 60 amps at idle. I never see any significant voltage drops or dimming and I've been doing this same set up or more a few years. A HO Alt is always a good choice for an upgrade, but start off with your batteries and if you need more then look into an alt. Some like to think that adding more batts isn't going help and will strain your Alt, but thats wrong. More good quality AGM batts will put less strain on your alt, and for a stock alt thats a good thing. Nathan from XS Power posted the same thing in the XS Power area on CACO.

i agree with you on the fact that batts definetly help out alt but only when voltage is 12.8 or below not to keep voltage above. if op is looking to keep voltage from dropping below 12,8 he needs to upgrade his alt even if he adds a d3100 it wont help stay above the resting voltage of the batt correct? and for his setup as of now he is not dropping to a level that is a concern especially at full tilt on a hard bass note.im no expert by any means but i have done a a few experiments and we did one on a daily car 175 amp alt 1 kinetik hc 1800 and a ddm3 wired to .5 ohm before rise no problem the amp ran cool and voltage was 13.6 average. we then wired the same setup to .25 and things really got interesting we were able to run the system daily with out the amp running hot or going into protect and the voltage did drop at full tilt to 11.8 so we add another 105 amp batt and problem solved . no this is only a temporary bandaid he has to be carefull to monitor the resting voltage and sometimes he is below 12.6 so we use an c-tek charger. bottom line is he needs an alternator up grade even if we add more batts the reserve wont go above 12.8 it will just last longer. now this was an experiment i dont recomend running an amp below .5 ohm but since he does not care and knowes the risk that even tho the amp is taking it is causing more wear on the amp.

Edited by cal
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thanks for all the input guys. i miss typed and am aware that current is amps. so overall would adding a kinetik HC1400 or a xs power D5100 be a good idea to add to possibly keep my voltage on bass notes higher. and i am aware that it is only a bandaid but im not going to shows and bumping all day. it is a daily driver. thus i bump anywhere from 10 minutes to maybe an hour sometimes. and for those longer runs o dont have bass constantly on. i listen to a wide variety of music. in addition, that max 230 A is a max rating and only 150 max is bass amperage. the rest is highs only. maybe you need to read up on how electronics work Mike. also all of my amps never get hot and can rest my face on all of them comfortably even after hour of play time

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so overall would adding a kinetik HC1400 or a xs power D5100 be a good idea? would it be enough power?

Buyer/Seller Feedback Thread: http://www.stevemead...5015-bump4life/
MB C220 153 Trunk Car Build Log: http://www.stevemead...d/#entry1840136
MB C280 Ipad Dash SQ Build Log: http://www.stevemeadedesigns.com/board/topic/194484-bump4lifes-new-benz-tony-c-relay-kit-pictures-ce-electric-audison-front-stage-installed/
My SPL Log: http://www.stevemead...__fromsearch__1

BMW M340 xDrive

Stock, for now. Corner Load 10" maybe soon. But does 10s in the 1/4...
Best Scores out of a trunk
153.0 sealed legal full tilt clamped 5524 @ 42 hz
154+ windows down, 155+ kick

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