HHR Ed Posted November 19, 2013 Report Share Posted November 19, 2013 Can somebody tell me what's wrong with these, or are they usually this cheap? http://www.ebay.com/itm/12-Maxwell-BCAP0010-2600F-2-5V-Boostcap-Capacitors-/131051504342?pt=LH_DefaultDomain_0&hash=item1e834742d6 They were used in a hybrid bus and are untested. So no guarantee they work properly. Ed Lester ShowtimeSPL Host Showtime Electronics Video MarketingMy old Build Loghttp://www.stevemead...08/#entry511451http://www.youtube.com/showtimespl 5 time dB Drag Finalist Last ride 2007 HHR, current dB 153.5 and bass race 149.4 dB. 153.0 dB on music New Ride, 2008 HHR SS. Build under way. Loudest score ever = 171dB 2009 dB Drag Racing, North American Points Champion Link to comment Share on other sites More sharing options...
Bump4life Posted November 19, 2013 Report Share Posted November 19, 2013 I did a write up here on super caps and a little testing. No balancing circuits used though http://www.stevemeadedesigns.com/board/topic/178148-bump4lifes-supercapacitor-overview-and-testing/ 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 Link to comment Share on other sites More sharing options...
Bump4life Posted November 20, 2013 Report Share Posted November 20, 2013 I have an ~850 farad cap bank. You know how with voltage drop it's kind of all or nothing? Either you are holding 14v+ (or whatever your alt charges at) or you drop to 13v or lower. Capacitors store energy. Not in the same way batteries do though. Batteries create energy though a chemical reaction - of which only takes place below the batteries "resting voltage". Capacitors store a difference in electrons - think like static electricity. This means they can absorb/release power at ANY voltage. So in between your alternator's charging voltage and your battery's voltage potential (13v and below) - this is where caps shine. They basically act like a giant stabilizer. It cushions your drops, absorbs your peaks. I have a video of them which I'll post below. Been meaning to get a second one with the VM-1 that is just impressive results. 2 banks on how much power? a cross fire 8k? lol 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 Link to comment Share on other sites More sharing options...
banginhummer Posted November 20, 2013 Author Report Share Posted November 20, 2013 snowdrifter i believe has to banks, but he is also running xs p0wer 14volt battery, and charging above 16volts. Like you said @bump4life, higher voltage, equals higher capacity *Hummer H3* HeadUnit Pioneer AVH-X4600BT Mids and Highs 8-CT Sounds Pro 8" 8ohm 4-CT Sounds Pro Tweeters Amplifiers 1-CT Sounds 125.4 1-CT Sounds 60.4 1-CT Sounds 7000.1 Electrical 3-Runs of 1/0 CT Sounds 8-XS Power D3100 3-Iraggi 300 amp Alternators Subwoofers 4-SQ Hdc3 15" Subwoofers (Soon to be 4 15" Ct Sounds EXO) Link to comment Share on other sites More sharing options...
Bump4life Posted November 21, 2013 Report Share Posted November 21, 2013 snowdrifter i believe has to banks, but he is also running xs p0wer 14volt battery, and charging above 16volts. Like you said @bump4life, higher voltage, equals higher capacity dirrrr 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 Link to comment Share on other sites More sharing options...
AA98hoe Posted November 21, 2013 Report Share Posted November 21, 2013 I run 14v batts an 14 black caps an 12 blue ones.. Love my caps TEAM DC AUDIO VEHICLE:98 chevy tahoe 2wd 3-4 drop HEADUNIT:alpine 9886 PREAMP:arcaudio FRONT STAGE:4-6 1/2s selinium,DD component set and 4-selinium tweeters in each door KICKPANELS:jl audio 5 1/4 REAR DOORS: dd components 6 1/2s HIGHS AMPS:zapco 750.2 on front doors,zapco an another 750.2 on kicks and rear doors SUBS:4-ascendant audio 18s with 5 spiders in a custom box built by KINGSUV SUB AMP: 2-dc7.5s ALTERNATORS: 3-mechmans 1- 425comp, 1-smd spec350, 1-270 with adj voltage harness on custom dc bracket WIRE:10-runs 0g front to back BATTERIES:6-d1400s TL results:157.1 at 38hz and 156.8 at headrest score @37hz. STATE AND NATIONAL RECORD IN MECA S5. Link to comment Share on other sites More sharing options...
Wicks Posted November 21, 2013 Report Share Posted November 21, 2013 snowdrifter i believe has to banks, but he is also running xs p0wer 14volt battery, and charging above 16volts. Like you said @bump4life, higher voltage, equals higher capacity yes but caps charge and discharge at a linear rate. so it doesnt matter what voltage they are used at. results should be same in a perfect world at any voltage as long as draw is the same Linear..? http://hyperphysics.phy-astr.gsu.edu/hbase/electric/capchg.html Charging current asymptotically goes to zero as it charges. Then it exponentially discharges. Energy stored in a cap = 0.5 * C * V^2 Since voltage is squared, energy skyrockets as you increase voltage. This post sent with 100% recycled electrons. 2004 BMW M3Mechman 280A 2 - XS Power XP30001 - XS Power D375 500F of Maxwell SuperCaps (soon to be 1000F) iPadMini2Dash mounted O-scopeAudison bitOne (Remote DRC MP) Highs Amp - PPI Art A404 Hertz HSK130 (HSK165 waiting...) DC Audio DC9.0K 2- DC Audio XL12m2LEGAL - 147.3dB @ 41Hz OUTLAW - 150.2dB @ 45Hz OUTLAW - 145.7dB @ 30Hz JUNE 2014 SOTM WINNER 2014 COLORADO PEOPLE'S CHOICE WINNER SOTM BUILD:http://www.stevemeadedesigns.com/board/topic/141656-wicks-e46-m3-build-bass-turbo-button-and-a-big-new-addition/page-68#entry2802026 Link to comment Share on other sites More sharing options...
SnowDrifter Posted November 21, 2013 Report Share Posted November 21, 2013 snowdrifter i believe has to banks, but he is also running xs p0wer 14volt battery, and charging above 16volts. Like you said @bump4life, higher voltage, equals higher capacityyes but caps charge and discharge at a linear rate. so it doesnt matter what voltage they are used at. results should be same in a perfect world at any voltage as long as draw is the sameLinear..? http://hyperphysics.phy-astr.gsu.edu/hbase/electric/capchg.html Charging current asymptotically goes to zero as it charges. Then it exponentially discharges. Energy stored in a cap = 0.5 * C * V^2 Since voltage is squared, energy skyrockets as you increase voltage. Now now, lets not blow OPs mind quite yet ~~~~~~~~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...
Bump4life Posted November 21, 2013 Report Share Posted November 21, 2013 learn me lol guess i was thinking wrong thing. makes sense though. linear. dirrrr, i have much to learn still 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 Link to comment Share on other sites More sharing options...
barney91 Posted November 21, 2013 Report Share Posted November 21, 2013 Can you guys show some examples of balancing circuits Alpine 9884 RF T2 comp set up front The Epicenter 2x RF T10001bd 2x Sundown sa-15 t-line Big 3 Smd DD-1 Link to comment Share on other sites More sharing options...
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