Joshdashef Posted September 26, 2019 Report Share Posted September 26, 2019 Open ended question. Are Supercaps and lithium (LifePo4) safe to run in a daily driver? My current idea is to delete my underhood battery and turn it into a distribution center essentially. Then 86 my AGMs and replace it with a 25 aH / 45aH limitless lithium (Limitless seems like it has acquired JY power, so new JY batteries are probably unlikely). I was thinking of running a super cap to ease the load of starting the car on the lithium, would it be better to place this nearest to the amplifier (between amplifier and lithium) or have it upfront in the stock location? Some background on car: Civic 08 / Daily driver / Amps: RF 600x4 + DB AAK 4000.1D powering a SP4 15 dual 1 SMD Tool Map (2022): https://www.stevemeadedesigns.com/board/topic/220267-smd-tool-map-2022/ My Port Size Calculator (in progress): https://www.stevemeadedesigns.com/board/topic/217087-port-size-calculator-in-progress/ Common Port Walls for a Slot Port: https://www.stevemeadedesigns.com/board/topic/217076-common-port-walls-why-it-matters-to-your-box/?tab=comments#comment-3240313 Link to comment Share on other sites More sharing options...
BassMunky Posted September 26, 2019 Report Share Posted September 26, 2019 Good question Shakin not Stirred....my buildhttp://www.stevemead...ngle-cab-build/412 CVX And put a sealed enclosure in your trunk cut a hole in your deck and call it ported Link to comment Share on other sites More sharing options...
kalilac619 Posted September 26, 2019 Report Share Posted September 26, 2019 I did 6 banks and a 40ah juice box lithium for almost 2 years without issues 2000 Suburban 6 runs of 2/0 12 timpano audio mids,6 timpana audio tweets and 1 timpano compression horn per door 8 banks of blue Maxwells + 260ah of Yin Long LTOs 2 370 Amp Autotech Alts mids amps 2 Crescendo Skyway 3ks Tweet amp Crossfire 2000.4 sub amp: 4 Crossfire XT 8ks Subs: 8 18 in Crossfires in a 4th order Best Scores at events… 161.6@38hz DBdrag sealed on the dash… 162.54 outlaw…161.14 Meca headrest Link to comment Share on other sites More sharing options...
Joshdashef Posted September 26, 2019 Author Report Share Posted September 26, 2019 Just now, kalilac619 said: I did 6 banks and a 40ah juice box lithium for almost 2 years without issues How did you have your batteries setup? No upfront battery, Jbox and caps in rear? SMD Tool Map (2022): https://www.stevemeadedesigns.com/board/topic/220267-smd-tool-map-2022/ My Port Size Calculator (in progress): https://www.stevemeadedesigns.com/board/topic/217087-port-size-calculator-in-progress/ Common Port Walls for a Slot Port: https://www.stevemeadedesigns.com/board/topic/217076-common-port-walls-why-it-matters-to-your-box/?tab=comments#comment-3240313 Link to comment Share on other sites More sharing options...
Mike4068 Posted September 27, 2019 Report Share Posted September 27, 2019 If you plan to run agm and lithium together, know that lithium rests at a higher voltage and the agm will be drawing off it kind of negating the lithium benefits except for the weight. Link to comment Share on other sites More sharing options...
corey0928 Posted October 1, 2019 Report Share Posted October 1, 2019 Supercaps charge and discharge at a fast rate so they aren't great for continuous loads. And lithium does not do well underhood or in harsh environments without a cooling and/or heating system included. If either of those bother you then sick with agm. I've been following some development with super/ultra caps we are doing at my work and there it's becoming a hard sell for the OEMs so I've been hesitant to recommend them in long term applications. Link to comment Share on other sites More sharing options...
kalilac619 Posted October 1, 2019 Report Share Posted October 1, 2019 On 9/25/2019 at 9:45 PM, Joshdashef said: How did you have your batteries setup? No upfront battery, Jbox and caps in rear? Correct no front battery with jbox and caps rear 2000 Suburban 6 runs of 2/0 12 timpano audio mids,6 timpana audio tweets and 1 timpano compression horn per door 8 banks of blue Maxwells + 260ah of Yin Long LTOs 2 370 Amp Autotech Alts mids amps 2 Crescendo Skyway 3ks Tweet amp Crossfire 2000.4 sub amp: 4 Crossfire XT 8ks Subs: 8 18 in Crossfires in a 4th order Best Scores at events… 161.6@38hz DBdrag sealed on the dash… 162.54 outlaw…161.14 Meca headrest Link to comment Share on other sites More sharing options...
kalilac619 Posted October 1, 2019 Report Share Posted October 1, 2019 Real magic happens when you get enough Alt power and ditch batteries and run strictly caps 2000 Suburban 6 runs of 2/0 12 timpano audio mids,6 timpana audio tweets and 1 timpano compression horn per door 8 banks of blue Maxwells + 260ah of Yin Long LTOs 2 370 Amp Autotech Alts mids amps 2 Crescendo Skyway 3ks Tweet amp Crossfire 2000.4 sub amp: 4 Crossfire XT 8ks Subs: 8 18 in Crossfires in a 4th order Best Scores at events… 161.6@38hz DBdrag sealed on the dash… 162.54 outlaw…161.14 Meca headrest Link to comment Share on other sites More sharing options...
LT.Smoke Posted October 1, 2019 Report Share Posted October 1, 2019 On 9/27/2019 at 1:58 PM, Mike4068 said: If you plan to run agm and lithium together, know that lithium rests at a higher voltage and the agm will be drawing off it kind of negating the lithium benefits except for the weight. Don't do this...Delete AGM/Lead acid and run lithium...Trust me I lost an Alternator this way Team MaxRetribution Si Vis Pacem Parabellum Id rather be judged by 12 than carried by 6 Bowhunting- Life Begins and Ends at Full Draw Bowhunting Team Fatal Trajectory Hunt Team http://www.stevemeadedesigns.com/board/topic/49335-sick96vtecaccords-t-line-build/?hl=sick96vtecaccord << Accord Build http://www.stevemeadedesigns.com/board/topic/68498-smokedout08impalas-tline-build/?hl=+sick96vtecaccord << Impala T-line build Rebassed.com for all your music needs 👌 Link to comment Share on other sites More sharing options...
LT.Smoke Posted October 1, 2019 Report Share Posted October 1, 2019 I've been running my entire car off a 45ah Limitless for quite awhile including feeding juice to my system as well so yeah it works Team MaxRetribution Si Vis Pacem Parabellum Id rather be judged by 12 than carried by 6 Bowhunting- Life Begins and Ends at Full Draw Bowhunting Team Fatal Trajectory Hunt Team http://www.stevemeadedesigns.com/board/topic/49335-sick96vtecaccords-t-line-build/?hl=sick96vtecaccord << Accord Build http://www.stevemeadedesigns.com/board/topic/68498-smokedout08impalas-tline-build/?hl=+sick96vtecaccord << Impala T-line build Rebassed.com for all your music needs 👌 Link to comment Share on other sites More sharing options...
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