07-09-2013, 07:55 PM
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#1 (permalink)
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Master EcoModder
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Replace your car battery with capacitors!
.
Replace your car battery with capacitors!
So, would you like to shed 25-30 lbs. of dead weight from your car...???
If so, check this out.
DIY 12V BoostPack.
Think you need large capacitors to do the job ?
Think again...
Mini BoostPack 12V Capacitor Car Battery Hybrid
Author's website.
12V BoostPack
I'm going to do this... 
>
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Other popular topics in this forum...
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07-09-2013, 08:46 PM
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#2 (permalink)
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Master EcoModder
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I wonder what the long term effect on his car computers will be.
If this works so well, I have to wonder if race cars and or track cars are already into this technology.
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07-09-2013, 08:55 PM
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#3 (permalink)
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Master EcoModder
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God help him if those capacitors are made in China.
regards
Mech
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07-09-2013, 09:54 PM
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#4 (permalink)
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Master EcoModder
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Quote:
Originally Posted by Old Mechanic
God help him if those capacitors are made in China.
regards
Mech
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Maxwell Technologies (world class)
United States
Switzerland
Germany
China
Maxwell Technologies Company Overview Ultracapacitors, Microelectronics and High Voltage
Leader in Ultracapacitors
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07-09-2013, 11:31 PM
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#5 (permalink)
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Master EcoModder
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Thanks red  |
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07-10-2013, 12:29 AM
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#6 (permalink)
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Exceptional Member
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Did I miss where he said what the capacitors cost in the first vid?
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07-10-2013, 12:43 AM
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#7 (permalink)
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EcoModding Lurker
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Capacitors have self-discharge.
Couple that with the fact that the caps don't have a lot of amp-hour capacity, and your car will undoubtedly pull a tiny trickle of current to keep your clocks and settings in order...
So unless you plan to charge the car after it sits a few hours (which will undoubtedly result in a totally dead capacitor bank), you'll need a battery.
And then you've defeated everything.
Neat idea though as a boost option. If you could get 6 seconds of cranking out of a bank of them, it would be nice to have in winter.
2000+ cranking amps for the win 
Edit: Also without inter-cell balancing, a single cell could (theoretically) be overcharged by the cars alternator, resulting in a nasty explosion (or just the cap venting, YMMV).
Last edited by RiceCake; 07-10-2013 at 01:30 AM..
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07-10-2013, 01:11 AM
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#8 (permalink)
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Cyborg ECU
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Quote:
Originally Posted by Lbar
Did I miss where he said what the capacitors cost in the first vid?
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Yes, he did say. The smaller pack was built with 6 capacitors that cost, IIRC, something like $10 each. The first pack, with bigger and cheaper capacitors, I can't recall what eh said they cost (or if he said  )
Quote:
Originally Posted by RiceCake
Capacitors have self-discharge.
Couple that with the fact that the caps don't have a lot of amp-hour capacity, and your car will undoubtedly pull a tiny trickle of current to keep your clocks and settings in order...
So unless you plan to charge the car after it sits a few hours (which will undoubtedly result in a totally dead capacitor bank), you'll need a battery.
And then you've defeated everything.
Neat idea though as a boost option. If you could get 6 seconds of cranking out of a bank of them, it would be nice to have in winter.
2000+ cranking amps for the win
Edit: Also without inter-cell balancing, a single cell could (theoretically) be overcharged by the cars alternator, resulting in a nasty explosion (or just the cap venting, YMMV). |
When you watch the videos, you'll see how he tests and answers these problems... the "mini-boost pack" lasts a whole weekend in one test, cranking the car after three nights without a new charge from the ALT. For longer duration, he ultimately hybridizes the "mini boost pack" with a small battery.
Really quite cool. But I would think that the benefit in weight-loss causes a problem for FE by loading on the alternator, which will have to charge the capacitors pretty often. This might be a fun way to attempt to copy Mazda's capacitor charging regenerative braking system.
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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.
Last edited by California98Civic; 07-10-2013 at 01:34 AM..
Reason: needed to correct confusing "gain in weight" phrase in last paragraph
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07-10-2013, 01:18 AM
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#9 (permalink)
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EcoModding Lurker
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Quote:
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When you watch the videos, you'll see how he tests and answers these problems... the "mini-boost pack" lasts a whole weekend in one test, cranking the car after three nights without a new charge from the ALT.
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Just gonna borderline disclaimer: don't believe everything you see on YouTube.
I wouldn't mind seeing further independent testing regardless. |
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07-10-2013, 03:55 AM
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#10 (permalink)
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Not Doug
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Quote:
Originally Posted by RiceCake
Just gonna borderline disclaimer: don't believe everything you see on YouTube.
I wouldn't mind seeing further independent testing regardless.
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Heh. Today my roommate mentioned someone calling a radio show and mentioning the research that he did on YouTube. The host asked "Wait, what?"
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