JuiceBox vs. NSB vs. SuperCaps. - Car Audio Classifieds!
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  #1  
Old 09-12-2014, 08:12 PM
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Default JuiceBox vs. NSB vs. SuperCaps.

I know you guys like to see huge draws and gear beat to death, but I decided to keep things sane in this one. A 2k amp and a single group 31 is pretty "real world". And if you take the alternator into account, so are these amperage draws.

The video explains a lot, but it's long. As in, 11:22 long. I apologize for the length, but there was no way to do it with any less video, really. But for those that don't want to watch an 11 minute video, I'll just list the results below.

In case you're wondering why I only charged the caps to 12.6, it was suggested that I only charge them to the batteries' resting voltage to answer the question, "are caps really louder than batts?". The results may surprise you.

Contestants...



Full video...

JuiceBox vs NSB vs SuperCaps - YouTube


The vid also explains the method, but in case you don't watch it...

Did three back to back to back burps with a little rebound time in between, just like in the Group 31 roundup, but this time I didn't have a charger on them. (2) Tantric HD 12's in my truck. 30hz. Amperage draw on the burps was ~ 120A.

Also did a 30 second music run with a charger running. Charger was set to 40A, but clamped around 20A for the batts. 30A for the caps. The larger draw for the caps is also a small scale illustration of the added stress that caps *may* put on your alternator.

Results...

JuiceBox Banana
- 148.7
- 148.6
- 148.6
(with charger. single burp) - 149.0

NSB AGM-31
- 148.8
- 148.8
- 148.8
(with charger. single burp) - 149.1

Caps (one bank of six blue. 12.6 starting voltage)
- 148.7
- 148.4
- 148.1
(with charger. 3 burps in a row)
- 149.6
- 149.6
- 149.6

30 second music runs
JuiceBox - 147.1
NSB - 147.1
Caps - 147.0
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Old 09-12-2014, 08:41 PM
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Great test!
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Old 09-12-2014, 09:44 PM
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Wow...so the bank of 6 caps did 3 burps consistently higher than neither of those batteries? Nice!
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Old 09-15-2014, 10:34 PM
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As always, thank you!

So my take away from this, as a daily guy with no drive to compete, is that if you have the charging support to sustain cap voltage, they are damn near identical power wise to batteries. One of you smart fellas chime in and let me know if I'm wrong.

So hypothetically if I could get a cap bank for the roughly the same price as a g31 and could keep it charged up, I'd have very similar output in a far more compact, light weight package?

That was what I had thought, but this seems to give some evidence to that.
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Old 09-15-2014, 11:31 PM
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Quote:
Originally Posted by bcollin89 View Post
As always, thank you!

So my take away from this, as a daily guy with no drive to compete, is that if you have the charging support to sustain cap voltage, they are damn near identical power wise to batteries. One of you smart fellas chime in and let me know if I'm wrong.

So hypothetically if I could get a cap bank for the roughly the same price as a g31 and could keep it charged up, I'd have very similar output in a far more compact, light weight package?

That was what I had thought, but this seems to give some evidence to that.
That's correct. But preferably, for daily, you will want some sort of battery support as a safety net.
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Old 09-16-2014, 01:55 PM
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Originally Posted by TaylorFade View Post
That's correct. But preferably, for daily, you will want some sort of battery support as a safety net.
I'm on it boss.
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Old 09-16-2014, 03:01 PM
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There were also rule changes made in meca as far as cap usage goes. Last year u could run caps w no batteries. This year you also had to have a battery in line if you were in a class lower than m4 (i think it was the cutoff) One of my teammates (will penn) won the trunk 2 world championship last year and never even started his car
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Old 09-16-2014, 03:23 PM
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TFade...great job.

Ok...can you post basic pricing on all 3 if possible?..mainly pricing on the caps! Also is it not feasible to burb the other batteries 3x in a row "charged"?
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Old 09-16-2014, 07:58 PM
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Quote:
Originally Posted by Inferno3436 View Post
TFade...great job.

Ok...can you post basic pricing on all 3 if possible?..mainly pricing on the caps! Also is it not feasible to burb the other batteries 3x in a row "charged"?
I don't think the batteries can charge fast enough even on an alt so a charger would be out of the question. Burping the batts 3x would only show a drop in output if voltage drops.
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Old 09-20-2014, 11:08 PM
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Whats the next amp test you will be doing?
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