Five Of These In Series?

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"superCap" bank as 12v car start battery
i think a few of our members have posted/boasted about having them in their car or truck

nice thing is cold or hot same power available, no chemical reaction slow down

Connecting them in parallel would provide only a 2.7V DC breakdown voltage. Probably not anywhere near high enough for many applications in an RV 12V electrical system -> depending of course upon what the reason was for Mex mentioning use of them.

You would want to connect them in parallel. :) 5 x 1500 = 7,500 in parallel.

Dupe. Please remove.

A more interesting question would be: After you put five (or six) of these together in a series string ... how many of those string-sets would it take in parallel with each other so as to be able to use that bundle in an RV in place of batteries?

As I understand it, a capacitor bank can be drawn down to zero an infinite number of times with no effect on it's performance over time. In other words ... a perfect electrical storage medium. You just gotta have room in your RV to fit all those farads to make it between charge ups. :)

MEXICOWANDERER wrote:
Where do all the joules end up hiding when connected in series?

More gap between plates.

Let's say the gap on one is 0.1, hook 5 in series and the gap is 0.5. Bigger gap, smaller capacitance.

Caps in series compute like resisters in parallel.
Caps in parallel compute like resisters in series.

I kinda thought your formal training was a little lacking from your statement on de-sulfating batteries, your above question may confirm that.

BTW, The US-Navy Submarine folk (ie the people with the largest wet-cell batteries in the world) disagree with your theory on de-sulfating.

C = 1500 F, 2.7V

i = C * dV/dt

i * dt = C * dV

Six in series:

i * dt = (1500F / 6) * 2.7V * 6
i * dt = 4050 As

i * dt = 4050 As / 3600 s/H = 1.1 AH

Six in series gives you 1.1AH. Nothing to write home about. What do they cost; perhaps $200 for 6???

Where do all the joules end up hiding when connected in series?

WOW 1500 FARADS!

Of course 5 in series would be...300 Farads, still a LOT of energy.