Hey guys!(adsbygoogle = window.adsbygoogle || []).push({});

I'm working on a little side-project and basically i need a compact source of a burst of electricity, so naturally the high-school physics in my head said "capacitor." Now i just don't know what kind to get! I need the maximum amount of energy to store (joules) and a quick discharge (low ESR right?). So i'm thinking Supercapacitor but there are so many capacitors and calculating .5(F)(V^2) for all of them to figure out which best suits me is daunting, so does anyone have any experience with these sorts of things and have any recommendations? Like i said, i just need it to give one high-powered burst of electricity. Also, how do you boost capacitors power? Series or Paralell? I think it's in series but i'm not 100%. Currently the two best ones i can find are the Illinois supercapacitor w/ Capacitance of 400F and Voltage of 2.7 (does this also mean discharge voltage?) w/ ESR of .003.

Size, mass and shape are of a great concern, otherwise this would be easy! I'm trying to keep size and mass on the small side and shape=cylindrical. The Illinois one is 35mm in diameter which is on the big side but it puts out energy! I also saw a Cooper Bussmann Aerogel Supercapacitor B-Series w/ C=50F, V=2.5volts, ESR=.025 and diameter of 18mm. Its not as strong as the other one but it's about half the size and almost a fourth of the mass.

Thanks for any advice you can give!

Edit:

I may have misspoken when i threw around terms like power and energy, i need a capacitor that gives off the Most Current in the shortest amount of time.

Thanks again!

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Which capacitor is right for me?

**Physics Forums | Science Articles, Homework Help, Discussion**