Thanks for the replies,
Here is a little more info on my project. I have a flashlight which is powered by a super capacitor (like the "faraday flashlight"). I want to be able to check the charge of the capacitor and indicate that charge with a LED or some indicator. I like the idea of checking the charge with a multimeter, but in this sutuation a multimeter would not always be on hand.
The makeup of the capacitor isnt important, Im just using the super capacitor in the flashlight as an example.
How would a basic comparator circuit look for this application?
Thanks,
JΩ