I found it a lot easier to compare dry cell's with fuel cell's as they are both the simplest on the list. I had some stuff lying around somewhere, but I can't find it, so I can't help you with info...but, I found information on both was relatively easy to find by searching google. There's heaps of stuff out there...there was a really good site by a fuel cell manufacturer that supplies NASA with their fuel cells. If you can find that, you're on your way.