I'm surprised that you would like such a thing. I assumed you would rather look at real numbers, real amps in or out, real voltage, real cumulative Ahrs etc. The Midnite Battery Meter is a nifty thing in some circumstances, but for a guy who does the nuts and bolts engineering of his own power production, I have to admit, that I'm a little shocked that you are satisfied to look at a single LED on a graduated scale, with an unknown algorithm, and feel satisfied with that information.