Setup to charge a 7S Lipo battery that I built to be a small portable system for camping and such.First, I will go through the good.The controller seems to have decent tracking speed, and is very accurate. True MPPT, and has a small active cooling fan on the heatsink for the mosfets. Display is bright, and for the most part informative. You can get pretty much any aspect of the three DC inputs 'and outputs.The bad:In order to set up the custom user profile, you have to get the RS4985 to usb cable. This is pretty dumb because you could set it up right there on the screen.No way to dim the screen, and just keep it on. I like to be informed all the time about the status of my gear.Active cooling may be a little inadequate because there is nothing to help cool the inductor. The inductor is being cycled at a high rate, and will produce some hysterisis losses on top of just current flowing.There was no manual included with mine, but I was able to find the manual online after searching high and low.