I bought this panel to augment a nomad 13 panel. I purchased a Sherpa 50 kit in mid November in which I received the nomad 13. I found that given just a little cloud cover the 13 wouldn't get the 50 charged up with the shorter days. By chaining the two together I can charge up the 50 in record time even with some cloud cover.
This review was written in the old system and had content requirements that are different than reviews written today.