Charging a Storm 2 with the Renogy E.FLEX 50 Solar Panel
So, I picked up a Storm 2 battery pack , for the capacity, the screen showing charging / discharge details, and because it can be charged via a DC port. I figured it would be a good companion for the Renogy E.Flex 50 solar panel. The panel puts out 21.6V and 3.04A to an open circuit, and has a nominal output of 18V at 2.77A (49.86W). In reality , of course, I usually see the panel top out in the low 30W range, almost always around 17V with the available current dictating the watts transmitted: 17.23V 1.76A 30.3W (12/15 9:25 a.m. direct sun) 13.96V 0.03A 00.4W (12/14 12:13 p.m. shade) 17.12V 1.00A 17.1W (12/14 10:11 a.m. direct sun) 12.12V 1.02A 17.4W (12/17 10:45 a.m. thin cirrus cloud cover) 17.06V 0.62A 10.5W (12/17 10:01 a.m. thin cirrus cloud cover) Into a full battery pack, I was seeing higher voltages but minimal current, with correspondingly reduced wattage, e.g.: 1 9.51V 0.04A 00.7W (12/20 9:52 a.m. direct sun). This should work with the Storm 2 pack, which purportedly