After a week of charging electronics with this panel, I found that it's comparable (but not quite the same) as plugging my electronics it into the wall. While bigger and heavier than I would like the panel to be, it far exceeded my expectations. The SunVolt charged an iPad in one hour, and my cell phone in 45 minutes. These devices charged in same amount of time it takes when plugged into the electrical outlet. It won't charge a laptop, but it will charge just about anything that requires 5.5V or less--including digital cameras, Bluetooth headsets, GPSes, mobile hotspots, and tablets.