I have the guide 10, the escape 150 battery, light-a-life, usb luna light, and the 30 watt briefcase solar panels. I live and hike around the southwest. Plenty of sun to charge anything. When hiking I use the guide 10 on my backpack to charge a lithium battery. I use the battery to charge my iphone and power the USB light at night. When camping for a week at a base camp I use the escape 150, 30 watt solar panels, and the light-a-life hanging light. I have been using the goal zero products for last three years and love them. The products are tough and can take a beating. The only problem is that the guide 10 cannot charge a iphone directly.