What is the best solar panel generator that can be charged by solar panels when in use

and when not in use? The best solar panel generator that can be charged by solar panels when in use and when not in use is the Goal Zero Yeti 1400 Lithium Portable Power Station. This solar power generator utilizes quality lithium-ion batteries to offer reliable and safe power and is perfect for camping and mobile RV use. It offers up to 1,420 watt-hours (1,400 watt output) of clean and silent solar energy, perfect for powering lights and devices such as laptops, refrigerators, and more. Plus, you can charge it while off-grid with a compatible solar panel to keep it topped up while away from an AC power outlet.