Which outdoor solar energy source is recommended

The Grecell 100W Portable (60.3 Wh), Allpowers SPo12 100W Panel (59.2 Wh), Dokio 110W 18V Portable Kit (57.6 Wh), and BioLite Solar Panel 100 (53.6 Wh) also performed well in our direct sunlight solar generation tests. While these panels didn't perform quite as well as the top performers, they still generated a high amount of charge over one hour.

The BigBlue SolarPowa 100 is an affordable and efficient solar panel. The Dokio 110W 18V Portable Kit is one of the least expensive contenders we tested and by far the most affordable model that still works well as a solar panel. We didn't have high hopes for this solar panel due to the low price point.

The Jackery SolarSaga 100 continues to be our favorite solar panel for camping. Our testers found this 100-watt panel is easy to use, lightweight, and effective in full and partial sun. It is more affordable than many competing models, and it works better than those models.

The highest measured output panels in peak sun were the Renogy 100W Foldable (65 watts) and BigBlue SolarPowa 100 ETFE (64 watts). Snapshots of voltage and watt output should only be considered in relation to a larger picture of solar panel efficiency that most strongly weighs total power generation over a set period of time.

The EcoFlow consistently performs well in most conditions but really stands out on variably cloudy days. You should expect at least a 50% drop in efficiency from your solar panel on a cloudy day. The Renogy 100W also performed well in indirect light, generating 28.8 watt-hours in one hour under the Big White Sheet.

We test each panel's charging abilities on sunny days and overcast conditions, and we've discovered that not all 100-watt solar panels are equal. The best solar panel for camping is the Jackery SolarSaga 100. It impressed our testers with its lightweight and efficient energy conversion.