Charge a smartphone in four hours on a sunny day with the E.FLEX21 Portable Solar Panel from Renogy. The three-section panel measures 18.7 x 11.4" when open, but packs down to an easily stowed 11.4 x 6.2" when not in use.
Boasting a conversion efficiency rate of up to 25%, the panel has two USB ports (5V @ 4.2A total) for plugging in devices such as phones, tablets, and action cameras. An adjustable kickstand helps position the panel where it can best catch the sun's rays. The auto-optimization function automatically reconnects the panel when the sunlight returns after charging is interrupted by clouds or other obstruction. Technology by iSolar optimizes charging while preventing your device from overheating.
- 21-watt output with two USB ports for charging electronics
- Up to 25% conversion efficiency
- iSolar technology optimizes charging, protects connected devices from overheat damage
- Auto-optimization function automatically reconnects after charging is interrupted by passing clouds
- Adjustable kickstand for best positioning
- Measures 18.7 x 11.4" open, 11.4 x 6.2" folded
Charge Times (Ideal Conditions)
- Smartphone: 2-4 hours
- Tablet: 4-6 hours
- Action camera: 2-4 hours