21W Portable Folding Foldable Waterproof Solar Panel Charger Mobile Power Bank for Phone Battery Charger Dual USB Port

ST CHARGING: 21W Foldable Solar Panel Phone Charger with more than 18.5% conversion efficiency and output peak current is 3500mAh totally for dual USB port.

SMART TECHNOLOGY: Built-in intelligence chip can identify different device and change the input current according to your device.

MOST COMPATIBLE: For almost devices like phone, tablet and so on devices with USB port. WATERPROOF: PET polymer surface and outer PVC wrap can protect solar panel unexpected rainy or fog, just do not put it in water.

HIGHLY PORTABLE: Hang it on your backpack and make full use of solar energy to charge during trips, and folded it to fit in your backpack for convenient carry.

Specification: Material: PET solar panel + PVC
Conversion efficiency: =18.5% Power: 21W 21W Foldable Solar Panel Phone Charger Output voltage: 5V±0.2V Output current: 3500mA (peak current) Output port: Dual USB Unfold size: 65 * 29cm / 25.5 * 11.4in 21W Foldable Solar Panel Phone Charger Fold size: 29 * 17cm / 11.4 * 6.6in 21W Foldable Solar Panel Phone Charger Weight: 697g / 1.5lb Package weight: 806g / 1.7lb

Package List: 1 * Solar Charger