Keep compatible electronics charging in the sunshine with the Renogy E.FLEX 21W Portable Solar Panel. Its foldable design packs into a backpack, tote or suitcase, while an adjustable nylon kickstand helps you position the panel toward the sun.

Unfold it during a sunny campsite break or a day outdoors, connect a compatible device and use available sunlight for charging away from a wall outlet. Actual charging speed depends on sunlight, panel position and your device's requirements.

Key Features

• 21W rated panel power: A compact solar charging option for compatible everyday electronics. Rated panel power is not a guarantee of power delivered to a connected device.
• iSolar charging technology: Designed to optimize charging and help protect connected devices from overheating.
• Automatic charging recovery: Auto-optimization is designed to resume charging when sunlight returns after an interruption.
• Adjustable nylon kickstand: Helps position the panel for available sunlight.
• Foldable construction: Packs away for camping, travel and other outdoor activities.
• Water-resistant nylon: A rugged outer material for outdoor use. Water resistance does not mean the panel or its connections can be submerged.

Specifications & Options

• Product: Renogy E.FLEX 21 portable solar panel
• Rated panel power: 21W per panel
• Listed energy conversion efficiency: 22–25%
• Support: Adjustable nylon kickstand
• Construction: Foldable, water-resistant nylon
• Available quantity options: 1 pcs or 2 pcs

Select your quantity option before ordering. The 21W rating applies to each panel; the two-piece option does not establish that the panels can be electrically combined.

Listed Single-Panel Package Contents

• 1 × Renogy E.FLEX 21 portable solar panel
• 1 × 23.6 in (60cm) Micro USB cable
• 1 × USB-A to USB-C cable
• 2 × carabiners

The supplied package list describes one panel and its accessories. Accessory quantities for the two-piece option are not specified separately.

Charging Tips

Place the unfolded panel in direct, unobstructed sunlight and adjust its angle as conditions change. Shade, clouds and panel temperature can affect output. Use a cable compatible with your device and confirm its charging requirements before connecting. An included USB-A to USB-C cable does not establish USB-C Power Delivery support.