21W Folding Solar Charger - Three-Section USB Panel

Product Overview

The 21W folding solar charger pairs three monocrystalline panel sections with USB outputs for an outdoor charging setup. Its folding format provides an alternative to carrying a fixed-size solar panel, while the integrated handle makes the panel easier to move between locations. Open the three sections in direct sunlight before connecting compatible USB equipment.

Portable Design & Key Features

The black panel face and fabric-backed rear form a compact foldable assembly. Reinforced corner holes offer attachment points, and the rear output module keeps the USB connections together rather than spreading them across the panel face.

• 21W rated panel power with monocrystalline cells.
• Three folding sections with ETFE front lamination.
• 23.1% cell efficiency.
• Two USB-A outputs on the rear connection module.
• Integrated carry handle and reinforced corner holes.

Details & Specs

These specifications describe the panel and its physical format. The panel power rating and cell efficiency do not guarantee a particular USB charging speed for every device.

USB Charging & Outdoor Use

Check your device's USB charging requirements and use a suitable cable before making the connection. The presence of a USB port does not establish support for every fast-charging protocol. Place connected electronics out of direct sunlight where possible, while leaving the solar collection area fully exposed.

Output changes with sunlight intensity, panel angle, temperature and shading. Reposition the panel as the sun moves and avoid covering individual sections. Keep the output module and plugs dry, disconnect devices before folding, and protect the cell surfaces from sharp objects during transport.