Like smashing down a green juice after your workout, the 21W Solar Charger from Companion will keep your devices powered up and ready to hit their next session while you’re on the go.

This 21-watt charger is constructed using A-grade monocrystalline silicon cells that are regarded for their high efficiency and has copper cell backing plus a weather-resistant ETFE lamination. It has a dual USB output with a maximum of 2.9 amps per hour each or 4 amps per hour when combined. Choose the most optimal position for sun exposure by either using the hanging loops or angling towards the rays with the inbuilt stand.

Folded up it's smaller than an A4 piece of paper and only 45mm thick, so the 21W Solar Charger from Companion can easily tuck into your sports bag and will help keep your tech charged up to track your fitness.

• Suitable for charging tablets, phones and USB devices
• Dual USB to charge 2 devices at once
• High-efficiency solar cells
• A-grade monocrystalline silicone
• 2.9A per hour max. USB output
• 6.6V at max. power
• Weather-resistant ETFE lamination
• Copper cell backing
• 900D polyester case
• Inbuilt stand for maximum output
• Hanging loops
• Mesh accessory pocket
• 21% cell efficiency