Sunslice Fusion Flex 18 Portable Solar Panel

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Durable, flexible, and powerful—an ideal companion for outdoor adventures

Sunslice says: 

The Fusion FLEX 18 is a 18 Watts flexible foldable solar charger, equipped with completely new, highly resistant and flexible CIGS solar cells. The CIGS solar technology has a 16.5% efficiency and is protected by a scratchproof and water-resistant ETFE coating. It can therefore be used in rough outdoor situations as it is unbreakable. The Fusion FLEX 18 integrates a double USB port junction box with charge indicator. Its foldable table (A4) size makes it a very practical and compact solar charger as it fits in any backpack and is very powerful, charging a standard phone in only 1h30.

Our Verdict

The Sunslice Fusion Flex 18 Portable Solar Panel provides 18 watts of portable energy. Weighing 376g, it remains lightweight enough to carry comfortably yet powerful enough to charge most small devices in less than two hours of sunlight. Its flexible CIGS solar cells, coated with a scratch-resistant and water-resistant layer, are as robust as they are effective, making the panel an ideal choice for rough, unpredictable outdoor conditions.

Using a similar Sunslice model (the two-panelled version), I found it best when paired with a power bank to store solar energy throughout the day. By evening, there was always enough power to charge my phone, watch, and satellite communicator. The Fusion Flex 18’s thoughtful design includes carabiners and elastic bands, making it easy to attach to backpacks, tents, or bikes for optimal exposure.

Compact yet capable, the Fusion Flex 18 is built for outdoor enthusiasts who need reliable power on the move or at a base camp.

– Reviewed by Ultralight Outdoor Gear

Features

• Compatible with: Phone, Tablet, Powerbank, GPS, Smartwatch, Speakers, Torchlight, Satellite Phone, Action Camera, USB Devices
• Includes: 2 x Carabiners, 2 x Elastic Bands 

Specifications

• Weight: 376g
• Output : 2 x USB-A 18W : 5V/2.7A
• Total Max Output : 18W
• Solar Charging Status : 1 x LED Indicator
• Dimensions – Closed : 288 x 200 x 3 mm
• Dimensions – Open : 288 x 590 x 1 mm
• Attachment Points : 4

Material & Construction

• Solar Power : 18 Watts
• Technology : CIGS 16.5% Flexible Solar Cells