Foldable solar phone chargers with built-in USB ports: open the panel in direct sun and plug a phone, power bank, headlamp or GPS unit straight in, with no charge controller or power station in between.
Pick by port first, then by weight
The watt rating tells you how big the panel is, not what reaches your phone. Charging speed is set by the port and by the light falling on the panel, so start with the outputs you need.
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10 W and 11 W: the lightest class. The 11 W solar charger weighs 198 g with a 5 V / 2.4 A USB output; the 10 W two-section charger is 420 g with a fabric rear pouch and attachment loops.
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21 W and 28 W: two devices at once. The 21 W three-section charger has two USB-A outputs; the 28 W four-section panel has two USB ports and folds to 20 × 15.2 cm at 540 g.
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30 W with USB-C: the 30 W three-section charger pairs USB-A and USB-C (each rated 5 V / 3 A) with rear supports at 40°, 50° and 60°.
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45 W with USB-C PD: the 45 W four-section charger carries a 25 W USB-C PD3.0 port, a 15 W USB-C port and an 18 W USB-A QC3.0 port, for phones that fast-charge over PD and for tablets.
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80 W USB panel: the 80 W eight-section panel puts USB-C and USB-A ports on a much larger collecting surface (2.67 kg) for base camp rather than the trail.
What to expect from solar USB charging
Port ratings are the maximum for each port, not a combined output, and real charging current drops with cloud, shade and a low sun angle. A steady routine is to charge a power bank from the panel during the day and the phone from the power bank at night. The solar phone charging guide covers PD, cable choice and placement.
USB charger or power-station panel?
USB chargers top up devices and power banks. To refill a portable power station, use a panel with a DC or MC4 output from solar panels for power stations. Every folding model is listed in portable & foldable solar panels.
Frequently asked questions
Which solar phone charger is best for hiking?
Weight decides: the 11 W charger at 198 g and the 10 W charger at 420 g are the carry-all-day options. The foldable solar charger comparison for hiking matches wattage to trip length.
Can a USB solar charger charge a laptop?
Only through a USB-C PD port, and only if the laptop accepts PD input at that power. The 45 W charger's PD3.0 port is rated 25 W; the 100 W six-section panel lists USB-C PD up to 45 W. Check your laptop's PD input requirement first.
Do you make custom or private-label solar chargers?
Yes. Stock models can be ordered in quantity, and custom wattage, fold pattern, ports and packaging are handled as an OEM project; see custom foldable solar panels and the USB solar panel sourcing guide.
