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Solar Charger 21w Portable Solar Panel Dual USB Ports
RRP:
£76.99
Special Price
£43.99
Overview
Portable 21W solar panel charger with dual USB ports and Smart IC charging, foldable and weatherproof for charging smartphones and tablets.
21W max power output
Dual USB output ports
Output: 5V/3.8A max each port
Monocrystalline silicon solar technology
Smart IC charging technology
Rugged, weatherproof build
Foldable for storage and handling
Unfolded: 29.52 × 11.22 × 0.1 in
Folded: 11.22 × 7.48 × 1.18 in
24-month warranty
Product Overview Set the foldable panel out for direct solar exposure and use the two USB outputs to power compatible devices while you’re on the move.
The Power Panel Portable Solar Phone Charger allows you to Charge your SmartPhone, Tablet on the move, in super fast time.
✓ 21W High-Efficiency Solar
✓ Dual-Port Charging
✓ Weatherproof & Rugged
✓ Ultra-Portable Foldable
✓ 2-Year Guarantee
Never Run Out Of Charge with 21 watts of Solar Power! The 21 watt Solar Charger Panel is Rainproof has dual USB ports, and comes with a 2 Year Guarantee. Is very easy to use can be folded away and has buckles for rucksacks, bags etc
Device Compatibility
Universal Solar Charging: Our 21W panel works with virtually all USB devices (5V/3.8A max total output). Smart IC technology ensures optimal charging.
Popular Supported Devices
Apple: iPhone 8-15, iPad Air/Mini/ProSamsung: Galaxy S10-S24, Note/Tab SeriesGoogle: Pixel 3-8, Pixel TabletOther: Switch Lite, Kindle, Bluetooth Headphones
Supported Charging Standards
USB Power Delivery (PD)
Quick Charge 3.0
Standard 5V/2.1A charging
Apple Lightning
Will My Device Work?
Your device is compatible if it:
Charges via USB/Type-C cable
Doesn't exceed 3.8A total draw
Uses standard protocols
Compatible With Devices From:
Apple Samsung Google
OnePlus Xiaomi Oppo
Vivo Realme Huawei*
Sony Nokia Motorola
+ 100+ others
*Fast charging requires compatible devices and direct sunlight. Cloud cover may reduce output.
Advanced Solar Technology
Thanks to SUNPOWER solar arrays, benefit from a total solar conversion ratio up to 23.5%. Our highly efficient solar cells convert up to 21.5-23.5% of solar power into free energy, leading the industry in conversion efficiency.
Smart Charging Technology
The advanced Smart IC technology detects all connected devices' input and distributes current output accordingly for up to 3.8A overall output.
Dual-Device Charging
Two USB output sockets with Smart Solar technology allow you to charge multiple devices simultaneously. The 3.8A of power can be shared between both ports.
Versatile Power Solution Used to quickly charge your mobile device including all Iphones, handhelds, smart phones, tablets, Samsung, HTC, Nokia in fact anything that can be charged via a USB port!
Portable Design
A lightweight (0.65kg) portable device that will be no nuisance during your most adventurous treks. Hook it up to your backpack, tent, or up the nearest tree for optimal solar exposure.
Weather-Resistant
High-wear PVC waterproof fabric to outlast whatever the weather throws at it. The rugged construction ensures reliable performance in various weather conditions.
Mounting Options
Features practical buckles for rucksacks and bags, with multiple attachment points for versatile positioning.
Complete Package Contents
Main Components
1 x 21W Foldable Solar Panel Charger
Additional Features
2 x Mounting Buckles
Comprehensive User Manual
Technical Specifications Specification Details Model Number RGM-21W Max Power Output 21W Output Ports 2× USB (5V/3.8A Max each) Solar Technology Monocrystalline Silicon Efficiency High efficiency (exact % not specified) Folded Dimensions 11.22 × 7.48 × 1.18 in (285 × 190 × 30mm) Unfolded Dimensions 29.52 × 11.22 × 0.1 in (750 × 285 × 2.5mm) Weight 1.43 lbs (0.65 kg) Certifications Not specified (CE/RoHS likely) Warranty 24 Months Package Includes 21W Foldable Solar Panel Charger Key Features Smart IC charging technology High-wear PVC fabric case 2 mounting buckles included Works from -10°C to 60°C
21W Panel Setup Guide Maximize your charging efficiency with these expert techniques. Proper installation ensures optimal performance in all conditions.
✓ 5-Minute Setup ✓ All-Weather Ready ✓ Dual-Device Charging
Step 1: Solar Panel Positioning
Optimal Angles
UK/EU: 35°-45° tilt year-roundDirect Sun: Adjust every 1-2 hoursBackpack Mount: Use included buckles for 15°-30° tilt
Environmental Tips
Keep 50cm clearance from surfaces
Avoid partial shading (reduces output by 50-70%)
Clean panel surface weekly with microfiber cloth
Step 2: Device Connection
USB Devices
Phones/Tablets: Use both USB ports (3.8A max combined)Max simultaneous devices: 2 (shared 3.8A total)
Power Banks
Connect via USB port
Charge time: ~6hrs for 10,000mAh (full sun)
Charging Tips
Prioritize direct sunlight for fastest charging
Close battery-intensive apps during charging
For best results, charge one device at a time
Step 3: Mounting Solutions
Backpack Mount
Attach using included buckles (no loops required)
Position panel top-facing for optimal sun exposure
Adjust buckle tension to prevent movement
Ground Setup
Lay flat or prop against backpack at 25°-40° angle
Use rocks/sandbags in windy conditions
Face true south (magnetic compass +15°)
Temporary Mounts
Tent/Tarp attachment: Use carabiners with buckles
Tree mount: Hang via top buckle points
Bike mount: Secure with bungee cords
Step 4: Troubleshooting ⚠️ No Power? Check both USB connections ⚠️ Slow Charging? Reposition panel angle ⚠️ Port Not Working? Try different cable
For persistent issues, contact our support team - 2-year warranty included.
How Your 21W Charger Panel Works Understand the smart technology behind your portable solar charger and maximize its performance in any environment.
✓ SUNPOWER® Technology ✓ Smart IC Charging ✓ Weather-Resistant Design
1. Solar Energy Conversion
High-Efficiency Cells
54 monocrystalline silicon cells convert 19.1-23.5% of sunlight
ETFE coating reduces reflection for cloudy day performance
Generates up to 21W (5V/3.8A total) in optimal conditions
Real-World Performance
Full sun: 18-21W output
Partial clouds: 12-15W output
Heavy overcast: 4-8W output
2. Intelligent Power Distribution
Device Detection
Smart IC chip identifies connected device types
Auto-selects optimal voltage (5V standard)
Prevents overcharging (max 3.8A shared across ports)
Port Specifications
USB-A (x2): 5V/3.8A sharedNo DC output (21W model only)
Simultaneous Use
Example 1: Phone (1A) + Tablet (2A) = 3A total
Example 2: Power bank (2.4A) only = 2.4A dedicated
Both ports share 3.8A maximum
3. All-Weather Operation
Durability Features
IP64 waterproof rating (rain/snow resistant)
-10°C to 60°C operating temperature
Rugged PVC fabric construction
Performance Tips
Cold weather: Output increases slightly (better conductivity)
Hot weather: Keep ventilated (output decreases above 45°C)
After rain: Shake off water droplets to restore full efficiency
4. Real-World Charging Examples
Device
Battery Capacity
Full Sun Charge Time
Cloudy Charge Time
iPhone 15
3,349mAh
2-2.5 hours
4-5 hours
iPad Air
7,606mAh
5-6 hours
10-12 hours
10,000mAh Power Bank
10,000mAh
7-9 hours
14-18 hours
Note: Times assume optimal panel positioning and may vary based on environmental factors.
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