
Solar panel ALLPOWERS 21 W
Peak power: 21 W
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Buy the ALLPOWERS 21 W portable solar panel for autonomous charging of your equipment on any trip!
Provide yourself with a reliable source of energy far from civilization. This 21 W foldable solar panel will become an indispensable companion on hikes, expeditions and outdoor trips. The compact design fits easily into a backpack, and two USB ports allow you to simultaneously charge multiple devices, including drone batteries, smartphones and tablets.
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High efficiency. Monocrystalline cells with an efficiency of 22-25% provide excellent energy production even in diffuse light .
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Universal charging. Two USB ports (5V/3A in total) allow you to charge smartphones, tablets, drone batteries and power banks.
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Maximum portability. Foldable design with folded dimensions of 22 x 20.8 x 2 cm and a weight of 610 g fits easily into a backpack .
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Intelligent iSolar technology. The built-in microcontroller detects the light intensity and optimizes the output current for safe and efficient charging .
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Durable materials. ETFE lamination protects the panel from moisture and corrosion, and durable Oxford fabric with carabiners allows you to attach the device to a backpack.
Operating principle and intelligent charging system
The ALLPOWERS 21 W solar panel consists of three monocrystalline modules connected by flexible jumpers . When exposed to sunlight, photocells generate electric current, which is supplied to the built-in intelligent controller. This system not only stabilizes the voltage to 5V, which is safe for USB devices, but also determines the optimal charging current depending on the light level.
The red LED light on the controller indicates there is sufficient light level to begin charging . It is important to remember that actual power output depends on weather conditions and the position of the panel relative to the sun. In optimal conditions (bright sunlight, perpendicular orientation), the panel is capable of delivering up to 15-16 W of usable power, which is enough to charge two smartphones simultaneously.
For maximum efficiency, it is recommended to place the panel perpendicular to the sun's rays and use it in conjunction with an external battery (power bank), which will accumulate energy throughout the day for subsequent charging of devices.
Technical characteristics and equipment
| Characteristics | Meaning |
|---|---|
| Peak power | 21 W |
| Photocell efficiency | 22-25% |
| Output ports | 2 × USB (5V / up to 3A total) |
| Unfolded size | 654 × 208 × 5 mm |
| Folded size | 220 × 208 × 20 mm |
| Weight | 610 g |
| Operating temperature | -20°C to +60°C |
The delivery set includes the folding panel itself, two carabiners for attaching to a backpack and a USB cable for connecting devices. The panel is ideal for powering FPV equipment in the field, charging LiPo batteries for drones, and powering all your essential electronics on long trips.
Specifications
- Peak power: 21 W
- Solar energy conversion rate: 2%-25%
- Operating temperature range: -20°C~60°C
- Outputs: USB-C: 5V3A/9V2A/12V1.5A (MAX) USB-A: 5V3A/9V2A/12V1.5A (MAX)
- Folded Size: 220*208*20mm/8.66*8.18*0.78in
- Unfolded size: 654 * 208 * 5mm / 25.7 * 8.18 * 0.19in
- Weight: 610g/2.2lbs.