6 best backpacking solar charger 2021
You’ll want a lightweight, foldable solar charger with efficient monocrystalline panels and multiple USB ports to keep your devices powered on the trail. These backpacking solar chargers are essential for staying connected and fully charged during your outdoor adventures.
Top picks like the BigBlue 28W and FlexSolar 36W offer high efficiency and durable water resistance, making them perfect for rugged conditions. Meanwhile, smaller options like the BigBlue 21W and 20W models balance portability with steady output.
Keep in mind, each lacks internal batteries, so pairing with a power bank helps ensure you have power when you need it most. Exploring these choices further will show you how to match your charging needs perfectly.
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BigBlue 28W High-Efficiency Solar Panel Charger with Dual USB-C and USB-A
- Advanced Performance: BigBlue 28W portable solar charger provides 20% more power from every ray, thanks to...
- Upgraded Triple-Port: Dual USB-C and one USB-A ports deliver a maximum output of 5V/3A each, collectively achieving...
- High-Efficiency & IP44 Waterproof: 28W USB solar panel phone charger converts 25.4% sunlight into free energy...
- Ultra-Portable Emergency Solar Charger: Engineered for outdoor camping/hiking and emergency power supply, BigBlue...
- Universal Power on the Go: Charge your smartphones, power banks, GPS, flashlight and small electronics seamlessly...
Experience reliable power on the go with the BigBlue 28W High-Efficiency Solar Panel Charger. Designed for portability and performance, it solves the common problem of running out of battery during outdoor activities. Its foldable design makes it easy to carry without adding bulk to your gear.
This solar charger uses advanced N-type monocrystalline cells with a 25.4% conversion efficiency. That means faster charging under direct sunlight, helping you keep your devices powered up quickly. Dual USB-C and USB-A ports enable charging multiple gadgets simultaneously, enhancing convenience during trips.
The charger is built to withstand outdoor conditions with an IP44 rating, offering protection against rain splashes. However, the USB junction box isn’t waterproof, so extra care is needed in wet environments. Without an internal battery, it charges devices directly, requiring sunlight to function.
Maintenance is simple—just keep the panels clean and dry after use to maintain efficiency. Note that Apple device cables are not included, so you’ll need to bring your own for compatibility.
Best for: Outdoor enthusiasts and travelers needing a compact, efficient solar charger for smartphones and small electronics during camping, backpacking, or emergencies.
What We Like:
- High 25.4% solar conversion efficiency for faster charging
- Dual USB-C and USB-A ports support simultaneous device charging
- Lightweight, foldable design with IP44-rated panels for rain resistance
- Smart IC technology ensures safe and reliable charging
Specification:
| Feature | Details |
|---|---|
| Manufacturer | BigBlue |
| Dimensions (folded) | 11 x 6 x 1.4 inches |
| Weight | 1.5 lbs (0.68 kg) |
| Material | N-type Monocrystalline Cells |
| Color Options | Not specified |
FlexSolar 36W Ultra-Portable & Lightweight Solar Panel Charger
- Ultra-Portable Solar Companion：Engineered for adventure, the FlexSolar 36W folds to a compact 7.7×5.1smaller...
- mart Dual-Port Charging：Equipped with USB-A, USB-C and DC(5.5mm*2.1mm)outputs, this solar charger delivers power...
- Featuring a triple-layer protective construction: 1. Scratch-resistant E film surface coating 2. UV-stabilized EVA...
- 24% Photovoltaic Efficiency： Engineered with military-grade solar arrays, the FlexSolar portable charger achieves...
- IP67 Weatherproof Durability: Engineered to withstand harsh outdoor conditions, this 36W solar panel features...
The FlexSolar 36W Ultra-Portable Solar Panel Charger makes off-grid power simple and convenient. Designed for adventurers, its compact size and lightweight build mean you can carry reliable power without extra bulk. This charger folds down smaller than most tablets, fitting easily in any backpack.
With 36 watts peak output and 24% efficiency, it delivers steady charging through USB-A, USB-C, or DC ports. The advanced MPPT technology ensures your devices charge efficiently, even in partial shade. This means fewer interruptions and more dependable power when you need it most.
Built tough with an IP67 rating, the panel resists dust and water, making it ideal for outdoor use. Its durable design withstands over 2,000 folds without damage. Maintenance is minimal—just keep the surface clean and dry to maintain optimal performance.
Mounting the panel is simple using included carabiners and a reinforced strap, so you can attach it to your pack or tent. While its 5V output suits most small devices, fast charging for larger gadgets may require compatible protocols or additional power sources.
Best for: Outdoor enthusiasts and travelers seeking a lightweight, foldable solar charger for dependable off-grid power.
What We Like:
- High photovoltaic efficiency with MPPT tech for reliable charging even in shade
- Rugged, weatherproof design with dust and water resistance (IP67)
- Compact, foldable size that fits easily in backpacks
- Multiple charging ports including USB-A, USB-C, and DC
- Convenient mounting options with carabiners and reinforced strap
Specification:
| Feature | Details |
|---|---|
| Manufacturer | FlexSolar |
| Dimensions | 7.7 × 5.1 inches (folded) |
| Weight | 1.7 lbs (0.77 kg) |
| Material | Durable weatherproof fabric |
| Color Options | Black and gray |
BigBlue 21W Portable Solar Panel Charger
- ULTRA-PORTABLE CAMPING SOLUTION: BigBlue 21W solar charger is designed for ultimate portability, folding down to...
- FAST AND SAFE CHARGING: Dual USB ports (each 5V/3A max, combined 5V/4.2A max) efficiently power most 5V electronic...
- ENHANCED DURABILITY AND WEATHER RESISTANCE: BigBlue solar panel charger features PVDF surface that provides...
- HIGHER EFFICIENCY CONVERSION: BigBlue 21W solar phone charger features high-quality monocrystalline panels...
- WHAT'S INCLUDED AND CAUTION: You'll receive 1PCS 21W Foldable Solar Panel, 1 USB-C to USB-C cable, 2 Carabiners and...
The BigBlue 21W Portable Solar Panel Charger offers a practical solution for staying powered during outdoor adventures. Its lightweight, foldable design makes it easy to carry and set up wherever you go, eliminating worries about dead batteries on the trail. This charger converts sunlight into electricity efficiently, helping you keep your devices charged without access to traditional power sources.
Weighing just 1.32 lbs and folding down to a compact size, it fits comfortably into backpacks or travel bags. The monocrystalline silicon panels provide reliable energy with a 24.7% conversion rate. A tough, corrosion-resistant PVDF surface protects the panels, ensuring durability in varying outdoor conditions.
Charging is simple and versatile with both USB-A and USB-C ports, each delivering up to 5V/3A. Intelligent IC protection safeguards your devices during charging. While the panel is rated IP68 for dust and water resistance, the USB junction box itself is not waterproof, so care is needed in wet environments.
Maintenance is straightforward—keep the surface clean to maintain efficiency and avoid prolonged exposure to harsh elements. This solar charger is ideal for hikers, campers, and travelers who need dependable, portable power without added bulk.
Best for: Outdoor enthusiasts and travelers needing a lightweight, efficient solar charger for on-the-go device charging.
What We Like:
- Lightweight and foldable for easy transport
- High 24.7% solar conversion efficiency
- Durable, corrosion-resistant PVDF panel surface
- Dual USB-A and USB-C ports with safety protection
Specification:
| Feature | Details |
|---|---|
| Manufacturer | BigBlue |
| Dimensions (folded) | Approximately book size |
| Weight | 1.32 lbs (0.6 kg) |
| Panel Material | Monocrystalline silicon |
| Surface Coating | Corrosion-resistant PVDF |
| Output Ports | USB-A and USB-C (5V/3A each) |
| Water Resistance | IP68 rated panel, USB box not waterproof |
28 W Portable Solar Panel Charger,Foldable with Dual USB Ports for Phones
- 28W Solar Charging for USB Devices: Designed to convert sunlight into usable power for compatible phones, tablets...
- Dual USB Output: Two USB ports let you connect two compatible devices at the same time, making this portable solar...
- Foldable and Lightweight Design: The compact folding design fits easily into backpacks, camping bags and RV gear...
- Durable ETFE Construction: The ETFE laminated surface is designed to resist wear, dust and changing outdoor...
- Designed for Outdoor Use: Open the panels toward direct sunlight and adjust the angle as conditions change for...
Experience reliable power anywhere with this 28 W portable solar panel charger designed for outdoor use. Its foldable, lightweight design solves the common issue of carrying bulky chargers on trips. You can easily charge two USB devices at once, keeping phones, tablets, or GPS units powered on the go.
The charger features a tough ETFE-laminated surface and an IP67-rated body, making it resistant to dust and rough conditions. However, to maintain optimal performance, keep the USB ports dry and protected from moisture. This ensures your devices stay safe during use.
Weighing just 1.8 pounds, the panel folds compactly for simple storage in backpacks. Included accessories like carabiners and charging cables add convenience, allowing you to set up and adjust the panel quickly for the best sunlight exposure.
While it doesn’t store power internally, the solar panel delivers steady, eco-friendly charging when positioned correctly in sunlight. This makes it a practical solution for those needing power on the move without relying on traditional outlets.
Best for: Outdoor enthusiasts such as backpackers, campers, and hikers requiring a lightweight, foldable solar charger to power multiple USB devices efficiently during their adventures.
What We Like:
- Lightweight and compact foldable design for easy transport
- Dual USB ports enable charging of two devices simultaneously
- Durable ETFE surface and IP67 rating provide strong outdoor protection
- Includes carabiners and cables for versatile setup
- Eco-friendly power source ideal for remote locations
Specification:
| Feature | Details |
|---|---|
| Manufacturer | Not specified |
| Dimensions (folded) | Not specified |
| Weight | 1.8 lb (0.82 kg) |
| Material | ETFE-laminated surface |
| Color Options | Not specified |
20W Portable Solar Charger for Camping, Backpacking, 8.29oz
- [Rapid Power Output] This monocrystalline solar panel delivers fast and steady charging speeds to keep your devices...
- [Dual Type C Interfaces] Equipped with two built in Type C ports, this portable solar charger allows simultaneous...
- [Rugged Protective Build] Constructed with monocrystalline silicon and solid protective components, this solar...
- [Lightweight Portable Design] Measuring 11.81x5.71in and weighing just 8.29oz, this white solar phone charger...
- [Renewable Power Supply] This multi functional emergency solar charger utilizes natural sunlight to cut reliance on...
Experience reliable off-grid power with the 20W Portable Solar Charger, designed for outdoor lovers who value convenience and efficiency. Its lightweight and compact design ensures it fits easily in your backpack, making power on the go simple and stress-free.
The charger’s monocrystalline silicon cells provide steady energy, so your devices stay powered during camping, backpacking, or emergency situations. Its dual Type-C ports allow you to charge two devices simultaneously, solving the problem of limited charging options on the trail.
Built with durable, sunproof materials, this solar charger withstands harsh outdoor elements, requiring minimal maintenance beyond keeping the panels clean. Simply place it in direct sunlight, and it starts generating renewable energy instantly.
While it excels in portability and ruggedness, its 20W output means it may charge larger devices slowly. Also, it depends entirely on sunlight, which can limit use in low-light conditions. Despite these constraints, it’s a practical and eco-friendly solution for staying connected outdoors.
Best for: Outdoor enthusiasts and travelers who need a lightweight, portable, and reliable solar charger for camping, backpacking, and emergency power.
What We Like:
- Lightweight and compact at 8.29oz, ideal for easy transport
- Dual Type-C ports for charging two devices at once
- Durable, sunproof build designed for tough outdoor use
Specification:
| Feature | Details |
|---|---|
| Manufacturer | — |
| Dimensions | Compact (specific size not provided) |
| Weight | 8.29 oz (235 g) |
| Material | Rugged, sunproof materials |
| Color Options | — |
20W Foldable Solar Panel Charger, Monocrystalline Portable
- [High Conversion Efficiency] Capture more sunlight with 20W monocrystalline silicon cells that up to 22 percent...
- [Foldable and Lightweight Design] The foldable construction packs down flat and weighs little, so it slips into a...
- [Multi-Device USB Output] Two USB ports, one Type C port, and one DC port let you charge multiple devices at once...
- [Weatherproof Construction] Built with rugged monocrystalline materials, this outdoor solar panel is made to handle...
- [Ready for Outdoor Use] Clip hooks are included so you can hang the folding solar panel on a backpack or tent for...
Experience reliable power wherever you go with the 20W Foldable Solar Panel Charger. Designed for on-the-move use, it effortlessly charges multiple devices through its efficient monocrystalline solar cells. With up to 22% photoelectric conversion, it captures sunlight quickly, keeping your gadgets powered even in remote locations.
Its foldable design allows fast setup and compact storage, making it simple to carry and use outdoors. The charger features rugged, weatherproof materials that withstand rain and dust, ensuring durability during camping or hiking trips. Maintaining the panel is easy—just wipe clean to keep it operating at peak efficiency.
Equipped with two USB ports, a Type-C, and a DC port, this solar charger supports simultaneous charging of phones, tablets, and power banks. While it lacks a built-in battery, it delivers power directly when exposed to sunlight, ideal for off-grid situations. The lightweight build and clip hooks make hanging the panel convenient and hands-free.
Although its 20W output may not quickly charge larger devices, it offers a practical solution for powering essentials during outdoor adventures and emergencies. Its size when unfolded is compact enough to balance portability and solar capture.
Best for: Outdoor enthusiasts and travelers needing a lightweight, portable solar charger for multiple devices during camping, hiking, or emergency use.
What We Like:
- Efficient monocrystalline cells with up to 22% photoelectric conversion
- Multiple ports (2 USB, 1 Type-C, 1 DC) for simultaneous charging
- Foldable and weatherproof design with clip hooks for easy setup and transport
- Lightweight and portable for outdoor convenience
Specification:
| Feature | Details |
|---|---|
| Manufacturer | Not specified |
| Dimensions | Foldable design (unfolded size not specified) |
| Weight | Lightweight (exact weight not specified) |
| Material | Rugged, weatherproof materials |
| Color Options | Not specified |
Factors to Consider When Choosing a Backpacking Solar Charger 2021
When picking a backpacking solar charger, you’ll want to focus on key factors like solar panel efficiency and the types of ports it offers to match your devices. Don’t forget to check its durability and weather resistance since you’ll be out in the elements.
Also, consider the charger’s weight, portability, and how fast it can charge your gear. These things really make a difference when you’re on the trail. So, take your time and choose one that fits your needs perfectly.
Solar Panel Efficiency
Although many factors influence backpacking solar chargers, solar panel efficiency plays a crucial role in how much power you can generate from limited space. Efficiency measures the percentage of sunlight converted into electrical energy, with modern monocrystalline or N-type cells reaching around 22–25%.
Higher efficiency means you can carry a smaller, lighter panel while still getting the power you need. But remember, real-world conditions like temperature, shading, and sun angle reduce output compared to ideal ratings.
Surface treatments and advanced cell designs help maintain efficiency and durability over time. When choosing a charger, compare efficiency alongside wattage to estimate actual power density—two panels rated the same can differ greatly in size and performance, especially under low-light conditions.
Port Types And Compatibility
Consider the types of ports your devices require before picking a backpacking solar charger. Make certain the charger offers the right connectors, like USB-A, USB-C, or a 5.5×2.1 mm DC jack, since solar panels provide direct power and need compatible ports.
USB-C with Power Delivery is your best bet for faster charging and broader device support compared to older USB-A ports. Check both per-port and total output ratings, such as 5 V / 3 A, to make certain it can charge multiple devices at once without slowing down.
Also, verify which cables come included—USB-C to USB-C or USB-C to USB-A are common, but specific cables like Lightning usually aren’t. If you have non-USB devices or external battery packs requiring DC input, pick a panel that offers those extra ports.
Durability And Weather Resistance
Since backpacking exposes your solar charger to harsh conditions, durability and weather resistance are critical factors to prioritize. Look for chargers with an IP rating like IP44 or higher, ensuring they withstand rain, fog, dust, or even brief immersion.
Choose panels made with tough face materials such as ETFE or scratch-resistant E-film. These should be combined with reinforced backing to resist abrasion and UV damage.
Check for strong construction—reinforced seams, heavy-duty stitching, and corrosion-resistant hardware like stainless steel carabiner anchors. This way, your charger can survive repeated use.
Also, make sure electrical junctions and cable connectors are weather-sealed or protected by covers. These parts often aren’t waterproof, so it’s important to keep them safe.
Finally, verify the charger’s operating temperature range aligns with your climate. This helps maintain reliable performance in extreme conditions.
Weight And Portability
Weight and portability play a huge role in choosing the right solar charger for backpacking. You’ll want a charger weighing under 1–2 pounds (450–900 g) since every extra ounce counts on multi-day hikes.
Pay attention to folded size too—panels that fold to about the size of a small book or tablet (8×5 to 12×7 inches) fit easily inside your pack or pocket. Look for a high weight-to-watt ratio to maximize energy for the weight you carry.
Integrated mounting options like lightweight carabiners or straps help you attach the panel securely without adding bulk or awkward swinging. Finally, balance portability with durability; ultra-light models might save weight but can be fragile or less weatherproof.
Charging Speed And Output
Maximizing your solar charger’s speed starts with understanding its wattage and output capabilities. Higher peak wattage, like 20–36 W, means faster potential charging under full sun.
Check each port’s output current—most deliver around 3 A—but remember total output may be limited to 4–7 A. This affects how quickly you can charge multiple devices simultaneously.
Also, verify the output voltage and supported fast-charge protocols like USB-C Power Delivery or Quick Charge. These let compatible devices charge much faster than standard 5 V USB.
Keep in mind real-world conditions like the sun’s angle, temperature, and shading can reduce actual output markedly. Choose panels with MPPT or smart power management to optimize energy harvest and maintain higher efficiency during changing light conditions.
Accessories And Extras
When gearing up with a backpacking solar charger, don’t overlook the essential accessories and extras that make your setup efficient and hassle-free. Look for carabiners, straps, or integrated attachment points so you can secure the panel to your backpack or tent without carrying extra hardware.
Always bring compatible charging cables and adapters for all your devices to avoid relying on missing or proprietary cords. And hey, consider packing an external battery pack since most solar chargers lack internal storage. This way, you’ll have power after sunset or on cloudy days.
Weatherproofing features and protective covers are super important to shield your gear from moisture, dust, and abrasion. Finally, organize cables with a pouch or cable ties, and carry spare connector tips to prevent tangles and protect ports on multi-day trips.
Frequently Asked Questions
How Do Solar Chargers Perform in Cloudy or Rainy Conditions?
Solar chargers still work in cloudy or rainy conditions but produce less power. You won’t get full output, so you’ll need more time to charge devices or rely on stored battery power during low sunlight periods.
It’s pretty normal for solar panels to slow down when the sun hides behind clouds. But don’t worry, they don’t just stop working completely. Just keep in mind that charging might take longer than usual.
Can Solar Chargers Damage My Electronic Devices?
Solar chargers won’t damage your devices if they’re quality-made. Think of it like a well-built dam controlling water flow; reputable chargers regulate power, preventing surges that could fry your electronics during charging.
What Is the Average Lifespan of a Backpacking Solar Charger?
You can expect a backpacking solar charger to last around 3 to 5 years with proper care. Regularly cleaning the panels and avoiding extreme conditions will help guarantee it keeps charging your devices efficiently over time.
Taking a little extra care goes a long way. Just a bit of maintenance can make sure your charger sticks with you through many adventures.
Are Solar Chargers Safe to Use in Extreme Temperatures?
Like a cactus thriving in the desert, you can use solar chargers in extreme temperatures, but they’re not indestructible.
You’ll want to avoid overheating or freezing to keep them working efficiently and extend their lifespan.
Taking a little care goes a long way in making sure your charger keeps up with you, no matter the weather.
How Do I Properly Maintain and Clean My Solar Charger?
You should gently wipe your solar charger with a damp cloth to remove dirt and dust. Avoid harsh chemicals—they can damage the surface.
Keep it dry, and when you’re not using it, store it in a cool, shaded place. This helps maintain its efficiency and extends its lifespan.
Conclusion
When choosing a backpacking solar charger, remember that efficiency and portability matter most. Did you know solar panels can convert up to 22% of sunlight into usable energy? That means you can keep your devices powered without adding much weight to your pack.
Whether you pick a foldable 20W charger or a high-efficiency 28W model, you’ll stay connected and prepared on your adventures. These chargers are designed to be lightweight and compact, making them perfect for backpacking trips.
So, grab the right charger and enjoy worry-free outdoor charging! With the best backpacking solar charger, you can power your devices anytime, anywhere, without relying on traditional electricity. Stay connected, save energy, and make your outdoor experience even better with reliable solar power.
