Embarking on a backpacking adventure means embracing the wilderness, but it doesn’t mean leaving all your essential gadgets behind. Keeping your phone, GPS, headlamp, or camera charged is crucial for navigation, emergencies, and capturing memories. That’s where the best solar chargers for backpacking become indispensable. These lightweight, portable powerhouses harness the sun’s energy to keep your devices running, ensuring you stay connected and safe, even miles off the grid. Forget bulky power banks that eventually run out; with a reliable solar charger, you have an endless supply of clean energy right from the sky. We’ve put together a list of top-rated solar chargers designed specifically for the demands of the trail, focusing on efficiency, durability, and packability.
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Our Top 8 Best Solar Chargers For Backpacking Reviews – Expert Tested & Recommended
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1. BigBlue 28W Portable Solar Panel Charger with Dual USB-C and USB-A for Backpacking Devices.
The BigBlue 28W portable solar panel charger is a true game-changer for outdoor enthusiasts seeking reliable power on their adventures. Its innovative design and high-efficiency panels ensure you get the most out of every sunbeam, keeping your devices charged even in varied conditions. With versatile USB-C and USB-A ports, it’s ready to handle a wide range of modern electronics.
Key Features That Stand Out
- ✓ Advanced Performance: Utilizes a shadow-free surface design for 20% more power from sunlight.
- ✓ Upgraded Triple-Port: Features dual USB-C and one USB-A port, offering up to 5V/3A per port and a combined 5V/4.8A output.
- ✓ High-Efficiency: Converts an impressive 25.4% of sunlight into free energy, setting an industry standard.
- ✓ IP44 Waterproof: Built to withstand splashes and light rain, making it durable for outdoor use.
Why We Recommend It
We highly recommend the BigBlue 28W due to its exceptional charging efficiency and robust build. The combination of USB-C and USB-A ports offers great flexibility, allowing you to charge multiple devices quickly. Its ability to perform well even with partial shading is a significant advantage for backpacking solar panel users who might encounter varied terrain or intermittent cloud cover.
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This portable solar charger is best for serious backpackers, hikers, and campers who need dependable power for smartphones, tablets, and other USB-powered devices on multi-day trips.
Pros and Cons
Pros:
- Excellent power conversion efficiency (25.4%).
- Versatile charging with both USB-C and USB-A ports.
- Durable and IP44 waterproof design for outdoor reliability.
- Foldable and compact for easy transport.
Cons:
- May struggle to provide full power in very low light or heavy overcast conditions.
- Requires direct sunlight for optimal charging speeds.
Customer Reviews
Customer Review: When I first purchased this portable solar panel, I was skeptical about its capabilities. To be honest, I didn’t anticipate its impressive performance. Let’s begin with the build quality. The manufacturer has done an excellent job with the design and construction. The foldable design makes it incred.
Customer Review: This solar charger works awesome! Took it to Death Valley for a two week long camping trip, never lost a charge in my phone, flashlight, camera, or any of my rechargeable equipment. The USB-C port charged our iphones much faster than the USB-A port, the USB-A port worked great for my equipment charg.
2. BigBlue 28W Portable Folding Waterproof Solar Panel Charger with USB-A/C for Backpacking.
The BigBlue 28W Portable Folding Waterproof Solar Panel Charger is another outstanding option from BigBlue, designed with the demanding needs of backpackers in mind. It excels in converting sunlight into usable power with high efficiency, ensuring your devices stay charged even when you’re deep in the wilderness. The integrated intelligent charging technology makes it a smart choice for diverse electronics.
Key Features That Stand Out
- ✓ Superior Sunlight Harvesting: Boasts premium, high-efficiency solar cells with an impressive 25.4% sunlight-to-power conversion.
- ✓ Intelligent Fast Charging Ports: Equipped with dual high-speed ports featuring an intelligent chip for optimal device identification and charging.
- ✓ Real-Time Power Monitoring: Includes an integrated digital ammeter to conveniently track energy generation.
- ✓ Ultimate Portability: Features a foldable design for easy carrying and attachment to backpacks.
Why We Recommend It
This BigBlue solar charger stands out for its exceptional efficiency and smart charging capabilities. The real-time power monitoring is a fantastic feature, allowing you to optimize panel placement for maximum charge. Its robust, waterproof design makes it an ideal companion for any outdoor adventure where power is scarce.
Best For
Perfect for adventurers who prioritize high efficiency and the ability to monitor their charging performance, making it one of the best solar chargers for backpacking.
Pros and Cons
Pros:
- Extremely high solar energy conversion rate (25.4%).
- Smart charging technology protects devices and optimizes speed.
- Digital ammeter provides useful real-time power feedback.
- Durable and waterproof construction suitable for harsh environments.
Cons:
- Does not include a built-in battery, requiring direct sunlight or a separate power bank.
- Folded size might still be considered bulky by ultra-light backpackers.
Customer Reviews
Customer Review: It’s solid. On the bright sunlight it charges two devices with 2.3-2.4 amps. Good enough to recharge two 10000 mah power banks within several hours. We took it to Yosemite and it did the job. I didn’t take it on the hike, not sure it would work well when attached to the backpack – the angle of the s.
Customer Review: I love this charger (BigBlue 5V 28W with readout) I use this to charge multiple battery packs and it is wonderful. I have charged my phone off of this all year so far. I bought a usb multi meter to check voltage. The voltage is regulated well and I have never seen it go above 5.1V. The lowest voltag.
3. FlexSolar 36W Ultra-Portable Solar Panel Charger with Quick Charge, USB-A & USB-C & DC Ports, Ult…
The FlexSolar 36W Ultra-Portable Solar Panel Charger is a marvel of compact engineering, offering impressive power output for its size. Designed for true portability, it collapses to a surprisingly small footprint, making it incredibly easy to carry on any backpacking trip. With multiple output options, it’s a versatile power source for a variety of devices, providing crucial off-grid energy.
Key Features That Stand Out
- ✓ Ultra-Portable Design: Folds to a compact 7.7×5.1 inches (smaller than most tablets) and weighs only 1.7 lbs.
- ✓ Smart Dual-Port Charging: Features USB-A, USB-C, and DC (5.5mm*2.1mm) outputs, catering to various USB and small DC devices.
- ✓ Triple-Layer Protective Construction: Includes scratch-resistant ETFE film, UV-stabilized EVA encapsulation, and impact-absorbing material for durability.
- ✓ Quick Charge Capability: Delivers efficient charging speeds to compatible devices.
Why We Recommend It
For those mindful of weight and space, the FlexSolar 36W is an excellent choice. Its extremely compact and lightweight design, combined with a robust 36W output and multiple port options, makes it a highly versatile and dependable solar charger for backpacking. The durable construction also reassures outdoor adventurers of its longevity.
Best For
This portable solar charger is best for ultralight backpackers and minimalists who need a powerful yet incredibly compact charging solution for their essential electronics.
Pros and Cons
Pros:
- Remarkably compact and lightweight for easy portability.
- Multiple output ports (USB-A, USB-C, DC) enhance versatility.
- Durable triple-layer construction provides excellent protection.
- Provides reliable power even in less-than-ideal sun conditions.
Cons:
- Does not include a power bank, so energy storage requires an external battery.
- Smaller size might mean slightly longer charge times for larger devices compared to bigger panels.
Customer Reviews
Customer Review: I purchased for an up coming backpacking trip. I use the solar panel in conjunction with a battery bank to provide power to a host of electronics. It preformed flawless and even provided power on less than ideal conditions. It proved exceptional durable has it spend a days bouncing on my pack charg.
Customer Review: Works good for small things like phones and earbuds. It would work pretty good for rechargeable headlamps and flashlights as well.
4. FlexSolar 40W Foldable Waterproof Solar Panel Charger with USB-C and A for Backpacking.
The FlexSolar 40W Foldable Waterproof Solar Panel Charger is engineered to provide substantial power in a portable package. With its higher wattage, it’s capable of charging devices faster, making it an excellent choice for those with multiple gadgets or larger battery banks. Its robust construction and smart technology ensure consistent performance even in challenging outdoor conditions, making it a strong contender for the best solar chargers for backpacking.
Key Features That Stand Out
- ✓ 40W Dual Fast-Charging: Equipped with QC3.0 USB-A & PD2.0 USB-C ports (18W max each) for simultaneous fast charging.
- ✓ SMART IC CHIP TECHNOLOGY: Integrated IC automatically detects connected devices for optimized charging and includes safety features.
- ✓ Ultra-Lightweight & Foldable: Ideal for mobile camps and off-grid adventures, delivering high-efficiency power in a compact form.
- ✓ Waterproof Design: Built to withstand wet conditions, enhancing its durability for outdoor use.
Why We Recommend It
If speed and power are your priorities, the FlexSolar 40W is a top pick. Its 40W output with fast-charging ports ensures your devices get juiced up quickly, which is invaluable when sunlight hours are limited. The smart IC chip and waterproof design add layers of convenience and protection for adventurers.
Best For
This portable solar charger is ideal for backpackers who need faster charging speeds for multiple devices, including power-hungry smartphones, cameras, and even small power stations.
Pros and Cons
Pros:
- Higher 40W output for quicker charging times.
- QC3.0 USB-A and PD2.0 USB-C ports provide fast-charging capabilities.
- Smart IC chip protects devices and optimizes current.
- Foldable and waterproof, excellent for rugged outdoor environments.
Cons:
- Might be slightly heavier or larger than lower wattage models, depending on specific pack size.
- Direct, strong sunlight is crucial to achieve advertised fast-charging speeds.
Customer Reviews
Customer Review: As solar generators are becoming popular I whimsically bought a lower end generator. This of course incited my curiosity about, solar panels. The flexsolar 40w (by the way they should change their name or modify it, as ‘flexsolar’ pulls up all sorts of other products), is highly appreciable. Had it.
Customer Review: Works great and the power output is as advertised.great for camping or during outages.
5. FlexSolar 30W Portable Foldable Waterproof Solar Charger with USB-A and USB-C for Backpacking.
The FlexSolar 30W Portable Foldable Waterproof Solar Charger hits a sweet spot between power output and portability. It offers solid charging capabilities for a range of electronic devices, with the convenience of both USB-A and USB-C outputs. Constructed with high-quality monocrystalline cells and ETFE film, it promises excellent energy conversion and durability for your outdoor pursuits.
Key Features That Stand Out
- ✓ Dual Output Ports: Built-in QC3.0 quick charge USB-A and USB-C output ports for direct device charging.
- ✓ High Solar Energy Conversion: Made with monocrystalline cells and ETFE film, achieving up to 24% energy conversion and 90% light transmission.
- ✓ Visualized Smart Charging: Equipped with an LED indicator to visually monitor the working status of the charger.
- ✓ Waterproof & Durable: Designed to be waterproof and highly resilient, suitable for various outdoor conditions.
Why We Recommend It
This FlexSolar charger is a fantastic all-rounder. The 30W output provides a good balance for charging speed and panel size, while the high energy conversion ensures you’re making the most of available sunlight. The LED indicator is a nice touch, offering visual confirmation that your panel is actively charging. It’s a reliable choice for any backpacking adventure.
Best For
Ideal for general backpackers and campers who need a balanced portable solar charger that is efficient, durable, and provides versatile charging options for everyday devices.
Pros and Cons
Pros:
- Efficient 30W output with high energy conversion (up to 24%).
- Includes both USB-A and USB-C quick charge ports.
- Durable monocrystalline cells and ETFE film construction.
- LED indicator for easy monitoring of charging status.
Cons:
- No integrated battery for power storage during non-sunny periods.
- Folded size might still be a consideration for ultra-minimalist packers.
Customer Reviews
Customer Review: This solar panel is working well after having tried two others which did not satisfy the requirements. I have it inside the windshield running the cable outside to the battery. Although this limits which direction I can park the car during the winter to get Sunshine on the panel, I remedy that by pu.
Customer Review: Works great, I don’t use my truck frequently and just sitting on my driveway, but having this solar charger makes it sure that I can still start my truck anytime and don’t have to worry about my old battery gets discharged over time. This is just to maintain a good charge but not intended of chargin.
6. ELECOM NESTOUT 28W Portable Foldable Solar Charger with Dual USB-A for Backpacking.
The ELECOM NESTOUT 28W Portable Foldable Solar Charger is a recipient of the prestigious IF Design Gold Award, a testament to its innovative design and functionality. This portable solar charger leverages high-efficiency SunPower MAXEON cells to deliver superior power conversion, ensuring your devices stay charged even in demanding outdoor environments. Its robust build and wide compatibility make it a reliable companion for any backpacker.
Key Features That Stand Out
- ✓ IF Design Gold Award Winner: Recognized for innovation and exemplary design within the NESTOUT Outdoor Series.
- ✓ High Efficiency Solar Cells: Utilizes SunPower MAXEON cells for up to a 24% increase in efficiency over traditional solar cells.
- ✓ Wide Device Compatibility: Dual USB-A ports can charge a variety of devices, including mobile phones, tablets, and Bluetooth earbuds.
- ✓ Portable and Foldable: Designed for easy transport and deployment in outdoor settings.
Why We Recommend It
The ELECOM NESTOUT 28W combines award-winning design with powerful performance. Its use of SunPower MAXEON cells ensures top-tier efficiency, meaning more power from less sunlight. For those who value both aesthetics and functionality in their gear, this solar charger for backpacking is an excellent choice.
Best For
This charger is best for design-conscious backpackers and campers who need a highly efficient and widely compatible portable solar charger for their electronic devices.
Pros and Cons
Pros:
- Award-winning design and aesthetic appeal.
- Exceptional efficiency with SunPower MAXEON cells.
- Dual USB-A ports offer broad device compatibility.
- Durable and well-built for outdoor adventures.
Cons:
- Only features USB-A ports, lacking the faster USB-C option.
- May have a higher price point due to its premium design and components.
Customer Reviews
Customer Review: Great quality, compact and foldable, even through light clouds it has good power output. Will charge from inside vehicle window. I use it for phone and drone batteries.
Customer Review: I use it as an emergency power source for my small electronics and GPS unit via the rechargeable Nestout battery. Thats right in the wheelhouse for this solar panel.Ruggedness: Seems well put together, and of high quality materials. That being said, the velcro fastened legs used to prop up the devic.
7. BigBlue Ultra-Light Portable 25W Solar Panel Charger with USB-A and USB-C Ports, 0.84 lbs Pocket…
The BigBlue Ultra-Light Portable 25W Solar Panel Charger lives up to its name, offering remarkable portability and efficient charging in a tiny package. Weighing less than a pound and folding down to the size of an iPad, it’s designed for backpackers who obsess over every ounce. Despite its compact size, it provides both USB-A and USB-C ports, making it a versatile and indispensable tool for staying powered on the trail.
Key Features That Stand Out
- ✓ Compact and Lightweight: Folds down to iPad size, measuring 4.65×6.42×1 inches and weighing only 0.84 lbs.
- ✓ Efficient and Smart Charging: Features USB-A (5V/2.4A) and USB-C (5V/3A) ports, capable of powering two devices simultaneously.
- ✓ Premium-Grade Solar Cells: Utilizes N-type solar cells without metal lines on the front, capturing more sunlight for increased electricity generation.
- ✓ Dual Port Versatility: Offers both USB-A and USB-C for broad compatibility with modern devices.
Why We Recommend It
For the ultralight crowd, this BigBlue 25W charger is a dream. Its incredibly low weight and small folded size make it almost unnoticeable in your pack. The inclusion of both USB-A and USB-C ports in such a compact design is a huge win, providing flexibility without added bulk. It’s truly among the best solar chargers for backpacking when weight is a primary concern.
Best For
This portable solar charger is specifically best for ultralight backpackers, thru-hikers, and minimalist adventurers where every gram counts, offering essential power without compromising on pack space.
Pros and Cons
Pros:
- Extremely lightweight and compact, ideal for minimalist packing.
- Includes versatile USB-A and USB-C ports.
- High-efficiency N-type solar cells enhance power capture.
- Can charge two devices concurrently.
Cons:
- Lower wattage (25W) means slower charging for larger devices compared to higher wattage panels.
- No built-in battery, requiring direct sunlight or a power bank for energy storage.
Customer Reviews
Customer Review: folds into small package, well made. Charged a 10,000 portable power bank in about 6 hours in the sun. Great back up item and small and lite. Highly recommend. Very well made, wish it came in a small case, has an elastic strap to hold it closed, but very happy with it overall.
Customer Review: Size is good but the marketing is deceptive. While it may my 25W worth of solar panels you can’t get 25W out of either port or as total output. Right on the back of the unit the outputs are printed and the highest port is the C port at 15W (5V x 3A). It’s lists total output as 5V 4A which is 20W bet.
8. ELECOM NESTOUT 28W Portable Foldable Solar Charger with Dual USB-A for Backpacking.
The ELECOM NESTOUT 28W Portable Foldable Solar Charger is another iteration of the award-winning NESTOUT series, providing backpackers with a stylish yet highly functional power solution. Its reliance on SunPower MAXEON cells ensures superior efficiency, capturing maximum sunlight for your devices. Designed for durability and wide compatibility, this charger is built to excel in diverse outdoor conditions, making it a reliable addition to your gear.
Key Features That Stand Out
- ✓ IF Design Gold Award Winner: Part of the acclaimed NESTOUT Outdoor Series, recognized for innovative design.
- ✓ High Efficiency Solar Cells: Features SunPower MAXEON cells, boasting up to a 24% increase in efficiency over standard solar panels.
- ✓ Wide Device Compatibility: Dual USB-A ports provide power for various devices, including smartphones, tablets, and small electronics.
- ✓ Robust and Foldable: Constructed for durability and easy portability, suitable for rugged outdoor use.
Why We Recommend It
Like its sibling, this ELECOM NESTOUT 28W charger is a robust and efficient choice for keeping your gear powered. The high-efficiency SunPower cells mean you spend less time waiting for a charge, and the durable construction ensures it can handle the rigors of backpacking. It’s a solid choice if you need a dependable, aesthetically pleasing solar charger for backpacking.
Best For
This portable solar charger is ideal for backpackers and outdoor enthusiasts looking for a durable, high-efficiency solar panel with dual USB-A charging for their various devices.
Pros and Cons
Pros:
- Award-winning design and premium build quality.
- Superior power conversion efficiency with SunPower MAXEON cells.
- Dual USB-A ports ensure broad compatibility for many devices.
- Compact and foldable design for convenient travel.
Cons:
- Limited to USB-A outputs, might be slower for newer USB-C devices that support faster charging.
- Requires a separate power bank to store energy for nighttime or cloudy use.
Customer Reviews
Customer Review: Great quality, compact and foldable, even through light clouds it has good power output. Will charge from inside vehicle window. I use it for phone and drone batteries.
Customer Review: I use it as an emergency power source for my small electronics and GPS unit via the rechargeable Nestout battery. Thats right in the wheelhouse for this solar panel.Ruggedness: Seems well put together, and of high quality materials. That being said, the velcro fastened legs used to prop up the devic.
Complete Buying Guide for Best Solar Chargers For Backpacking
Essential Factors We Consider
When you’re out on the trail, every piece of gear needs to pull its weight, and your solar charger for backpacking is no exception. Here’s what we consider absolutely crucial:
- ✓ Wattage (Output Power): This dictates how fast your devices will charge. For smartphones, 10-20W is usually sufficient. If you’re charging larger items like tablets or multiple devices, aim for 28W or more. Remember, higher wattage generally means a larger panel, so it’s a balance.
- ✓ Portability (Size & Weight): A good portable solar charger for backpacking should be lightweight and foldable. Look for panels that pack down small enough to fit easily into your backpack or attach to the outside. Every ounce and inch matters when you’re covering miles.
- ✓ Durability & Weather Resistance: The backcountry is unpredictable. Your solar charger needs to withstand dust, dirt, and moisture. Look for panels with high IP ratings (like IP44 or higher) and robust materials like ETFE film.
- ✓ Charging Ports & Compatibility: Modern devices often use USB-C, while older ones might still use USB-A. Having both types of ports offers maximum versatility. Ensure the charger can deliver enough amperage (A) for your specific devices.
- ✓ Efficiency: Monocrystalline solar cells typically offer the highest efficiency, converting more sunlight into electricity. Look for conversion rates of 22% or higher for optimal performance, especially when sunlight isn’t perfect.
- ✓ Integrated Features: Some panels come with a built-in battery pack (which adds weight but allows for energy storage) or an ammeter to monitor current. Consider if these features add value for your specific needs.
Budget Planning
Investing in a good solar charger for backpacking is an investment in your safety and convenience. Prices for reliable portable solar panels can range significantly, typically from $50 to $150 for the wattages suitable for backpacking. Lower wattage (10-20W) options will generally be on the lower end, while higher wattage (28W+) or those with premium features (like high-efficiency SunPower cells or integrated battery packs) will be more expensive. Consider how frequently you’ll use it and the criticality of having charged devices. Sometimes, spending a little more upfront for better durability and efficiency can save you headaches (and dead batteries) in the long run.
Final Thoughts
Choosing the right solar charger for backpacking means balancing power, portability, and price. Think about the devices you’ll need to charge, the typical weather conditions you’ll encounter, and how much weight you’re willing to carry. A well-chosen solar panel can be a lifeline, keeping your vital electronics powered when traditional outlets are nowhere in sight. It offers true freedom and self-sufficiency on your wilderness excursions.
Frequently Asked Questions
Q: How long does it take for a solar charger to charge a phone while backpacking?
A: The charging time for a phone with a portable solar charger depends on several factors: the wattage of the panel, the intensity of sunlight, and the battery capacity of your phone. On average, a 20-28W solar panel in direct, strong sunlight can charge a typical smartphone (around 3000-4000mAh battery) in about 2-4 hours, similar to a wall charger. However, partial sun, clouds, or indirect angles will significantly extend this time.
Q: Do solar chargers work on cloudy days?
A: Yes, solar chargers for backpacking can still generate power on cloudy days, but their efficiency will be significantly reduced. Light clouds might allow for 30-50% of the maximum output, while heavy overcast conditions could drop it to 10% or even less. For optimal results, direct sunlight is always best, but even ambient light can provide a trickle charge, especially if you have a power bank to store the energy over time.
Q: Is it better to charge a power bank with a solar panel or directly charge devices?
A: For backpacking, it’s generally more efficient and reliable to charge a power bank with your backpacking solar panel, and then use the power bank to charge your devices. Solar panel output can fluctuate wildly with changes in sun exposure (walking through shaded areas, clouds, etc.). A power bank can smooth out these fluctuations, absorbing all available energy and providing a consistent, stable charge to your phone or other gadgets. This also allows you to charge devices at night or indoors.
Q: How do I attach a solar charger to my backpack?
A: Most portable solar chargers designed for backpacking come with grommets or loops on their corners. You can use carabiners, bungee cords, or even simple paracord to attach the panel securely to the outside of your backpack. Position it on the top or back of your pack to maximize sun exposure while you hike. Ensure it’s stable and won’t swing excessively, which could damage the panel or catch on branches.
Q: What wattage do I need for a solar charger for backpacking?
A: For general backpacking where you mostly need to charge a smartphone, GPS, or headlamp, a 20W to 28W solar charger is usually sufficient. If you plan to charge tablets, cameras, or multiple devices simultaneously, or if you anticipate less-than-ideal sunlight conditions, a 30W to 40W panel would be more beneficial. Higher wattage means faster charging and better performance in varied light, but also generally increases the size and weight of the panel.
Staying powered up on the trail is no longer a luxury, but a necessity for navigation, communication, and capturing your incredible journey. The best solar chargers for backpacking offer an unparalleled sense of self-sufficiency, ensuring your devices are always ready when you need them most. We hope this guide helps you find the perfect solar charging companion for your next adventure. Happy trails, and may your batteries always be full!