The Top 5 Solar Chargers for Backpacking in 2025

When backpacking, carrying a solar charger allows you to break free from reliance on fixed power sources, providing timely charging for devices like smartphones and flashlights. This is especially smart and necessary when extending stays in the wilderness or encountering emergencies. Below, we have selected the top five solar chargers for backpackers in 2025, comparing and recommending them based on charging speed, efficiency, weight, battery life, and durability.

1. BigBlue SolarPowa 28W (BigBlue)

• Brand and model: BigBlue SolarPowa 28W USB Charger.
• Key Features: 28W power output, utilizing high-efficiency back-contact (BC) silicon solar cells with a photovoltaic conversion efficiency of up to 25.4%. The panel folds flat for easy storage in a backpack and can be unfolded to charge devices using sunlight. It features three USB output ports (total output 5V/4.8A), enabling simultaneous charging of multiple smartphones or power banks. It also includes a built-in current indicator light for monitoring charging status.
• Advantages and disadvantages: The BigBlue 28W has the highest output power among similar products, offering fast charging speeds, high efficiency, and the ability to charge multiple devices simultaneously, making it an outstanding overall performer. It is made from 900D polyester fabric, which is scratch-resistant, durable, and has some waterproofing capabilities. However, it is relatively heavy (approximately 640 grams) and does not have a built-in battery, requiring an external power bank to store energy.
• Durability: The panel is wrapped in sturdy fabric and treated with a waterproof coating (IPX4 waterproof rating, resistant to splashes), making it durable for outdoor use.
• Suitable for: Travelers seeking high-power output and the ability to charge multiple devices simultaneously, such as multi-day camping or hiking groups. It is also the top choice as the primary charging solution for long-distance travel.
• Price range: Market price is around $70, with occasional discounts available on e-commerce platforms.

2. BioLite SolarPanel 10+ (BioLite)

• Brand and model: BioLite SolarPanel 10+, 10-watt foldable solar panel with built-in lithium-ion battery.
• Key Features: Peak output of 10W, built-in 3,200mAh battery that can charge in real-time under sunlight or pre-charge the internal battery. Features BioLite's patented “Optimal Light Acquisition System,” with a sun-aligning device and 360-degree stand to adjust angles and maximize light capture. Weighs approximately 550 grams and folds for easy portability (unfolded dimensions: approximately 257×208×24mm). Single USB-A output (5V/2.4A) for charging devices.
• Advantages and disadvantages: The advantage lies in the built-in battery, which can store solar energy, eliminating the need for real-time device connection for charging, making it more suitable for “battery life” requirements; it is lightweight and compact, ideal for lightweight travel. The drawbacks include its relatively low 10W power output, resulting in slower charging speeds, and the presence of only one USB port, making it difficult to charge multiple devices simultaneously. Additionally, the price is relatively high (approximately $150), offering average value for money.
• Durability: The SolarPanel 10+ achieves IPX4 water resistance, capable of withstanding water splashes. The panel and connectors are well-made, but the sun alignment tool and stand require careful handling. Overall, the build quality is reliable.
• Suitable Users and Scenarios: Ideal for ultra-light hikers or short-term campers who prioritize portability and efficiency, and occasionally need to charge a smartphone or small device. It is particularly suitable for users who only need to charge one or two devices and wish to store energy even on cloudy days.
• Price Range: The official price is approximately $149.95, and it can be purchased for around $120 during e-commerce promotions.

3. BLAVOR 10W Solar Charger (BLAVOR)

• Brand and Model: BLAVOR Portable 10W Solar Charger.
• Key Features: Single 10W monocrystalline silicon solar panel with a photovoltaic conversion efficiency of up to approximately 24%. Weighs only about 368 grams, with a compact folded size (47×360×195 mm), making it very lightweight and slim. Features dual USB outputs: one USB-A and one USB-C (total output 5V/2A). Includes an LED battery indicator.
• Advantages and disadvantages: Advantages include excellent cost-effectiveness, lightweight design, and USB-C output support, making it ideal for budget-conscious users. Its compact design allows it to be easily attached to a backpack for charging. The main drawback is its limited output power of 10W, resulting in slower charging speeds and the ability to charge only one or two devices at a time; it does not include a battery, so it cannot operate in cloudy conditions or indoors. While it may not match the premium quality of major brands, it is sufficient for everyday emergency use in outdoor settings.
• Durability: It has an IPX4 waterproof rating (everyday waterproofing), capable of withstanding light rain and splashes. The surface has a scratch-resistant coating, and the panel and edges are sturdy. The carabiner strap is convenient for securing it, but care should be taken to avoid vigorous impacts on the corners.
• Suitable for: Beginner backpackers, budget-conscious travelers, and minimalist gear enthusiasts. In sunny conditions, it can charge smartphones, tablets, and other devices, making it ideal for daytime short hikes, outdoor activities, and emergency backup scenarios.
• Price range: Approximately $26.99 on platforms like Amazon, offering excellent value for money.

4. Goal Zero Nomad 10 (Goal Zero)

• Brand and model: Goal Zero Nomad 10W foldable solar panel.
• Key features: 10W output, weighing approximately 1.2 pounds (about 550 grams). Includes a short cable and a USB-A port (5V/2.4A) for charging devices. The surface features a hard-coated panel that protects the solar cells when folded.
• Advantages and disadvantages: The Nomad 10's most notable advantage is its sturdy construction and strong “weather resistance,” effectively withstanding rain and snow. There is no need to worry about light rain, making it a favorite among experienced outdoor travelers. The drawbacks include a single 10W output port, which cannot charge multiple devices simultaneously; it is slightly heavier than comparable products of the same power rating, and it does not have a built-in battery, so it is recommended to use it with a portable power bank. Charging speed is comparable to other 10W panels, but performance is poor in low-light conditions.
• Durability: The Nomad 10 is marketed as a “weatherproof” design, with the manufacturer claiming it can “withstand rain and snow.” In actual testing, its hard-shell panel and thick canvas edges are more durable than typical foldable panels, resistant to impacts, and have securely stitched seams.
• Suitable for: Extreme outdoor enthusiasts or those engaged in long-distance hiking, trekking, or other harsh environments. If you are willing to pay for quality and want a more durable charging panel that only needs to charge one or two devices, the Nomad 10 is a good choice. It is also suitable for family camping and short trips.
• Price Range: Officially priced at approximately $99, it is higher than comparable products, but often available in bundle sets or promotions.

5. Anker PowerPort Solar 24W (Anker)

• Brand and model: Anker 24W PowerPort Solar three-port solar charging panel.
• Key Features: Uses thin-film CIGS solar cells, which are flexible and durable. When unfolded, it has a total power output of 24W, with three USB-A output ports (each port can output up to approximately 5V/2.4A, totaling 12W), allowing you to charge three devices simultaneously. In outdoor settings, it automatically detects lighting conditions, temporarily pausing charging when in the shade and resuming automatically when sunlight is restored. Equipped with an integrated stand, the panel can be tilted to face the sun for more efficient charging. When folded, it can store charging cables and other small items.
• Advantages and disadvantages: The advantage is its high output power, enabling quick charging of multiple smartphones, tablets, and other devices. The built-in stand and CIGS material make the panel more durable and resistant to bending. It offers high charging efficiency for scenarios requiring power for multiple devices. The disadvantage is its relatively heavy weight (approximately 1.13 kilograms) and large size; it also does not meet special waterproofing standards (the product does not specify an IP rating), so it should be avoided in heavy rain. The price is also relatively high.
• Durability: The CIGS thin-film panel is scratch-resistant and less prone to cracking, with good tear resistance. Although it does not have an official IP rating, the panel's surface has a protective film, so occasional exposure to rain during camping is generally not an issue; however, prolonged exposure to heavy rain should be avoided.
• Suitable users and scenarios: Suitable for teams or technical users with long trips and high power demands, such as long-term camping groups, multi-person road trips, or travel requiring simultaneous power supply for multiple devices. It can also serve as a high-power charging solution for rooftops or tent canopies. If charging speed and multi-device battery life are priorities, this model is worth considering.
• Price Range: The initial launch price was approximately $75. Currently, online discounts are available, with prices around $70.

Product Parameter Comparison

Summary Recommendation

If you prioritize ultra-light portability, only need to charge one or two devices, and have a limited budget, the BLAVOR 10W is an excellent choice: weighing just approximately 0.37 kg, it supports USB-C output and can charge a smartphone or small portable power bank on sunny days; it is affordable and lightweight, making it easy to carry. If you're willing to spend a bit more and want a battery backup feature, consider the BioLite SolarPanel 10+, which integrates a 3,200mAh battery, retains power even on cloudy days, and features a sun-alignment assist design, making it ideal for travelers who want both lightweight portability and reliable battery life.

For users with higher demands for battery life and charging speed, a high-power solution is recommended. For example, the BigBlue SolarPowa 28W offers high output power, enabling quick charging of multiple devices; its durable, waterproof design is also suitable for harsh outdoor environments. The Anker 24W panel, though heavier, supports charging three devices simultaneously and features a foldable stand and automatic adaptation technology, making it suitable for group travel or self-driving camping. In summary, the BLAVOR or BioLite 10+ are the top choices for lightweight travel, the BigBlue or Anker 24W for those prioritizing battery life, and the Nomad 10 for heavy-duty outdoor users requiring reliable durability.