As a backpacker who spends a lot of time in remote locations, I’ve learned that staying connected to the outside world isn’t just about convenience—it’s often a matter of safety. A portable solar charger has become an essential piece of gear in my backpacking kit. Over time, I’ve tried and tested various options, and now I can confidently say that choosing the best portable solar charger requires a thoughtful approach, not just a quick decision.
In this guide, I’ll walk you through everything you need to know to select the ideal portable solar charger for your backpacking needs. I’ll discuss the key features, pros and cons of different types of solar chargers, and provide some examples based on my personal experience. I’ll also include a handy comparison table so you can make an informed decision.
Table of Contents
Why You Need a Solar Charger for Backpacking
Before diving into the specifics of choosing a solar charger, let’s take a step back and think about why you need one in the first place. During long backpacking trips, it’s essential to keep your devices charged. Whether it’s for navigation, communication, or even a bit of entertainment, having a reliable power source is important.
However, finding power outlets is a rarity in the wilderness. A portable solar charger gives you the freedom to charge your devices anywhere, using the natural energy from the sun. It’s eco-friendly and convenient, especially for extended trips.
Factors to Consider When Choosing a Solar Charger
There are several factors to consider when selecting the best portable solar charger. These will depend on the kind of backpacking you do, how many devices you need to charge, and how long you’ll be out in the wild.
1. Charging Capacity (Wattage)
The first thing to think about is the charging capacity of the solar charger, which is measured in watts (W). Generally, the higher the wattage, the faster it will charge your devices. For instance, a charger with 10W might charge a smartphone at a slower pace than a charger with 20W.
It’s important to match the charger’s output with the devices you intend to charge. Here’s a quick breakdown of wattages and what they’re generally good for:
- 5W-10W: Suitable for smaller devices like phones or cameras.
- 10W-20W: Ideal for medium-sized devices like tablets or GPS units.
- 20W+: Good for larger devices like laptops or multiple devices at once.
2. Port Type and Number of Ports
The type and number of ports determine how many devices you can charge simultaneously and which devices they’re compatible with.
- USB-A: The most common port found on most solar chargers. Perfect for phones and smaller devices.
- USB-C: A newer standard with faster charging capabilities, often found in more modern devices like laptops, tablets, and high-end smartphones.
- DC Ports: These are typically used for laptops or higher-powered devices.
The number of ports is another consideration. If you’re like me and often need to charge multiple devices, you’ll want a charger with at least two or three USB ports.
3. Solar Panel Efficiency
Solar panel efficiency refers to how well the panel converts sunlight into energy. Efficiency is especially important when you’re in the wilderness, where sunlight can be inconsistent. Generally, solar panels with higher efficiency ratings will charge faster and perform better in low-light conditions.
Most portable solar chargers use monocrystalline or polycrystalline panels. Monocrystalline panels tend to be more efficient, but they are usually more expensive.
4. Weight and Size
Since you’ll be carrying your charger in your backpack, weight and size are critical considerations. A bulky, heavy charger may be impractical on a long trek, while a very small charger might not provide enough power for your needs.
The goal is to strike a balance between portability and performance. Ideally, a charger should weigh less than a pound and be compact enough to fit in your pack without taking up too much space.
5. Durability and Build Quality
Backpacking often involves rugged environments. You need a solar charger that can withstand the elements. Many portable solar chargers are designed to be weather-resistant, and some are even waterproof.
Look for chargers that are made with durable materials like high-quality plastic or fabric. Check for features like reinforced corners, shock resistance, and water resistance ratings (IPX5, IPX7, etc.).
6. Battery Storage
Some solar chargers come with built-in batteries, allowing you to store energy for later use. This is a helpful feature if you need to charge your devices during the night or when the sun isn’t available.
If you’re going on a long backpacking trip, consider getting a solar charger with a large battery capacity, such as 10,000mAh or more. This will give you the flexibility to store power during the day and use it when needed.
7. Price
Price is always an important factor. There’s a wide range of prices when it comes to portable solar chargers, so it’s important to determine your budget. While it’s tempting to go for the cheapest option, it’s often worth investing in a higher-quality charger that will last longer and perform better in the long run.
Comparison of Popular Solar Chargers
To help you make your decision, I’ve compared some of the most popular solar chargers for backpacking based on the factors mentioned above. The table below should give you a clearer idea of what each product offers.
| Brand/Model | Wattage | Ports | Efficiency | Weight | Battery Capacity | Durability | Price |
|---|---|---|---|---|---|---|---|
| Anker PowerPort Solar Lite | 15W | 2 USB-A | High | 1.3 lbs | No | Water-resistant | $$ |
| RAVPower 24W Solar Charger | 24W | 3 USB-A | High | 1.5 lbs | No | Weatherproof fabric | $$$ |
| Goal Zero Nomad 20 | 20W | 1 USB-A, 1 DC | High | 1.5 lbs | No | Water-resistant | $$$$ |
| Nekteck 21W Solar Charger | 21W | 2 USB-A | Moderate | 1.1 lbs | No | Water-resistant | $$ |
| BigBlue 28W Solar Charger | 28W | 3 USB-A | High | 1.2 lbs | No | Waterproof | $$$ |
| X-Dragon 20W Solar Charger | 20W | 2 USB-A | Moderate | 1.4 lbs | No | Water-resistant | $$ |
| SunJack 20W Solar Charger | 20W | 2 USB-A | High | 1.2 lbs | 10,000mAh | Weather-resistant | $$$$ |
My Top Picks for Backpacking Solar Chargers
After using and testing several solar chargers on my trips, here are the ones that stood out for their performance and value for money.
1. Anker PowerPort Solar Lite
This charger has been my go-to for shorter trips. With a 15W output, it provides enough power to charge a phone and a small camera simultaneously. It’s lightweight at just 1.3 pounds, and the water-resistant design means it can handle a bit of rain or exposure to moisture. It doesn’t have a built-in battery, so you’ll need to be in the sun for longer stretches, but it’s reliable and affordable.
2. Goal Zero Nomad 20
If you’re looking for something with a bit more power, the Goal Zero Nomad 20 is an excellent choice. With 20W of output, it can charge larger devices like tablets or GPS units. The portability and durability make it ideal for longer trips, and I appreciate the added bonus of having a DC port for charging larger devices like laptops.
3. BigBlue 28W Solar Charger
For extended backpacking trips where power needs are higher, I recommend the BigBlue 28W. It’s perfect for charging multiple devices at once, with three USB-A ports. I’ve found that it charges devices quickly, even on partially cloudy days, and its waterproof design ensures that it can handle rough conditions.
4. RAVPower 24W Solar Charger
The RAVPower 24W charger is a balanced option for those who want a high-efficiency panel with the ability to charge multiple devices. The three USB-A ports are great for keeping your gear powered up, and the weatherproof fabric construction adds durability without adding too much weight.
Conclusion: Picking the Right Charger for Your Needs
Choosing the best portable solar charger for backpacking comes down to balancing power, weight, and durability. Think about how long your trips are, how many devices you’ll need to charge, and how much weight you’re willing to carry. No matter which charger you choose, it’s important to pick one that will keep your gear powered up so you can stay connected and safe on your adventures.
Remember, there’s no one-size-fits-all solution, but with careful consideration, you’ll find the right solar charger for your needs. I hope this guide has helped you better understand the factors to consider when choosing a solar charger for your backpacking trips.
