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Solar power banks are a staple for many campers and adventurers. But how exactly do they work, and are they efficient at all? Here, we take a look at the best solar power banks.

Whenever I pack for a camping trip, a power bank for my smartphone is a must-have. But there's always this nagging worry at the back of my mind: "What if it runs out of power?"

That fear pushed me to explore the world of solar power banks. Imagine a gadget that drinks in sunlight through tiny solar panels to keep itself charged. Brilliant, right?

Though it's true that these solar chargers might need a few days to soak up enough sun to fully charge, they've been a game-changer for me. Now, I can enjoy the great outdoors without the dread of seeing my iPhone's battery die.

What a relief!

But the question remains: which are the solar power banks out there? And how exactly should one go about using them? I'm on a quest to uncover just that. Along the way, I'll share stories and insights, hoping to guide you towards keeping your devices alive with the power of the sun.

1. Solgaard Juicepack

Solgaard Juicepack power bank

The Solgaard Juicepack has quickly become my go-to gadget for outdoor adventures, and here's why: its dual USB ports let me power up more than one device at a time. This feature alone makes it a standout choice for me.

What really sets the Solgaard Juicepack apart is its charging efficiency. Just four hours of basking in the sun can boost its battery by 25%. For a solar power bank, that's pretty impressive, and it's why I rate it as the top pick among solar chargers.

But here's the kicker: it doesn't just work on sunny days. Even when the sky is overcast, this little powerhouse keeps on charging. And if you're anywhere near civilization, its USB-C port offers a quick charge option, filling up the battery in just a few hours. It's all about having choices, and the Solgaard Juicepack gives you plenty.

To top it off, its four LED indicators keep you in the loop on how much charge you have left, making sure you're never caught off guard.


  • Lightweight, perfect for traveling
  • Dual USB ports
  • LED indicators
  • A USB-C port
  • Capable of charging even on cloudy days


  • Charging can be slow when the weather's not cooperating

2. Renogy 72000mAh 266Wh Solar Power Bank

Renogy Solar Power Bank

As someone who's constantly on the move, the Renogy High-Speed PD Power Bank has been a lifesaver. Its dual USB-C PD ports are a game changer, charging my laptop at an impressive 60W and my phone at a swift 27W. This means less time tethered to a power outlet and more time being productive or enjoying the outdoors.

The 72000mAh capacity is nothing short of massive, allowing me to charge multiple devices simultaneously with a power conversion efficiency of up to 90%. However, it's worth noting that its size makes it non-TSA-approved, so it's not suitable for air travel.

For those using CPAP machines while camping or during power outages, the dedicated DC port is a thoughtful addition. Just remember, a separate CPAP adapter is needed, and turning off the heater/humidifier extends the power bank's runtime significantly.

Recharging the power bank is quick and easy, especially with a solar panel. Though you can't use the USB-C and DC ports at the same time, it's a minor inconvenience considering the overall convenience and reliability it offers.

The 10W wireless charging pad is a neat feature for decluttering cables, though it doesn't support low-power devices like earbuds or smartwatches. This wasn't a dealbreaker for me but something to keep in mind.


  • Dual USB-C PD ports offer fast charging
  • Massive 72000mAh capacity
  • DC port for CPAP machines
  • Can be recharged using solar panels or USB-C
  • 10W wireless charging pad


  • Not TSA-approved due to its large capacity, limiting its use for air travel.
  • Cannot use USB-C and DC ports simultaneously, which may affect charging strategy.

3. BLAVOR Solar Charger Power Bank

BLAVOR Solar Charger Power Bank

With over a decade of expertise, BLAVOR has built a solid reputation for crafting durable and reliable solar power banks, focusing on high-quality materials to ensure customer satisfaction and safety.

What stands out is its advanced USB C and Qi wireless charging capabilities, offering a 50% faster charging experience without harming your devices. This charger effortlessly powers up three devices at once, catering to a wide array of gadgets from iPhones to Samsung devices, making it incredibly versatile.

The device is powered by a top-notch lithium-cobalt battery, promising 50% more life cycles than the average Li-polymer battery. Despite its powerful 10,000mAh capacity, it's the most compact and lightweight option I've encountered, capable of charging an iPhone 8 over three times, an iPhone 14 Pro twice, and an iPad Air fully once.

BLAVOR hasn't skimped on design or safety; the charger boasts a flame-retardant ABS+PC case, enhanced with waterproof silicone for ultimate protection. The rubberized coating not only adds to its resilience but also makes it a pleasure to handle, thanks to its sleek finish.

Tailored for the adventurer, it's equipped to handle the elements, being IPX5 waterproof, dustproof, and shockproof. The addition of dual bright flashlights and a compass carabiner underscores its utility for outdoor escapades.

BLAVOR's commitment extends to their warranty and customer service, offering peace of mind with their prompt and considerate support.


  • Enhanced charging with USB C and Qi wireless.
  • Broad device compatibility.
  • Small, yet powerful with a premium battery.
  • Durable, ergonomic design suited for the outdoors.


  • 10,000mAh might not suffice for longer trips.

4. MREGB Solar Power Bank

MREGB Solar Power Bank

I recently got my hands on the MREGB Solar Power Bank portable charger that's built like a tank, using top-notch ABS material that's not just tough but also heat-resistant and incredibly durable. Its IP67 rating means it's waterproof, drop-proof, and dust-proof, so it's been my go-to device for every outdoor adventure without the fear of damage.

One of the standout features is its compatibility with all USB devices. With two USB output ports and support for QC3.0 fast charge, it's been a breeze keeping my smartphone and tablet powered up. The fast-charging capability is a real time-saver.

The charger boasts a massive 42800mAh battery capacity, packing more power without adding bulk. This has been a game-changer for me, eliminating any worries about running out of juice while on the go. The promise of over 1600 charging cycles adds to its reliability and longevity.

Another feature I've found incredibly useful is the super bright LED flashlight. It's potent enough to light up the way during night-time hikes or when searching for items in my tent, lasting up to 100 hours on a single charge.

However, it's important to note the solar charging feature. While it's a fantastic emergency backup, the charging speed is quite slow due to the variability of sunlight intensity and duration. It's more of a supplementary feature than a primary charging method. For regular use, relying on traditional charging ensures the power bank is ready when you need it.


  • Robust and durable build with IP67 rating.
  • Compatible with all USB devices
  • Massive 42800mAh battery capacity.
  • Includes a super bright LED flashlight.


  • Solar charging is slow and best used as an emergency option.

5. Feeke Solar Power Bank

Feeke Solar Power Bank

The next product I tried was the Feeke Solar Power Bank, and I've got to say, it's a solid addition to my tech arsenal, especially for outdoor excursions. With its 36800mAh capacity, it's more compact than you'd expect, thanks to the high-density lithium polymer cells. This power bank doesn't just boast a larger capacity but also promises durability with thousands of charge cycles.

The standout feature for me has been the dual 5V3.1A high-speed USB outputs, offering a charging speed that's 50% faster than the older 5V2A models. This efficiency means less downtime for devices, which is crucial when you're relying on GPS or need to keep in touch while off-grid. The intelligent IC chip, which adapts the output to your device's needs, ensures compatibility with nearly any electronic gadget you carry.

Durability is another area where the Feeke shines. Made from eco-friendly silicone, ABS, and PC materials, and equipped with a protective cover for the charging ports, it's designed to withstand water, dust, and drops. The included carabiner is a thoughtful touch, allowing for easy attachment to a backpack for solar charging while hiking.

The two LED headlight flashlights and built-in compass enhance its utility for outdoor adventures. Whether it's navigating back to camp or finding something in your tent, these features add a layer of safety and convenience.

However, it's important to note that while the solar charging option is innovative, it's slow and intended for emergency use only due to the variability of sunlight and the panel's conversion rate. For regular use, charging via USB is recommended.


  • High-capacity 36800mAh battery.
  • Fast charging with dual 5V3.1A USB outputs.
  • Durable, waterproof, dustproof, and drop-proof design.
  • Useful extra features like LED lights and a built-in compass.


  • Solar charging is slow and best suited for emergency situations.

How to Choose the Best Solar Power Bank

How to Choose the Best Solar Power Bank

Battery Capacity: How Much Power Do You Need?

Ever wonder how much power you really need to keep your gadgets going? The heart of a solar power bank is its battery, and its capacity is a big deal. Measured in milliampere-hours (mAh), the rule is simple: the higher the mAh, the more charging power you have at your fingertips.

Most top-notch solar power banks pack a punch with capacities ranging from 10,000 mAh to 25,000 mAh. But for those who need even more power, there are beasts out there boasting up to 50,000 mAh.

Consider your smartphone – most have batteries around 4,000 mAh. A 10,000 mAh solar power bank can recharge it from dead to full 2 to 3 times over, even after you factor in some power loss during the process.

Got a gadget with a monster battery, like the latest iPhone, or need to keep a tablet juiced up? Aim for the heavy hitters with at least 25,000 mAh. This way, you’re covered for multiple charges, ensuring your devices stay powered up, whether you’re on a weekend getaway or a longer adventure.

How Many Times Can It Charge Your Device?

Let's get real about what to expect from solar power banks. While they're super handy, the solar panels might not always give you rapid charging. So, it's smart to think about how many charges you'll actually get.

If your phone's battery is in the ballpark of 4,000 to 5,000 mAh, here's a quick way to figure out how much charge you can expect. Take the capacity of your power bank and divide it by your phone's battery size. For instance, with a 25,000 mAh power bank and a 4,000 mAh phone battery, you'd theoretically get about 6.25 charges.

But, here's the kicker: not all that power makes it through to your device. A bit gets lost along the way. If we play it safe and assume about 65% efficiency, those 6.25 charges drop down to about 4 full charges.

So, when planning for a trip or just everyday use, keep these numbers in mind. It'll help you stay powered up without overestimating what your solar power bank can do.

Charging Time with Solar Energy: What to Expect

Charging up a solar power bank using just sunlight? Brace yourself for a bit of a wait. Even the top-tier models need a hefty dose of direct sunlight—think around 100 hours—to get fully charged. Yep, that's right, it could take several weeks to soak up enough sun.

But here's the silver lining: you don't always need a full charge to get your gadgets going. Often, just a single sunny day can give your power bank enough juice to charge your phone or tablet once or twice. So, if you're out camping or hiking and the sun's on your side, you're in luck.

For those who'd rather not depend too much on traditional power sources, picking a solar power bank with extra solar panels is a smart move. These designs catch more sunlight, speeding up the charging process and making the most out of every ray.

Remember, a bit of patience goes a long way when you're harnessing the power of the sun. And on those bright days, you'll appreciate the eco-friendly boost to your devices.

Thinking About Portability

When it comes to choosing a solar power bank, size and weight really matter. Are you the type to pack everything but the kitchen sink for a camping trip, with plenty of space to spare? If so, you might lean towards a larger power bank. These beefier units come with more solar panels and a bigger battery capacity, perfect for keeping all your gadgets charged.

However, if you're more of a minimalist traveler or you're already packing heavy, space and weight become precious commodities. In these cases, a compact, lighter power bank might be your best bet. Sure, it might not hold as much power, but it'll save you the strain of carrying an extra load.

From personal experience, there's nothing like a long, uninterrupted nature walk. That's why, for me, a smaller power bank is a must-have. It slips easily into my pocket, ready to give my phone a boost without weighing me down. This way, I can enjoy the great outdoors without worrying about running out of battery.

How Many Devices Can You Charge at Once?

When picking out a solar power bank, think about how many gadgets you'll need to charge simultaneously. Will one USB port do the trick, or do you need a couple more?

Take camping trips as an example. If you're heading out with a buddy, you'll likely both need to recharge your phones at the end of the day. In that case, a power bank with at least two USB ports is essential.

But what if you're carrying more tech with you? Maybe you have a couple of phones plus a Nintendo Switch that needs charging. That's when you'll want to look for a power bank armed with several USB ports to keep everything powered up.

These days, it's pretty common to find solar power banks with two USB slots, but options vary widely, so it's always a good idea to double-check.

Also, remember that not all USB ports are created equal. Some might offer fast charging, getting your device powered up quickly, while others might take a bit longer to do the same job. This little detail can make a big difference, especially when you're trying to get all your devices charged and ready to go.

Why Durability Matters for Solar Power Banks

I’m clumsy. Like, really clumsy.

My gadgets tend to take a bit of a beating, which is why I always go for the ones that can really take a hit. When it comes to solar power banks, durability isn't just a nice-to-have, it's a must.

Think about it: these power banks are going to be your lifeline when you're out in the wild, dealing with everything from mud baths to accidental drops. They need to withstand being chucked into your bag, dropped on rocky trails, and maybe even surviving a tumble or two.

Especially for someone like me, who's known to be a bit clumsy, choosing a solar power bank that can stand up to a bit of rough and tumble is crucial. It's not just about surviving the occasional oops moment; it's about ensuring you're never left without power when you're far from a plug socket. So, if you're known for being a little heavy-handed with your tech, make sure your solar power bank is tough enough to keep up.

Understanding Weatherproofing

Talking about weatherproofing might not be the most exciting topic, but trust me, it's worth paying attention to, especially when it comes to your solar power bank. If you're like me and not planning to babysit your charger under the sun all day, you'll want it to handle whatever the weather throws at it—be it a sudden downpour, a dust storm, or scorching heat.

You'll often come across terms like "IP67" and "IP68." These are just fancy ways of saying how good a device is at keeping water and dust out. In simple terms, the higher the numbers, the better the protection.

The real champs in the solar power bank game can take a beating from the elements and keep on charging. So, when you're picking one out, make sure it's got the toughness to back you up, no matter where your adventures take you.

After all, what's the use of a solar charger if it taps out at the first sign of rain?

Cool Extras to Look for in Solar Power Banks

When you're picking out a solar power bank, there's more to consider than just how much charge it can hold. Some of the best features to keep an eye out for can make your life a lot easier.

First up, built-in LED flashlights. These are super handy and don't drain much power, making them perfect for those unexpected moments, like when you're trying to find your way back to your tent in the dark or dealing with a power cut at home.

Then there's Qi charging, a wireless charging standard that's a game-changer if you have a newer smartphone. Pair that with fast charging capabilities, and you can power up your devices in no time.

Don't forget about indicator lights. These little guys are crucial for giving you a heads-up on how much charge you've got left, so you're not caught off-guard.

And for the clumsy among us (myself included), a non-slip casing is a lifesaver. It keeps your power bank secure, whether it's perched on a boulder or sitting on the edge of your camping table.

So, when you're shopping for your next solar power bank, remember these extra features. They might just turn a good power bank into a great one.

Solar Power Banks vs Solar Chargers

Solar Power Banks vs Solar Chargers

Ever been on a hike, capturing the beauty of nature with your smartphone, only to find your battery dead? Or picture this: you're camping under the stars, and your only connection to the outside world, your phone, needs a power boost.

This is where the dilemma between choosing a solar power bank and a solar charger comes into play. But which one suits your adventure?

Solar Power Bank

A solar power bank is essentially a portable battery with a built-in solar panel, often around 5W or less. It's designed to store energy, letting you charge your devices anytime. Imagine you're at a music festival, capturing moments on your phone.

A solar power bank ensures you can recharge even when you're in the middle of a crowd, away from power outlets.

They're perfect for those "just in case" moments, offering peace of mind on short trips. But remember, relying solely on solar to charge it can be slow. It's like waiting for a pot to boil — it'll happen, but it'll take some time. Most users charge theirs at home, using solar as a convenient top-up option.

Solar Charger

On the other hand, a solar charger is a larger, more efficient panel that directly powers your devices using the sun's energy.

There's no storage; it's all about live charging.

Perfect for longer, off-grid adventures where power outlets are just a distant memory. With panels ranging from 5-25W, these chargers are like having a mini power station, ideal for keeping everything from smartphones to cameras charged during extended camping trips or in an off-grid cabin.

Which Option Should You Choose?

Imagine setting up a solar charger on a sunny rock by your tent, directly fueling your tablet with solar energy, versus having a solar power bank getting a slow but steady charge at your campsite to use later in the evening.

Both devices offer a green alternative to traditional charging, reducing your carbon footprint and dependency on non-renewable energy sources. It's a small step towards a more sustainable lifestyle, one charge at a time.

Many adventurers share stories of solar power banks saving their phones during unexpected outages, while others swear by the reliability of solar chargers to keep their cameras and GPS devices powered on multi-day treks.

Consider your typical adventure: Is it a day trip where a solar power bank's portability and convenience shine? Or are you venturing off-grid, where the direct, powerful charge of a solar charger is essential?

Think about device compatibility, weight preferences, and, of course, budget.

As technology evolves, so do these devices. Keep an eye out for new features like faster charging solar power banks or more compact, efficient solar chargers. Your perfect match today might have an even better version tomorrow.

Whether you opt for a solar power bank or a solar charger, you're choosing a smarter, eco-friendlier way to stay powered up. Each has its place, depending on your adventure's length, your gadgets' needs, and your personal preferences.

So next time you pack, consider not just what you'll take but how you'll power it. Happy charging!

Who Would Benefit From A Portable Solar Power Bank?


Solar Power Banks for campers

If you’re on a short-term camping trip, then a portable solar power bank could be the perfect way to charge two devices or more at the same tent when you’re sleeping or just having some downtime.

This is especially true if you’re not going to have access to the grid where you’re camping.

If you’re going with a solar power bank rather than a portable solar charger, I would recommend fully charging the power bank at home with a wall outlet first and then using the built-in solar panel to help keep the battery topped up on your trip.

For longer camping trips, look for high-capacity batteries (20,000 mAh or more) and the best solar power banks with multiple fold-out solar panels.

Also consider the climate you’re visiting and how waterproof/durable you may need the unit to be.


Solar Power Banks for preppers

If you’re preparing for a natural disaster, loss of power, or full-blown zombie apocalypse, then a solar power bank could be a good investment for you.

If you charge up the bank via grid power (before the end of the world) and then keep it in sunlight throughout the day, you should get several days of juice to charge your devices.

Plus, if you get enough sunlight, you can help to keep it topped up.

If you’re planning to be without electricity for several days or weeks, I would recommend getting a portable solar charger as well.

In the event of an emergency or natural disaster, you might not have access to wall power for charging your devices or your power bank. In this case, a solar power bank gives you a way to keep your phone charged, so you can stay in touch with relatives or for contacting emergency services.

Radu, PowerBankExpert Writer

People Who Live Off-The-Grid

Solar Power Banks for Offgrid

If you live off-the-grid, you may benefit from one of the best solar power banks with a high battery capacity and multiple fold-out solar panel sections.

While it’s not as effective as having a full-on solar panel kit for your home, a solar power bank could be a great little device for keeping your small devices charged up.

Ideally, you could pair a high-performing power bank with a high-quality solar charger or solar panel kit.

That way, you can have power at your home and then take a portable battery with you when travelling in nature, keeping the device’s solar panel in the sunlight to help keep the charge up.

Eco-conscious Travelers

Solar Power Banks for Eco-conscious Travelers

While it’s recommended that you charge most solar power banks via a wall outlet before taking them out, the best solar power banks come with multiple solar panels that are better at charging from the sun’s rays alone.

Not all solar power banks are born equal.

If you’re looking to reduce your carbon footprint as much as possible but your phone still needs to be fully charged, I recommend you find a high-quality device with a high battery capacity (25,000 mAh or more is great) and multiple panels.

This way, you can keep one or two devices charged up without relying on the grid, which often uses fossil fuels for its power.

You may have to use wall outlets occasionally, but you’ll definitely reduce your dependency on fossil fuels… and that’s the goal!

Forgetful Folks

Solar Power Banks for Forgetful Folks

You know what I’m really good at? Forgetting chargers. I do it all the time, and it’s really annoying. I need my phone for my job, GPS, and a bunch of other stuff.

Like most people in the 21st century… no phone is not an option.

Now, I don’t believe in “forcing myself to remember my phone charger,” because that just won’t work for me. I believe in building backup systems and contingencies.

As a result, I keep a small power bank in my car and a small power bank in my office. This way, I always have backup power when my charger is nowhere to be seen.

When I don’t need these battery packs because I’ve remembered my charging cables, I can just leave them in direct sunlight on my dashboard or office window sill. Whenever I need them, they’re always charged up and ready to go. Convenient.

What Devices Can You Charge With A Solar Power Bank?

What Devices Can You Charge With A Solar Power Bank

In most cases, a solar power bank can charge smaller electronic devices no bigger than a tablet. They usually have one or two USBs for their outputs, so you’re usually looking at charging smaller devices that use USB charging. This includes:

  • Smartphones
  • Tablets
  • Small laptops
  • iPhones
  • iPads
  • Bluetooth speakers
  • Portable radios
  • GPS systems
  • GoPro cameras

Some newer electronic devices will use USB-C, USB 3.0, or micro-USB charging systems. Modern smartphones might also use wireless Qi charging systems.

If you’ve got devices that need a unique charger connection, be sure to check this ahead of time.

Which Mobile Phones Are Compatible With A Solar Power Bank? 

Which Mobile Phones Are Compatible With A Solar Power Bank

The vast majority of phones these days charge via USB, so as long as you have the correct charger cable, you should be able to fully charge basically any modern smartphone with your power bank’s solar phone charging capabilities.

If your phone has wireless Qi charging, be sure to look for a power bank that supports this feature — you’ll probably end up paying quite a bit for a device that can support this.

You can fully charge any of these phones with a solar power bank and the right charger cable. The essential part is taking the correct charger cable OR buying a compatible power bank if your phone uses Qi charging.

A word of advice, however — you might not want to fully charge the phone up to 100%.

Make sure to only charge your phone from power bank to up to 85%. Because according to Lapguard your phone starts to discharge when it has full charging which means you will be wasting the power of your solar charger by charging your phone to 100%

Phone-Tree, Smartphone Specialists


How long do solar power banks last?

Solar power banks last for various times according to their battery capacity. With a 10,000 mAh device, you’ll get 5 charges from an average smartphone. If the battery is 25,000 mAh, you could get 12 charges from an average smartphone.

Do solar chargers really work?

Yes, solar chargers really do work. A solar charger uses solar panels to send solar power to your phone or devices directly, bypassing the need for a battery power bank.

How do I charge my solar bank?

You can charge your solar bank either via a wall outlet charger (in most cases) or with direct sunlight on the device’s built-in solar panel. However, solar charging can be very slow, so most users charge their solar bank with a wall outlet and then use solar charging as a “top up.”

How long should a power bank take to charge?

A power bank should take 1-2 hours to charge via a wall outlet or fast USB port. If you’ve got a solar power bank that you want to charge from solar energy, you could be looking at 100+ hours of direct sunlight in order to charge the power bank fully.

How can I speed up my solar charger?

You can speed up your solar charger by placing it in direct sunlight (i.e. not through a window), by pointing the solar panel toward the sun carefully, and by changing its position throughout the day to reach optimum sunlight.

Wrapping It Up: Harnessing the Sun's Power

Exploring the world of portable solar power banks reveals their versatility for everyone, from adventurers to eco-conscious urbanites. These devices bridge our need for connectivity with our love for the outdoors and commitment to sustainability.

Whether for camping, emergency preparedness, off-grid living, or reducing your environmental impact, there's a solar power bank tailored to your lifestyle.

Choosing a solar power bank is more than just picking a gadget; it's about embracing freedom, preparedness, and a greener way of life. Let's harness the sun's energy to stay connected, prepared, and a step closer to a sustainable future.

The power is in our hands, and the possibilities are as endless as the daylight.

All things considered, it’s clear to me that the Solgaard Juicepack is the best solar power bank on this list.

4 hours of sunlight can charge your smartphone, there are dual USB slots for charging your devices, and it’s very lightweight and portable when camping.

It even has 5 LED indicator lights to let you know when it needs charging.

The Solgaard's pure portability, durability, and convenience make it my #1 pick for sure.

Plug me in!

I Recommend


Solgaard Juicepack power bank

Joe is passionate about environmentalism and the effect it has on our planet. He’s been a vegetarian for 10 years and is very strict about recycling in his apartment. As well as writing, he likes to spend time singing, playing the guitar, and defending pineapple on pizza.

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