1. Hiluckey Solar Power Bank 25,000mAh — Best Overall
| Pros | Cons |
|---|---|
| – 25,000mAh — largest capacity in this category | – Solar charging is slow (8–10 hours in direct sun for a partial charge) |
| – USB-C PD 22.5W fast charging output | – Bulkier than 10,000mAh options |
| – 4 solar panels (charges faster than single-panel designs) |
Specs: 25,000mAh | 4 solar panels | USB-C PD 22.5W output | IP66 waterproof | ~$40–50
The Hiluckey 25,000mAh Solar Power Bank is the best high-capacity solar power bank available in 2026. Its four solar panels provide faster solar charging than single-panel competitors — in 8–10 hours of direct sunlight, it can add 10–15% charge (a partial top-up, not a full recharge). For a full charge via solar, plan on 25–30 hours — solar power banks are best thought of as “solar-assisted” rather than “solar-powered.”
Where the 25,000mAh capacity truly shines is as a wall-charged emergency bank: it can charge a smartphone 6–8 times, a small tablet 3–4 times, or a pair of earbuds dozens of times. The USB-C PD output charges modern phones quickly.
2. BLAVOR Solar Power Bank 10,000mAh — Best Compact with Wireless Charging
| Pros | Cons |
|---|---|
| – Wireless Qi charging pad — no cable needed for compatible phones | – 10,000mAh capacity — smaller than Hiluckey |
| – Compact and lightweight | IPX5 water resistant | – Wireless charging is slower (5W) |
| – Built-in LED flashlight | Carabiner clip | ~$30–40 |
Specs: 10,000mAh | Wireless Qi 5W | USB-C input | Solar panel | IPX5 | ~$30–40
The BLAVOR Solar Power Bank is the best compact solar power bank for hikers and outdoor enthusiasts. Its Qi wireless charging pad works with any Qi-compatible phone — drop your iPhone or Android on the pad without fumbling for cables at the end of a hiking day. At 10,000mAh it’s not as large as the Hiluckey, but it’s significantly more pocketable.
The built-in flashlight is genuinely useful for camping and the carabiner clip attaches to backpack straps for solar charging while hiking.
3. BigBlue 20,000mAh Solar Power Bank — Best Mid-Size Option
| Pros | Cons |
|---|---|
| – 20,000mAh — good balance of capacity and portability | – Solar charging still slow (15–20 hours for meaningful charge) |
| – USB-C and USB-A outputs | Waterproof | |
| – Reputable brand in solar charging accessories | ~$35–45 |
Specs: 20,000mAh | USB-C + USB-A outputs | Solar panel | Waterproof | ~$35–45
BigBlue has been a trusted name in portable solar charging accessories for years. The BigBlue 20,000mAh sits between the Hiluckey (25,000mAh) and BLAVOR (10,000mAh) in size — a good middle ground if you want more capacity than a 10,000mAh bank without the bulk of a 25,000mAh unit. It can charge a smartphone 5–6 times from a full charge.
How Do I Charge My Solar Phone Charger?
You can charge your solar phone charger by using electricity from a wall socket. Besides, you can also use a solar panel to charge the solar phone charger.
When using electricity or solar panels, you need to make use of a USB charger.
Here are the steps to charge your solar phone charger using electricity:
- Plug the solar phone charger into a USB charger.
- Ensure that the other end of the USB is plugged into your wall socket.
- If you are not making use of a wall socket, you may plug the USB into your computer.
- Observe the LED indicator (usually in most solar phone chargers).
Depending on the solar phone charger model, the led indicator may stop blinking, indicating a full charge.
If you’re charging your solar phone charger via a solar panel, then the process differs.
Here are the steps to follow to charge a solar phone charger with a solar panel:
- Place the solar phone charger in a suitable position to attract direct sunlight.
- Monitor the indicators to confirm the charge progress
The LED indicator may stop blinking, indicating a full charge.
Portable Power Banks – What To Look For Before Purchasing
Portable power banks have become a key asset in the family of phone and electronic chargers.
The main point of these batteries is to charge your devices while on the go when you do not have ready access to a power outlet.
Whether you’re biking, at a sports game, or hiking/backpacking, portable power banks are important for people on the go and who need some extra power close at hand.
In recent years, power banks have stepped up their game in a wide variety of ways.
Let’s get into the details.
Element #1 – Features of Battery Banks
Other than simply charging your device, there have been many innovations to assist with where you’re taking your battery. This includes:
- Battery charge status indicators
- Onboard flashlights
- Water-resistant and rugged housings for the battery
- Built-in solar cells to charge the battery on the go
- Versatile outputs
Element #2 – Battery Capacity
This is one of the most crucial areas to look for when considering the purchase of a portable power bank.
The battery is measured in mAh or milliampere-hours and is an important aspect to consider because it shows you how much juice is in the battery.
For example, chargers range from anywhere from 2,000-30,000mAh.
Explained – Milliampere hour (mAh) rating
Let’s say you had a battery that had 10,000mAh.
When charging a device like an iPhone with this battery, you can charge your phone about 7-8 times over before the battery bank runs out of juice.
Now, if you have an iPad, the standard charge brick that comes with it is rated to handle 2.1 amps, so you can charge your iPad or tablet of similar size for about half the time as an iPhone (5 hours or 3.5-4 times with a 10,000mAh battery).
It’s important to know these measurements to decide which devices you’re going to need to charge while you’re either off the grid completely or without access to a wall outlet for a while.
If you have a tablet, they take more current out of a battery so they will probably need a larger portable power bank to charge it up.
It all depends on what you’re charging.
Element #3 – Charging Rate
With a standard USB 5 Volt output on most portable power banks, the charging rate is typically 1-2 amps or a little more than two amps.
The higher the amperage, the faster your phone or device will charge up.
But you need to make sure that the device you’re charging and the power cable attached can run at a higher current as well before charging.
BEWARE: Some battery banks will give an absurd number of amps on the label or description. For example: “5 amps” or something high like that.
This means that the total amount of amps is spread across all of the ports, so if there are three USB ports, then this means that each port has about 1.7 amps, or that one port is stronger than the other port (2 amps on one port, 2 amps on another, and only 1 amp on the third). Don’t be fooled by these little marketing techniques.
An example of this amperage spread across port options can be found in my article on solar chargers for cell phones.
In the middle of my post, I give three top solar panel chargers and you will see that two of the three options have limits on their amperage “spread” when charging multiple devices.
You can find this post right here: How Long Does It Take a Solar Charger to Charge a Cell Phone?
Overall, these are the main factors to consider before looking to purchase a portable battery bank.
Obviously, it’s easy to get lost in the sauce of all of the different batteries out there, but if you want a battery that will be reliable and sustainable for a while, knowing these measurements are crucial.
Additional perspective: Solar Power Bank vs Power Bank – Which Is Better?