A solar power bank

is a portable charging device that uses solar panels to convert sunlight into electrical energy, which can then be stored in its internal battery. Solar power banks can be especially useful in situations where access to traditional power sources is limited, such as when camping, hiking, or during power outages. Here’s what you should consider when choosing a solar power bank:

Solar Panel Efficiency.
The efficiency of the solar panels determines how quickly they can convert sunlight into usable energy. Look for power banks with higher solar panel efficiency ratings for better charging performance.

Battery Capacity.
Just like with regular power banks, the battery capacity of a solar power bank dictates how much charge it can store. Choose a capacity that aligns with your charging needs, and remember that the solar charging aspect might not fully replace the need for traditional charging methods.

Charging Speed.
Solar charging is generally slower than charging from an electrical outlet. Consider how much time you’ll be spending in sunlight and whether the solar panel’s charging speed will be sufficient for your needs.

Number of Outputs and Types.
Check the number and types of output ports the solar power bank offers. Ensure it has the right types of ports for your devices (USB-A, USB-C, etc.), and consider the number of devices you’ll be charging simultaneously.

Durability and Build Quality.
Since solar power banks are likely to be used in outdoor and rugged environments, choose one with a durable and water-resistant design. Look for materials that can withstand rough handling and exposure to the elements.

Foldable or Portable Design

Some solar power banks have foldable solar panels, making them more compact and easier to carry. This can be especially beneficial if you’re backpacking or have limited space.

Built-in Battery vs. Solar Only.
Some solar power banks have only a small internal battery designed to be topped up by solar charging. Others have larger batteries that can be charged both by the sun and through traditional charging methods. Consider whether you want a power bank that relies solely on solar charging or one that combines solar with regular charging.

Weight and Portability.
Depending on your intended use, weight and portability can be important factors. Lighter options are more suitable for activities like hiking, while slightly heavier options may offer larger capacities.

Integrated Features.
Some solar power banks come with additional features such as LED lights, built-in compasses, or carabiners for easy attachment to backpacks or tents. These features can enhance the utility of the power bank.

Price.
Solar power banks can vary in price depending on their features and quality. Balance your budget with the features you need to find a suitable option.

To summarize the above

[How to choose a power bank]
Reading user reviews and ratings can give you insights into real-world performance and durability. Look for feedback on the actual solar charging capabilities and the overall usability of the power bank.

Remember that while solar power banks can be a convenient solution, they might not be as reliable as traditional power banks in situations where sunlight is limited or inconsistent. It’s a good idea to have a backup charging plan, especially for critical devices.