Anker 521

Anker 521 Portable Power Station Review: Your Reliable Power Companion

In today’s world, where we rely heavily on electronic devices for work, travel, and emergencies, having a reliable portable power source is essential.

The Anker 521 Portable Power Station stands out as a robust and dependable solution for those in need of portable energy.

In this Anker 521 Portable Power Station review, we will dive deep into its features, performance, and how it compares to other power stations on the market.

Overview of the Anker 521 Portable Power Station

The Anker 521 Portable Power Station is designed to provide a reliable power source for a wide range of devices, from smartphones and laptops to small appliances.

With a capacity of 256Wh, it offers ample energy for various uses, making it an excellent choice for camping, emergency backup, and outdoor activities.

Key Features of the Anker 521

  1. High Capacity and Compact Design: The Anker 521 boasts a 256Wh capacity, which is sufficient to charge a smartphone up to 20 times or a laptop 4-5 times. Despite its high capacity, it maintains a compact and lightweight design, weighing only 7.2 pounds, making it easy to carry around.
  2. Multiple Charging Options: This power station comes with multiple charging ports, including:
    • Two AC outlets (110V, 300W)
    • Two USB-A ports (12W each)
    • One USB-C port (60W)
    • One car socket (12V, 10A)
    These options ensure that you can charge multiple devices simultaneously, catering to a variety of power needs.
  3. Durable and Safe: Built with high-quality materials, the Anker 521 is designed to be durable and withstand the rigors of outdoor use. It also includes advanced safety features such as temperature control, short circuit protection, and overcharge protection, ensuring the safety of your devices.
  4. Fast Recharging: The Anker 521 can be recharged via a wall outlet, a car charger, or a compatible solar panel. It takes approximately 6 hours to fully recharge from a wall outlet, making it efficient for regular use.

Performance and User Experience

Power and Efficiency

During our testing, the Anker 521 Portable Power Station demonstrated impressive performance.

It efficiently powered a range of devices, including a mini-fridge, a laptop, and several smartphones, without any issues.

The power output remained stable, and the device ran quietly, which is a significant advantage for both indoor and outdoor use.

Portability and Design

One of the standout features of the Anker 521 is its portability.

The handle design makes it easy to carry, and its compact size allows it to fit comfortably in a car trunk or a camping backpack.

The LED display is clear and informative, providing real-time information on the remaining battery life and power usage.

Comparisons to Competitors

Compared to other portable power stations in its class, the Anker 521 offers a competitive balance of power, portability, and price.

While some competitors may offer higher capacity, they often come with a significant increase in size and weight. The Anker 521 strikes a perfect balance, making it suitable for a wide range of users.

Check out other best power stations on the market, Jackery Portable Power Station Explorer 500

Comparisons to other similar Anker

Anker 521 Anker 535Anker SOLIX C800Anker SOLIX C800 Plus
Capacity256 Wh512 Wh768Wh768Wh
Recharge to 100%2.5h3.4h58min58min
AC Output Power300W / 600W Max500W / 750W Max1200W / 1920W Max1200W / 1920W Max
AC SurgePad Power600W1600W1600W
Output Ports691010
Solar Input65W Max120W Max300W Max300W Max
Battery TypeLiFePO4LiFePO4LiFePO4LiFePO4
Battery Cycle Life3000+3000+3000+3000+

Pros and Cons


  • Compact and lightweight design
  • High capacity for its size
  • Multiple charging ports and options
  • Fast recharging capabilities
  • Durable and safe


  • Slightly longer recharging time compared to some higher-end models
  • No built-in solar panel (requires a separate purchase)


The Anker 521 Portable Power Station is an excellent investment for anyone in need of a reliable and portable power source.

Whether you are preparing for a camping trip, need a backup power supply for emergencies, or simply want a versatile power station for everyday use, the Anker 521 delivers on all fronts.

Its combination of portability, capacity, and safety features makes it a standout choice in the portable power station market.

For more information and to purchase the Anker 521 Portable Power Station, visit the product page.

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