Portable power stations have become essential for camping, emergency backup, and off-grid adventures, and Anker has established itself as a trusted brand in this space. The Anker 521 and Anker Solix C300 are two compact and efficient power stations that offer portable energy solutions for a variety of needs. While both models cater to users looking for reliable, lightweight power sources, they differ in battery capacity, charging speed, and overall performance.
In this comparison, we analyze the key features, power output, battery life, portability, and charging capabilities of the Anker 521 vs. Anker Solix C300, helping you determine which model is the better fit for your power needs.
Contents
Differences Anker 521 vs Anker Solix C300
Below is a summary of the specifications:
Battery Capacity and Power Output
Battery capacity plays a crucial role in determining how long a power station can run your devices. The Anker 521 features a 256Wh battery, making it ideal for charging smartphones, laptops, tablets, and other small devices.
In comparison, the Anker Solix C300 offers 300Wh, which is a noticeable improvement in capacity. The extra watt-hours translate to longer runtimes, making it better suited for powering larger devices like mini-fridges or LED lights for extended periods.
Additionally, the Anker 521 provides 200W of continuous power with a peak of 400W, whereas the Solix C300 delivers 300W of continuous power and a 600W surge capacity. The higher power output of the C300 makes it more versatile, as it can handle more energy-intensive devices without issue.
Winner: Anker Solix C300
With higher battery capacity and better power output, the Anker Solix C300 is the more powerful option for users who need more energy for longer durations.
Charging Speed and Solar Input
Fast charging and solar input are essential features for efficient energy replenishment. The Anker 521 supports AC recharging in about 2.5 hours, while the Solix C300 can fully recharge in just 2 hours, making it the faster option.
For solar charging, the Anker 521 can accept up to 65W of solar input, whereas the Solix C300 supports up to 100W of solar input, making it significantly better suited for off-grid or sustainable energy setups. The higher solar input capability of the C300 allows it to recharge more quickly using renewable energy sources, making it a great option for outdoor enthusiasts and emergency backup situations.
Winner: Anker Solix C300
The faster AC recharging time and higher solar input capacity give the Solix C300 a clear advantage for users prioritizing quick energy replenishment.
Portability and Design
Both power stations are lightweight and compact, making them easy to transport for camping, road trips, and emergency backup use. The Anker 521 weighs 8.2 lbs (3.7 kg), while the Solix C300 weighs slightly more at 8.8 lbs (4 kg). The difference is minimal, and both models are still highly portable.
In terms of design, both power stations have an easy-to-carry handle and a compact form factor that allows them to fit in car trunks, backpacks, or under desks for home use. The slightly larger battery of the Solix C300 does not significantly impact its portability, making it a better overall choice for users who need more power without sacrificing mobility.
Winner: Tie
Both models offer excellent portability, and the weight difference is negligible.
Durability and Battery Lifespan
Both the Anker 521 and Solix C300 utilize LiFePO₄ (LFP) battery technology, known for long lifespan, safety, and stability. Each model is rated for 3,000+ charge cycles before reaching 80% capacity, ensuring years of reliable performance.
The sturdy construction and efficient battery management system (BMS) in both models make them reliable choices for long-term use.
Winner: Tie
Both power stations offer excellent durability and long-lasting battery technology.
Output Ports and Device Compatibility
Both power stations come with multiple charging ports, but the Anker Solix C300 has the edge in versatility.
The Anker 521 includes a single USB-C port (60W), two USB-A ports, a car outlet, and two AC outlets (200W total). This setup is sufficient for most small appliances and charging needs.
The Anker Solix C300, however, features a USB-C port with 100W output, allowing faster charging for laptops and high-power devices. It also provides a total of 300W across its AC outlets, making it more compatible with a wider range of electronics, including small refrigerators, fans, and medical devices.
Winner: Anker Solix C300
The higher AC output and faster USB-C charging port make the Solix C300 more versatile for modern electronics and appliances.
Quick Rundown Of Anker 521
- 10 Years of Long-Lasting Power: Anker 521 Portable Power Station is built to last over a decade, even with everyday use with our InfiniPower...
- USB-C Port Built In: Ditch bulky adapters and use a single cable for fast charging your laptop with the built-in USB-C port. It's compatible with...
- 600W of Upgraded Power: Anker 521 Portable Power Station uses SurgePower to run high-wattage appliances up to 600W.
- 256Wh Capacity for Weekend Trips: When you're getting away for the weekend, bring Anker 521 Portable Power Station to charge your devices and...
- 6 Ports for More Charging: Plug in 6 devices or appliances for your weekend getaway. The power station comes with 2 AC ports, 2 USB-A ports, a...
Quick Rundown Of Anker Solix C300
- Compact with Massive Power: It's portable power that moves as freely as you. Give your devices 300W (600W Surge) and 288Wh. Fast charge with 140W...
- 8 Device Charging Ports: Power all your tech with versatile ports, including 3× AC (300W), 1× car socket (120W), 2× USB-C (140W), 1× USB-C...
- Travel-Friendly Design: Attach the strap(sold separately) or simply carry this power station. It's 15% smaller than similar designs and perfect...
- Solar-Powered Escapes: When your journey needs endless charging, do so seamlessly and sustainably with a 100W solar panel. We recommend 100W or...
- Your Choice of Recharging: Recharge to 80% in just 50 minutes with a wall outlet, or use solar panels, your car, or the PD 3.1 USB-C port. Stay...
Conclusion
The Anker Solix C300 is the clear winner for users needing more power, faster charging, and better compatibility with modern electronics. It offers a larger battery, more output power, faster solar charging, and improved port selection, making it the better overall choice for extended off-grid use, camping, and emergency backup.
However, for those on a budget or looking for a more lightweight, basic power station, the Anker 521 remains a solid choice for casual users who need to charge small devices on the go.
Final Recommendation
- Choose the Anker Solix C300 if you need higher power, better solar input, and faster device charging.
- Choose the Anker 521 if you prioritize affordability, portability, and only need to charge small electronics.
For most users, the Anker Solix C300 provides better value and long-term usability.