In the expanding landscape of compact portable power stations, the Anker 521 vs Jackery Explorer 300 Plus are two of the most compelling options for users seeking a blend of mobility, lithium iron phosphate (LFP) battery chemistry, and everyday practicality. Both power stations fall into the sub-300Wh category, ideal for weekend campers, off-grid professionals, digital nomads, and users looking for reliable emergency backup without excessive weight or bulk.
Although both units serve similar use cases, they differ in several critical categories, including battery lifespan, AC output, charging speed, port selection, and smart features. In this detailed comparison, we break down the technical and practical strengths of each model to help determine which one stands out as the better all-around choice.
Contents
Differences Anker 521 vs Jackery Explorer 300 Plus
Below is a summary of the specifications:
Battery Capacity, Expandability, and Lifespan
The Jackery Explorer 300 Plus features a 288Wh lithium iron phosphate battery, offering slightly more usable energy than the Anker 521 PowerHouse, which has a 256Wh LFP battery. This means the Jackery can provide more runtime per charge for high-draw devices or longer usage during multi-day trips.
Both products utilize LiFePO₄ battery chemistry, which is known for excellent thermal safety, slow degradation, and high cycle longevity. The Anker 521 is rated for 3,000+ cycles to 80% capacity, outperforming the Jackery 300 Plus, which is rated for 2,000 cycles.
Neither model supports battery expansion, so long-term users must evaluate whether more capacity per cycle or more cycles per battery better suits their needs.
Winner: Anker 521 PowerHouse
While the Jackery has a higher capacity, the Anker’s superior cycle count provides better long-term durability, making it the better option for daily or high-frequency users.
Power Output and Appliance Compatibility
The Jackery Explorer 300 Plus is equipped with a 300W AC inverter, peaking at 600W surge output, and offers a broader margin for powering devices such as CPAP machines, laptops, projectors, portable coolers, and small appliances. It includes a single pure sine wave AC outlet.
The Anker 521, on the other hand, provides 200W continuous AC power with a 450W surge, making it suitable for low- to mid-draw devices like phones, tablets, LED lights, drones, routers, and portable fans. It includes two AC outlets, which improves its functionality for powering multiple AC devices simultaneously, as long as total wattage remains under 200W.
The difference in power handling is significant for users who rely on heavier AC loads, especially for extended or emergency use cases.
Winner: Jackery Explorer 300 Plus
With a higher output rating and greater surge capability, the Jackery handles a wider range of devices, offering more flexibility for varied power demands.
Charging Speed and Input Options
When it comes to charging speed, the Jackery Explorer 300 Plus is clearly ahead. It supports 300W AC input, charging the battery from 0 to 100% in just 2 hours. This is particularly useful for users who need quick turnaround times between power cycles or operate in environments with limited access to charging sources.
The Anker 521 charges via 65W AC input, requiring approximately 4.5 hours to reach full capacity. It also supports 65W solar input, compared to the Jackery’s 100W MPPT solar input, allowing the Jackery to take fuller advantage of high-output solar panels.
Both models support 12V car charging, but neither supports 24V vehicle input.
Winner: Jackery Explorer 300 Plus
With faster AC charging and more solar intake, the Jackery model is the better performer in recharge efficiency, making it ideal for users on tight schedules or limited solar windows.
Portability and Physical Design
The Anker 521 weighs 3.7 kg, while the Jackery Explorer 300 Plus weighs slightly more at 3.75 kg. The difference is negligible in practice. Both units are compact enough to fit in a backpack, car trunk, or under a van bench.
In terms of design, the Anker 521 adopts a vertical layout, with ports positioned on the front panel for ease of access. It features a clean digital display and rubber feet for added stability. The design feels modern and practical.
The Jackery 300 Plus has a more traditional horizontal layout, with its signature orange-and-gray exterior and curved corners. Its screen is minimal but clear, and its body is rugged enough for outdoor usage.
Winner: Tie
Both are portable, well-built, and designed for travel. Preference depends on whether you prioritize a vertical or horizontal form factor.
Smart Features and App Connectivity
The Jackery Explorer 300 Plus includes Bluetooth support and connects to the Jackery mobile app. Through the app, users can check real-time battery stats, monitor input/output power, adjust settings, and update firmware. The app interface is basic but functional, providing added convenience for monitoring without needing to access the screen manually.
The Anker 521 does not include any smart connectivity. All operation is manual, using onboard buttons and the integrated LCD display. While simple and reliable, the lack of app-based control limits remote monitoring and advanced settings.
Winner: Jackery Explorer 300 Plus
Smart connectivity via Bluetooth and app integration makes the 300 Plus more modern and convenient, especially for users who prefer real-time data access and wireless monitoring.
Ports and Output Variety
The Anker 521 includes two AC outlets, two USB-A ports, one 60W USB-C PD port, and a 12V car port. The dual AC outlets provide more flexibility when powering two AC devices at once, and the USB-C port can charge most laptops and modern electronics directly.
The Jackery Explorer 300 Plus features one AC outlet, two USB-A ports, one 100W USB-C PD port, and a 12V car outlet. The highlight here is the 100W USB-C port, which supports fast charging for power-hungry laptops, gaming devices, or high-capacity tablets.
Both units include pure sine wave AC output and support a range of everyday devices. The Anker 521 gains points for AC port count, while the Jackery excels in USB-C performance.
Winner: Tie
The Anker offers more AC outlets, but Jackery’s USB-C speed is higher. Users will need to choose based on whether they prioritize AC flexibility or high-speed USB-C output.
Quick Rundown Of Anker 521
Quick Rundown Of Jackery Explorer 300 Plus
Conclusion
Choose the Jackery Explorer 300 Plus if you want more AC power, faster charging, and modern app features. It’s ideal for those who need to charge power-hungry devices, enjoy shorter recharge times, and prefer smartphone-based monitoring. The 300W inverter makes it more capable for versatile off-grid use.
Choose the Anker 521 PowerHouse if you prioritize exceptional battery longevity, dual AC outlet flexibility, and simplicity. It’s a great choice for long-term daily use, remote work, and consistent light-duty power needs where durability matters more than raw wattage.
Overall Winner: Jackery Explorer 300 Plus
While the Anker 521 impresses with unmatched battery lifespan and clean design, the Jackery Explorer 300 Plus stands out as a more powerful, connected, and efficient all-rounder—offering greater output, quicker recharge times, and smart features that cater to today’s mobile users.