In the realm of portable power stations, the Bluetti AC500 vs EcoFlow Delta Pro 3 stand out as formidable contenders. Both units offer substantial energy solutions suitable for home backup, off-grid living, and emergency preparedness. This detailed comparison examines their specifications, features, and performance to assist you in making an informed decision.
Contents
Differences Bluetti AC500 vs EcoFlow Delta Pro 3
Below is a summary of the specifications:
Battery Capacity, Expandability, and Lifespan
The Bluetti AC500 features a modular design, necessitating external B300 battery packs for operation. Each B300 pack provides 3,072Wh, allowing users to expand the system up to 18,432Wh by connecting six B300 units. This flexibility enables customization based on specific energy needs. The LiFePO₄ (LFP) battery chemistry ensures a lifespan exceeding 3,500 cycles to 80% capacity, promoting long-term reliability.
In contrast, the EcoFlow Delta Pro 3 comes with an integrated 3,600Wh battery, expandable up to 25,000Wh with additional batteries. Utilizing LiFePO₄ technology, it offers a lifespan of over 4,000 cycles to 80% capacity, slightly surpassing the Bluetti AC500 in durability.
Winner: Bluetti AC500
Its modular expandability provides greater flexibility for users with evolving energy requirements.

Power Output and Device Compatibility
The Bluetti AC500 delivers a robust 5,000W continuous AC output, with a surge capacity of 10,000W. This substantial power output can handle heavy-duty appliances and multiple devices simultaneously, making it suitable for both residential backup and off-grid applications.
In comparison, the EcoFlow Delta Pro 3 offers a 3,600W continuous AC output and a 7,200W surge capacity. While slightly less powerful, it remains capable of running most household appliances and power tools effectively.
Winner: Bluetti AC500
Its higher continuous and surge power capacities make it more adept at managing demanding energy loads.
Charging Speed and Solar Input
Charging efficiency is crucial for maintaining continuous power availability. The Bluetti AC500 supports dual charging, combining AC and solar inputs for a total of 4,500W, significantly reducing charging times. Its 3,000W solar input capacity allows for substantial solar energy utilization, ideal for sustainable, off-grid living.
The EcoFlow Delta Pro 3 offers an AC charging speed of 1,800W and supports up to 1,600W of solar input. While efficient, it falls short of the Bluetti’s rapid charging capabilities and solar input potential.
Winner: Bluetti AC500
Superior charging speeds and higher solar input capacity make it more suitable for users prioritizing quick recharge times and renewable energy integration.

Ports and Output Variety
Both power stations provide a comprehensive array of ports to accommodate various devices. The Bluetti AC500 includes two 100W USB-C ports, two 15W USB-A ports, two 18W Quick Charge USB-A ports, and a 12V/10A car port.
Similarly, the EcoFlow Delta Pro 3 offers two 100W USB-C ports, two 12W USB-A ports, two 18W Quick Charge USB-A ports, and a 12.6V/10A car port. Both units offer ample connectivity for charging smartphones, laptops, and other electronic devices, with high-wattage USB-C ports catering to modern gadgets requiring substantial power.
Winner: Tie
Both models provide versatile and sufficient port options to meet diverse user needs.
Portability and Weight
Portability is a significant consideration for users needing mobile power solutions. The Bluetti AC500 inverter unit weighs 66.2 lbs (30 kg), with each B300 battery pack adding approximately 79.6 lbs (36.1 kg). While the modular design allows for segmented transportation, the combined weight can be substantial.
The EcoFlow Delta Pro 3 is a single unit weighing 99 lbs (45 kg). Despite its heft, the integrated design and built-in wheels enhance maneuverability, facilitating easier transport.
Winner: EcoFlow Delta Pro 3
The integrated design with mobility features offers greater ease of movement despite its overall weight.
Connectivity and Smart Features
Both the Bluetti AC500 and EcoFlow Delta Pro 3 are equipped with Wi-Fi and Bluetooth capabilities, enabling remote monitoring and control via dedicated mobile applications. These apps allow users to track real-time energy consumption, manage settings, and receive firmware updates, enhancing the user experience through smart technology integration.
Winner: Tie
Both units provide advanced connectivity features that cater to tech-savvy users seeking remote management capabilities.
Quick Rundown Of Bluetti AC500
Quick Rundown Of EcoFlow Delta Pro 3
Conclusion
Choosing between the Bluetti AC500 and the EcoFlow Delta Pro 3 ultimately depends on your energy needs and use case. Both power stations are high-end, long-lasting solutions with strong performance in off-grid, backup, or professional environments.
The Bluetti AC500 is clearly the superior option for users needing maximum output, faster charging, and greater customization through its modular battery system. With up to 5,000W of AC power, 3,000W solar input, and expandability to 18,432Wh, it’s an ideal solution for homes, RVs, and demanding off-grid projects.
The EcoFlow Delta Pro 3 offers a more integrated and portable experience, appealing to users who want plug-and-play simplicity with a large built-in battery. While not quite as powerful or modular, it’s still a reliable and highly capable solution with excellent smart features and expandability up to 25,000Wh.
Overall Winner: Bluetti AC500
With higher AC output, superior solar and dual charging, and a flexible modular system, the AC500 offers more raw power and scalability — making it the ultimate choice for those who demand performance and flexibility above all.