If you are comparing the Bluetti AC300 vs EcoFlow Delta Pro you are looking for a portable power station with a good amount of power. Probably you want to use it for power outages, long camping trips with the RV, or on a construction site?
Regardless of what you want to use it for, our experts made this one-on-one comparison to make it easier to understand which one is best for you.
Read our other Portable Power Station Reviews or learn what the TOP performers are for different occasions: TOP 10 BEST Portable Power Stations, BEST Portable Power Stations for Camping, BEST Portable Power Stations for Power Outage, BEST Portable Power Station under $200, BEST Portable Power Station for Refrigerator.
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Comparison Table: Bluetti AC300 vs EcoFlow Delta Pro
 |  | |
Capacity | Modular (with B300K, each 2,764.8Wh, up to 11kWh with 4 extra batteries) | 3600Wh (expandable to 10.8kWh with 2 extra batteries) |
AC output | 6 x 120V/20A, 1 x 120V/30A TT-30, 3000W total | 5 x AC outlets, 3600W total (X-Boost up to 4500W) |
Inverter Type | Pure Sine Wave | Pure Sine Wave |
Surge power | 6000W | 7200W |
USB-A | 2 x 5V/3A, 2 x 18W Fast Charge | 2 x 5V/2.4A, 2 x 18W Fast Charge |
USB-C | 1 x 100W | 2 x 100W Max (5V–20V, 5A) |
DC outlets | 1 x 12V/30A RV, 1 x 24V/10A Car Output | 1 x 12.6V/10A Car, 2 x DC5521 (12.6V/3A), 1 x Anderson (30A) |
Wireless charging | 2 x 15W Pads | Not available |
AC input | Max. 3000W | Max. 3000W (240V), 1800W (120V) |
Solar input | Max. 2400W, 12–150VDC, 12A x 2 | Max. 1600W, 11–150VDC, 15A |
Car input | 12V/24V via cigarette lighter | 12V/24V battery, 8A |
Max combined input | 5400W (AC + solar) | 4600W (AC + solar), with extra Smart Generator 6500W |
Expandability | Up to 4 x B300K modules (max. 11kWh) per AC300 = 1 set. Possible to link more sets for more capacity and power. | Up to 2 extra batteries or Smart Generator per Delta Pro = 1 set. Possible to link more sets for more capacity and power (up to 25kWh). |
Battery technology | LFP | LFP |
Life cyles | 4,000+ (80%) | 6500 cycles (to 50%), 3500 cycles (to 80%) |
App control | Yes (WiFi & Bluetooth) | Yes (WiFi & Bluetooth) |
Pass-through charging | Yes | Yes |
Weight | Inverter AC300: 47.6 lbs / 21.6 kg Battery B300K: 65.04lbs / 29.5kg | 45 kg / 99 lbs |
Dimensions | Inverter AC300: 20.5 x 12.5 x 14.1in / 52 x 32 x 35.8 cm Battery B300K: 20.67 × 12.87 × 8.23in / 52.5 × 32.7 × 20.9cm | 25*11.2*16.4 in / 63.5 x 28.4 x 42 cm |
Operating temperature | -4℉ to 104℉ -20°C to 40°C | Not specified |
Warranty | 4 years | 2 years |
Normal retail price | 2.499,- | 3.699,- |
4,1/5 | 4,7/5 |
Key Features Comparison: Bluetti AC300 vs EcoFlow Delta Pro
Power/Performance – Winner: EcoFlow Delta Pro
There is no doubt that both the AC300 and Delta Pro are capable of functioning as whole-house backups in case of a power outage. Both models have the right specs and are up to the task.
However, in terms of battery capacity and power, the EcoFlow Delta Pro outperforms the AC300 from Bluetti.
It has a battery capacity of 3600Wh instead of 2700Wh on the Bluetti and can deliver power up to 3600W (even 4500W in X-Boost mode) compared to 3000W on the Bluetti competitor.
Also, surge power is higher with 7200W on the Delta Pro compared to 6000W on the AC300.
In this category, the EcoFlow Delta Pro takes the lead.
Portability & Design – Winner: Bluetti AC300
In terms of portability and design, it’s a different story. The EcoFlow Delta Pro is built with an inverter and battery in the same housing. It’s quite heavy, but EcoFlow did a good job of making it portable by adding two wheels and a foldable handle. This makes it possible to move it around like a suitcase.
However, Bluetti went with a modular design. They’ve built the AC300 inverter without the battery. This way, you can choose which batteries (must be compatible with the AC300) and how many you want to use—for instance, the B300K battery.
The EcoFlow weighs 99 lbs, which is quite heavy. At Bluetti, almost the same weight is divided over two units. Hence, this makes the AC300 + B300K much more portable compared to the Delta Pro.
Battery Life and Expandability – Winner: EcoFlow Delta Pro
The advertised battery life cycle is a bit better on the Bluetti AC300 than on the EcoFlow Delta Pro. However, whether this makes a big difference in real life is questionable.
In terms of expandability, the EcoFlow Delta Pro definitely has some advantages over the Bluetti. To gain almost exactly the same battery capacity (11kWh), the Bluetti needs four batteries in total. The EcoFlow needs only two additional batteries.
In addition, the modular design and the method used to connect the inverter to the batteries also have a downside. The thick cable connecting the inverter to one or more batteries takes up quite a bit of space.
Charging Time and Solar Compatibility – Winner: Bluetti AC300
A clear winner here: the Bluetti AC300.
It has a max combined input of 5400W instead of 4600W on the EcoFlow. That’s when you use both AC charging and solar charging at the same time.
Also, the solar charging capabilities of the Bluetti are much better. It can handle 2400W of solar power instead of 1600W.
In theory, this means that the Bluetti AC300 will charge a lot faster than the EcoFlow Delta Pro.
Price and Value for Money – Winner: EcoFlow Delta Pro
Both solar generators offer good value for money. The official retail price of the Bluetti is a lot cheaper compared to the Delta Pro. However, after discounts (click our buttons), the difference between the two becomes a lot smaller.
Given the slightly better quality of the EcoFlow and its superior power and capacity features, we would be willing to pay a little extra for the EcoFlow Delta Pro.
Pros and Cons of the Bluetti AC300
Pros
- Modular design allows flexible battery expansion.
- High solar input capacity (up to 2400W).
- High combined input (up to 5400W with AC + solar).
- Supports pass-through charging.
- Includes two 15W wireless charging pads.
- Expandable up to 12,288Wh with four B300 batteries.
- Pure sine wave inverter for clean, stable power.
- App control via Wi-Fi and Bluetooth.
- Certified for safety (FCC, UL, CE, etc.).
- Comes with a 4-year warranty.
Cons
- No built-in battery; requires a B300 to operate.
- Bulkier overall setup with external battery and cables.
- Lower base battery capacity compared to competitors.
- Total system weight is still heavy despite being modular.
- Only one USB-C port available.
- Setup is more complex for first-time users.
- Full setup can become costly with additional batteries and accessories.
Pros and Cons of the EcoFlow Delta Pro
Pros
- High base battery capacity (3600Wh).
- Strong power output (3600W, 4500W with X-Boost).
- High surge power (7200W).
- All-in-one design with built-in inverter and battery.
- Multiple output options, including 2 x 100W USB-C ports.
- Expandable up to 10.8kWh with extra batteries.
- Fast AC charging up to 3000W.
- Supports combined input up to 4600W (6500W with Smart Generator).
- Durable LFP battery with long cycle life (up to 6500 cycles).
- App control via Wi-Fi and Bluetooth.
- Wheels and handle for easy transport.
Cons
- Heavy unit at 99 lbs (45 kg).
- Less solar input capacity (1600W max).
- Less modular—expansion requires specific EcoFlow batteries.
- Higher price compared to some competitors.
- No wireless charging pads.
- All weight is in a single unit, harder to lift or carry.
- Requires 240V outlet for fastest AC charging (not always available).
Real-Life Use Cases
When to Choose Bluetti AC300+B300K
You should choose the Bluetti AC300 when flexibility, solar performance, modularity, and budget are key to your needs.
It’s perfect for:
- Off-Grid Living or Cabins: The AC300’s high solar input (2400W) and modular expandability make it ideal for full-time off-grid setups. You can start with one B300 battery and expand up to four as your needs grow.
- Flexible Energy Needs (Expandable Storage): If your power requirements might increase later, the modular battery system gives you the flexibility to scale up storage without replacing the whole unit.
- Solar-Heavy Charging Scenarios: If you’re relying mainly on solar panels for charging, the Bluetti’s higher solar input capacity (2400W vs 1600W on the Delta Pro) enables faster and more efficient solar charging.
- Semi-Permanent Installations (e.g. Tiny Homes, Workshops): The separate inverter and battery units can be mounted or arranged flexibly, which is useful in custom or tight spaces where an all-in-one box wouldn’t fit well.
- RV or Van Life: Its 12V/30A RV outlet, regulated DC ports, and modular nature make it a great fit for RVers or vanlifers looking to customize their energy setup.
- Easier Manual Handling: Because the battery and inverter are separate, you’re lifting lighter pieces. This makes it more manageable if you’re moving or repositioning the setup frequently.
- Use With Larger Solar Arrays: If you already have or plan to install a larger array (more than 1600W), Bluetti is the better fit to take advantage of the extra solar capacity.
Bluetti AC300 Review score: 4.1/5 stars
Best for flexible, solar-heavy setups and expandable off-grid power.
Best DealWhen to Choose EcoFlow Delta Pro
You should choose the EcoFlow Delta Pro when you need maximum power in a single unit, plug-and-play simplicity, and top-tier expandability for serious home or mobile backup. Here are the most fitting use cases where the Delta Pro shines:
- Whole-Home Backup Power: With its 3600W output (up to 4500W with X-Boost) and 7200W surge capacity, the Delta Pro can power heavy-duty appliances like fridges, freezers, air conditioners, and even some electric cooktops — making it ideal for emergency home backup.
- Simple, All-in-One Plug-and-Play Setup: If you want a solution that works right out of the box with no need to connect external batteries or cables, the Delta Pro is perfect. Great for non-technical users or quick deployment during outages.
- Mobile Use With Heavy Power Needs (e.g., Contractors, Event Setups): The built-in wheels and telescoping handle make it surprisingly portable for its power. It’s ideal for job sites, outdoor events, or mobile businesses that need serious power but also move often.
- High Power Appliance Support: If you’re running power-hungry tools or multiple large appliances simultaneously, the Delta Pro’s high output (and X-Boost feature) gives you the extra headroom Bluetti lacks.
- Long-Term Investment With Expandability: The Delta Pro can expand up to 10.8kWh with two Smart Extra Batteries, and even connect to a Smart Home Panel for automatic switchover during grid outages.
- Smart Generator & EV Charging Compatibility: It’s one of the few portable power stations that supports direct EV charging and integration with a gasoline-powered Smart Generator, giving you hybrid backup options.
- Smart Control & Monitoring: With a highly functional mobile app, Wi-Fi/Bluetooth, and firmware updates, it’s excellent for tech-savvy users who want to monitor and optimize usage remotely.
EcoFlow Delta Pro Review Score: 4.7/5 Stars
Ideal for high power needs in a portable, all-in-one backup solution.
Best PriceFAQs – Bluetti AC300 vs EcoFlow Delta Pro
What is the difference between DELTA Pro and Bluetti AC300?
The Delta Pro is an all-in-one unit with higher output power, while the AC300 is modular, offering more flexible solar input and expandability.
Is EcoFlow better than Bluetti?
EcoFlow is better for plug-and-play power and portability; Bluetti excels in solar performance and modular flexibility.
Is EcoFlow Delta Pro worth it?
Yes, if you need high power output, expandability, and an easy home backup solution.
Is EcoFlow a Chinese company?
Yes, EcoFlow is based in Shenzhen, China.
Is BLUETTI a Chinese brand?
Yes, Bluetti is also a Chinese brand, with global operations and support.
How many kWh is EcoFlow Delta Pro?
The base unit has 3.6 kWh, expandable up to 25 kWh with extra batteries and unit.
Conclusion: Bluetti AC300 vs EcoFlow Delta Pro?
Both the Bluetti AC300 and EcoFlow Delta Pro are powerful and reliable portable power stations. However, they serve slightly different needs.
The AC300 is best for users who value modular flexibility, superior solar input, and off-grid adaptability. On the other hand, the Delta Pro is ideal for those who want a high-output, all-in-one system for home backup and mobile use.
Your choice ultimately depends on whether you prioritize customization and solar charging (Bluetti) or convenience and raw power (EcoFlow).
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