EcoFlow Delta Pro vs Bluetti AC300: Portable Power Station Showdown

Jun 15, 2025

Need serious juice for your gadgets or fridge when the lights go out? The EcoFlow Delta Pro wins for power and speed, but the Bluetti AC300 is a budget-friendly, expandable beast. If you’re shopping Portable Power Stations, keep reading—we’re breaking down which one truly amps up your life.

Head-to-Head: Core Specs and Out-of-the-Box Performance

Power, Capacity, and Charging Speeds

The EcoFlow Delta Pro and Bluetti AC300 are both leading options in the portable power world. They each offer high capacity and fast charging, but the differences in their setups make a big impact.

EcoFlow Delta Pro portable power station viewed from the back right on a white background.

Inverter Output and Surge Wattage

The Delta Pro supports up to 1800W AC input, or up to 3000W+ when combining AC, solar, and EV charging.

The AC300 offers 3000W continuous output, and up to 6000W surge. Both are capable of handling heavy-duty appliances, though the Delta Pro edges ahead in raw power.

Internal vs. External Battery and Base Capacity (Wh)

EcoFlow’s Delta Pro has an integrated 3600Wh battery. It’s ready to go straight out of the box.

In contrast, the Bluetti AC300 requires an external B300 battery to operate. With one B300, you get 3072Wh capacity, but you’ll need to purchase it separately.

Max AC and Solar Charging Input (W)

The Delta Pro supports up to 3600W AC input and 1600W solar charging. It can go from 0–80% in about 1.1 hours with a 2.4kW input.

The AC300 accepts up to 3000W from AC and 2400W from solar. While solar input is stronger on the Bluetti, EcoFlow takes the lead on AC charging speed.

Battery Chemistry and Lifespan (LiFePO4 Cycles)

Both stations use reliable LiFePO4 battery technology.

You can expect roughly 3,500+ charge cycles to 80% capacity with either unit. That means strong long-term performance, whichever model you choose.

Design, Usability, and Ports

The All-in-One vs. Modular Design Approach

The EcoFlow Delta Pro features an all-in-one design. Battery and inverter come in a single body, making it simple and convenient.

The Bluetti AC300 takes a modular approach. It needs a separate battery (B300), but offers more flexibility for users who want to expand their setup gradually.

Bluetti portable power station showing AC outlets and display, on a transparent background.

Weight, Dimensions, and Portability (Wheels vs. Handles)

The Delta Pro weighs around 50kg, but includes wheels and a telescopic handle. Despite its size, this makes it easier to transport than it looks.

The AC300 weighs ~21.6kg, but since it requires the 36.1kg B300 battery to function, the combined system weight is around 58kg.

Outlet Selection and Availability (AC, DC, USB)

Both units include 6 AC outlets and various USB options.

The Delta Pro includes USB-A, USB-C, and a 12V car port. The AC300 also has USB-A, USB-C, and multiple DC output options.

In practice, both are versatile enough to power everything from phones to fridges.

Ecosystem, Use Cases, and Final Verdict

Expandability and Home Integration

Maximum Expandable Capacity (Adding B300 vs. Smart Batteries)

The Delta Pro starts with 3.6kWh and can expand all the way to 25kWh using additional Smart Batteries.

The AC300, with up to four B300 batteries, maxes out at 12.24kWh. EcoFlow clearly leads when it comes to long-term expansion.

Achieving 240V for Heavy-Duty Appliances

Both systems support split-phase setups for 240V appliances.

You’ll need to pair two Delta Pros or two AC300s to achieve this. Either option will work for running larger equipment like dryers or well pumps.

Smart Home Panel and UPS Functionality

EcoFlow offers a Smart Home Panel for easy home integration. It turns the Delta Pro into a seamless backup system with automatic switchover.

Bluetti supports UPS functionality too and can be connected via transfer switch. Both are viable for backup use, but EcoFlow’s system is a bit more streamlined.

Person pulling EcoFlow Delta Pro power station on gravel near a trailer in an outdoor camping setting.

Who Should Buy Which Power Station?

The Ideal EcoFlow Delta Pro User (e.g., EV owner, needs portability)

If you want maximum power, fast recharging, and simple plug-and-play use, the EcoFlow Delta Pro is ideal.

It’s great for EV owners, full-time travellers, and those who want a portable yet powerful solution right out of the box.

The Ideal Bluetti AC300 User (e.g., stationary home backup, modular focus)

If you prefer to build your system gradually and don’t mind a stationary setup, the Bluetti AC300 is a strong pick.

Its modular nature suits people setting up backup power in cabins, basements, or for selective home circuits.

Price vs. Long-Term Value and Warranty

The EcoFlow Delta Pro retails for around £2,499. It includes its main battery and offers greater expandability, faster AC charging, and portability.

The Bluetti AC300 starts at £2,299, but the required B300 battery (~£1,799) must be purchased separately. This makes the full cost closer to or even higher than the Delta Pro, depending on your setup.

EcoFlow’s value becomes clearer the more you use and expand it. Both are investments—but for long-term use, Delta Pro typically offers better value.

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