Choosing the right high-capacity solar generator can make or break your off-grid setup. This guide compares the specs, features, and key differences between the EcoFlow Delta Pro and Bluetti AC300 to help you choose the right option for your energy needs.
Based on technical specifications and user feedback, these are two of the most powerful home backup units in the portable power space—each with unique strengths.
EcoFlow Delta Pro vs Bluetti AC300 Specs Comparison
| Feature | EcoFlow Delta Pro | Bluetti AC300 |
|---|---|---|
| Battery Capacity | 3,600Wh (expandable to 25,000Wh) | 0Wh (requires B300 battery, 3,072Wh each, up to 12,288Wh) |
| Inverter Power | 3,600W (7,200W surge) | 3,000W (6,000W surge) |
| Battery Chemistry | LiFePO4 | LiFePO4 |
| Expandability | Up to 2 extra batteries or multiple units in parallel | Up to 4 × B300 batteries |
| Weight | 99 lbs | 47.6 lbs (AC300 only), 79.6 lbs per B300 battery |
| Max Solar Input | 1,600W | 2,400W |
| 240V Compatibility | Yes (via 2 units) | Yes (via Fusion Box and 2 AC300s) |
| 240V Split Phase | Yes | Yes |
| 30A RV Port | Yes | Yes |
| Wi-Fi/App Control | Yes (EcoFlow app) | Yes (Bluetti app) |
| UPS Function | Yes (20ms switchover) | Yes (≤20ms switchover) |
| Price Range | ~$3,699 | ~$3,699 (AC300 + 1 B300 bundle) |
Table Caption: EcoFlow vs Bluetti Specs Comparison
Power & Performance
The EcoFlow Delta Pro offers 3,600W continuous output with a 7,200W surge, making it slightly more powerful than the Bluetti. It can power heavy-duty appliances like dryers or welders when paired with another unit for 240V.
The Bluetti AC300, while rated at 3,000W, is still extremely capable and supports high-demand devices. It also supports split-phase power (240V) when paired with another AC300 and a Fusion Box.
Verdict: Delta Pro has a slight edge in raw output power, especially with high-surge loads.
Battery Capacity & Cycle Life
EcoFlow DELTA Pro Solar Generator (PV220W)
from: EcoFlow
The Delta Pro has a built-in 3,600Wh LiFePO4 battery with 3,500+ cycles to 80%. It can expand up to 25kWh with two Smart Extra Batteries and Smart Home Panel.
The Bluetti AC300 doesn’t include a battery but is designed to work with the B300 (3,072Wh) modules. One AC300 supports up to four B300s (12,288Wh). The B300 also has 3,500+ cycles and includes its own input/output ports.
Verdict: Bluetti offers more modularity but requires an external battery to operate. EcoFlow is ready to go out of the box.
Output Ports & Expandability
Both models include a wide array of AC, DC, USB-A, and USB-C ports, plus a 30A RV port. EcoFlow includes a 240V Anderson output natively, while Bluetti needs the Fusion Box for 240V.
In terms of expandability, both brands offer home integration options and support large battery banks, but Bluetti AC300 supports more storage per unit (up to 12.3kWh).
Verdict: Bluetti wins on modular storage, but EcoFlow is more self-contained and easier to scale without accessories.
Portability & Weight
BLUETTI AC300+B300 / Home Battery Backup
from: BLUETTI US
The Delta Pro weighs 99 lbs but includes built-in wheels and a suitcase-style handle. It’s heavy but maneuverable.
The Bluetti AC300 weighs 47.6 lbs, but each B300 battery adds nearly 80 lbs. Total system weight often exceeds Delta Pro when you add batteries—but the modular design allows easier lifting in pieces.
Verdict: EcoFlow is better for mobile setups; Bluetti is easier to transport in parts.
Charging Options
Both units support AC, solar, car, and generator charging. The Delta Pro also supports EV charging via Level 2 stations and can be recharged at 1,800W from a wall outlet or 1,600W via solar.
The Bluetti AC300 can take in up to 2,400W of solar input, one of the highest on the market, but solar input is spread between two ports (1,200W each). Dual charging with AC + solar can reach up to 5,400W (with multiple batteries).
Verdict: Bluetti offers faster solar charging; EcoFlow is more versatile with EV station compatibility.
Price & Value
Prices are similar, but only the EcoFlow Delta Pro includes a battery in its base price (~$3,699). For Bluetti AC300, you must pair it with at least one B300 battery, bringing the starting cost to roughly the same.
However, Bluetti often includes discounts and bundle deals for extra batteries or Fusion Box.
Verdict: EcoFlow gives more out of the box. Bluetti gives more long-term value for expandable storage.
Final Verdict: Which One Should You Choose?
- Choose EcoFlow Delta Pro if you want a plug-and-play solution with built-in battery, wheels, and easy 240V support. It’s ideal for RVs, home backup, and mobile power users.
- Choose Bluetti AC300 if you prefer modular design, higher solar input, and more flexible battery expansion. It’s great for off-grid cabins, solar users, and scalable home backup systems.
Both are premium choices with similar price points but serve different user types.
FAQs
Does the Bluetti AC300 work without a B300 battery?
No. The AC300 is just a power module and requires at least one B300 battery to function.
Can the EcoFlow Delta Pro power a house?
Yes, especially when paired with the Smart Home Panel. It can run essential circuits during an outage.
Which unit charges faster with solar?
The Bluetti AC300 supports up to 2,400W of solar input vs 1,600W on the Delta Pro, making it faster for solar recharging.
Can either unit be charged at EV stations?
Only the EcoFlow Delta Pro has built-in support for Level 2 EV charging via a special adapter.
Individual buyer’s guides:
- EcoFlow DELTA Pro Buyer’s Guide: Power, Specs & Use Cases
- BLUETTI AC300 + B300 Buyer’s Guide: Flexible Power for Home & Travel
Last update on 2025-05-12 / Affiliate links / Images from Amazon Product Advertising API