Two high-capacity home-backup references. One bets on raw power, the other on modularity. Comparison and recommendation for your needs.
Specs comparison
| EcoFlow Delta Pro 3 | Bluetti AC300 + B300 | |
|---|---|---|
| Capacity | 4096 Wh | 3072 Wh |
| Output power | 4000 W | 3000 W |
| Peak power | 7200 W | 6000 W |
| Solar input | 1600 W | 2400 W |
| Indicative price | 3199 € | 2999 € |
Our verdict
The Delta Pro 3 offers more base capacity (4,096 Wh) and power (4,000 W) in one block, perfect to power many appliances right away. The AC300 + B300 (3,072 Wh) is expandable to 12,288 Wh: ideal to start small then grow. Immediate power: Delta Pro 3; scalability: AC300 + B300.
View EcoFlow Delta Pro 3 → · View Bluetti AC300 + B300 →
FAQ
Which one to last several days?
The AC300 + B300, thanks to expandability up to 12,288 Wh with extra batteries.
Can it power the whole house?
Both accept a transfer panel to power entire circuits; otherwise plug priority appliances directly.