Bluetti AC300 + B300K vs EcoFlow DELTA Pro 3
A side-by-side look at the Bluetti AC300 + B300K and EcoFlow DELTA Pro 3. Winning figures are highlighted.
| Bluetti Bluetti AC300 + B300K | EcoFlow EcoFlow DELTA Pro 3 | |
|---|---|---|
| Price from | £1,799 | £2,499 |
| Capacity | 2764.8 Wh | 4096 Wh |
| AC output | 3000 W | 4000 W |
| Surge output | 6000 W | 8000 W |
| Battery | LiFePO4 | LiFePO4 |
| Max with expansion | 11059.2 Wh | 48000 Wh |
| Max solar input | 2400 W | 2600 W |
| Weight | 51.1 kg | 51.5 kg |
| Cycle life | 4000 | 4000 |
Bluetti AC300 + B300K
Splitting the inverter and battery into separate units is the point: the AC300 acts as a 24/7 UPS with 20ms switchover, and you scale storage independently by adding B300K modules. A flexible modular alternative to fixed-capacity flagships like the DELTA Pro 3.
Full Bluetti AC300 + B300K review →EcoFlow DELTA Pro 3
If you want true home-backup capacity without a fixed installation, the DELTA Pro 3 is the benchmark — huge output, massive expansion and strong solar input. Heavy and pricey, as expected.
Full EcoFlow DELTA Pro 3 review →