Bluetti Apex 300 vs EcoFlow DELTA 3 Ultra
What is the difference?
The Bluetti Apex 300 has 3.84 kW of power, 7.68 kW peak, a 2.76 kWh battery. The EcoFlow DELTA 3 Ultra has 3.6 kW of power, 7.2 kW peak, a 3.07 kWh battery.
Both use LiFePO4 batteries.
The Bluetti Apex 300 takes up to 4000 W from solar, the EcoFlow DELTA 3 Ultra takes up to 800 W from solar. The Bluetti Apex 300 charges faster from panels.
The Bluetti Apex 300 has 120/240 V AC output, the EcoFlow DELTA 3 Ultra 120 V. Only 240 V output can run 240 V loads such as many well pumps, dryers and central AC.
The Bluetti Apex 300 can add extra batteries.
Specs side by side
| Bluetti Apex 300 | EcoFlow DELTA 3 Ultra | |
|---|---|---|
| Capacity (Wh) | 2764.8 | 3072 |
| Continuous (W) | 3840 | 3600 |
| Peak (W) | 7680 | 7200 |
| Solar input (W) | 4000 | 800 |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycles | 6000 | — |
| Expandable | yes | — |
| Weight (lb) | — | 72 |
| Warranty (yr) | — | 5 |
| Fridge run time | 52.1 h | 57.9 h |
| CPAP run time | 62.6 h | 69.5 h |
| Wi-Fi router run time | 182.5 h | 202.8 h |
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Specs as read from manufacturer pages on 2026-10-25 / 2026-10-26. Specs one maker does not list are left out of the comparison. Run times are for that appliance alone with a typical duty cycle, after inverter and depth-of-discharge losses. Sponsored links; we may earn a commission.
Common questions
Which has more capacity, Bluetti Apex 300 or EcoFlow DELTA 3 Ultra?
The EcoFlow DELTA 3 Ultra. More capacity: 3072 Wh vs 2764.8 Wh.
Which charges faster from solar, Bluetti Apex 300 or EcoFlow DELTA 3 Ultra?
The Bluetti Apex 300. Faster solar charging: 4000 W input vs 800 W input.
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Compare other models → · All Bluetti models · All EcoFlow models