Apex 300 vs EcoFlow DELTA Pro 3 (UL9540 Certificated)
- Price today: BLUETTI is $1,300 cheaper ($1,499 vs $2,799).
- Cost per Wh: $0.54 vs $0.68 — Apex 300 gives you more battery per dollar today.
- Rated cycle-cost estimate: 9.0¢ vs 17.1¢ per lifetime kWh (manufacturer cycle ratings).
| Apex 300 | EcoFlow DELTA Pro 3 (UL9540 Certificated) | |
|---|---|---|
| Price today | $1,499 | $2,799 |
| Deal status | Unusually low | Normal price |
| Capacity | 2765Wh | 4096Wh |
| $/Wh | $0.54 | $0.68 |
| Chemistry | LFP | LFP |
| Rated cycles | 6,000 cycles to 80% | 4,000 cycles to 80% |
| Output | 3840W | 4000W |
| Solar input | 1200W | — |
| Weight | 83.78 lbs | 113.54 lbs |
| Expandable | Yes | Yes |
| Recorded low | $1,499 (2026-08-18) | $2,399 (2026-07-16) |
| View at BLUETTI — $1,499 | View at EcoFlow — $2,799 |
Full tech-spec comparison all specs
| Apex 300 | EcoFlow DELTA Pro 3 (UL9540... | |
|---|---|---|
| Battery | ||
| Chemistry | LFP | LFP |
| Capacity | 2,765Wh | 4,096Wh |
| Rated cycles | 6,000+ | 4,000 |
| Cycle retention | 80% | 80% |
| Expandable | Yes | Yes |
| Output | ||
| AC output (continuous) | 3,840W | 4,000W |
| Input & charging | ||
| UPS / EPS | Yes | Yes |
| General & physical | ||
| Weight | 83.78 lbs | 113.54 lbs |
| Warranty | 5 years | 5 years |
Also published by Apex 300
| Inverter type | Pure sine wave |
|---|---|
| USB-C ports | 2× 100W |
| USB-C max | 700W |
| USB-A ports | 2× 15W |
| AC input | 1,800W |
| Solar (PV) input | 1,200W |
| Car input | 12V or 24V via cigarette lighter port |
| Max combined input | 3,840W |
| Dimensions | 20.67 × 12.87 × 12.6 in |
| Operating temperature | -4°F to 104°F |
| Connectivity | Wi-Fi · Bluetooth |
| Certifications | FCC, UL, TELEC, CE, NTC, RCM, LOA, ICASA |
Also published by EcoFlow DELTA Pro 3 (UL9540...
| UPS switchover | 10 ms |
|---|
Like-for-like specs both brands publish are shown first (✓ = better value); each brand's remaining published specs follow. Core figures are editorially verified; the rest come from each manufacturer's tech specs.
Price history — Apex 300
Price history — EcoFlow DELTA Pro 3 (UL9540 Certificated)
Prices recorded daily from the official BLUETTI and EcoFlow stores. Deal statuses compare each product to its own 90-day history — methodology.