BLUETTI Apex 300
#15 in LargeFull review
For homeowners who want a 240V-capable backup battery that grows with expansion packs, not a grab-and-go unit.
Amazon $1,498.98 BLUETTI $1,499$1,498.98
The BLUETTI Apex 300 rates 4.0 among large portable power stations; the EcoFlow DELTA Pro 3 rates 3.8 among home backup ones. The BLUETTI Apex 300 costs $1,300.02 less ($1,498.98 vs $2,799).
EcoFlow DELTA Pro 3
#15 in Home backupFull review
For households that want a single wheeled unit able to back up 240V circuits and expand toward whole-home capacity.
Amazon $2,799 EcoFlow $2,799$2,799
Prices were last checked October 20, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Scores side by side
These two sit in different size classes (large and home backup), and each is scored against the reference points for its own class, so a rating says how well each does among its own size peers. How we rank explains each factor.
| Factor weight | BLUETTI Apex 300 | EcoFlow DELTA Pro 3 |
|---|---|---|
| Overall rating | 4.0/5 | 3.8/5 |
| Value 25% | 63 $0.54 per rated Wh | 41 $0.68 per rated Wh |
| Tested capacity 15% | 50 not yet independently tested (neutral score used) | 100 93% of rated capacity delivered (1 test) |
| Battery life 15% | 100 LiFePO4, 6,000 cycles, 5-year warranty | 100 LiFePO4, 4,000 cycles, 5-year warranty |
| AC output 15% | 100 3,840 W continuous AC | 46 4,000 W continuous AC |
| Charging speed 10% | 50 full AC charge time not published (neutral score used) | 50 full AC charge time not published (neutral score used) |
| Portability 10% | 50 73 Wh per kg (83.8 lb (38 kg)) | 63 80 Wh per kg (113.5 lb (51.5 kg)) |
| Solar input 5% | 84 2,400 W max solar input | 57 2,600 W max solar input |
| Features 5% | 80 UPS (0 ms), expandable, app | 100 UPS (10 ms), expandable, 100 W USB-C, app |
Independent capacity tests
BLUETTI Apex 300
No independent test published yet.
EcoFlow DELTA Pro 3
| Tested by | Usable AC energy | Of rated | Conditions |
|---|---|---|---|
| OutdoorGearLab | 3,790 Wh | 92.5% | Full-discharge AC test; OutdoorGearLab states over 93%, 3790/4096 works out to 92.5%. Recharged from empty in about 3.2 h at about 1600W peak. |
Specifications
| BLUETTI Apex 300 | EcoFlow DELTA Pro 3 | |
|---|---|---|
| Battery | ||
| Rated capacity | 2,764.8 Wh | 4,096 Wh |
| Tested usable capacity | - | 3,790 Wh (93%) |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 6,000 to 80% | 4,000 to 80% |
| Expandable | Yes, up to 19,353.6 Wh | Yes, up to 12,000 Wh |
| Output | ||
| AC output | 3,840 W (7,680 W surge) | 4,000 W (8,000 W surge) |
| Boost mode (resistive loads) | - | 6,000 W |
| AC outlets | 6 total | 7 total |
| 120V 20A outlets (NEMA 5-20R) | 4 | 4 |
| RV 30A outlet (TT-30R) | 1 | 1 |
| 120/240V 30A twist-lock (NEMA L14-30R) | - | 1 |
| 120/240V 50A outlet (NEMA 14-50R) | 1 | - |
| 240V 20A outlet (NEMA 6-20R) | - | 1 |
| USB-C ports | 0 | 2 (up to 100 W each) |
| USB-A ports | 0 | 2 |
| 12 V car outlet | No | - |
| DC5521 ports | 0 | 1 |
| UPS / pass-through | Yes (0 ms switchover) | Yes (10 ms switchover) |
| Charging | ||
| AC charging | 1,800 W | 1,800 W |
| Max solar input | 2,400 W | 2,600 W |
| Solar input voltage | 2 inputs, 12-60V, 20A each | HV 30-150V (1600W) + LV 11-60V (1000W) |
| Build | ||
| Weight | 83.8 lb (38 kg) | 113.5 lb (51.5 kg) |
| Dimensions | 20.67 x 12.87 x 12.6 in | 27.28 x 16.16 x 13.43 in |
| App | Wi-Fi + Bluetooth | Wi-Fi + Bluetooth |
| Warranty | 5 years | 5 years |