Anker SOLIX F3800
#22 in Home backupFull review
For homeowners who want 240V backup that can grow into a whole-home battery, and who do not need the extra solar input of the F3800 Plus.
Amazon Anker $2,199.99$2,199.99
The Anker SOLIX F3800 and the BLUETTI Elite 400 are evenly matched, rated 3.7 and 3.6. The Anker SOLIX F3800 leads on AC output, battery life and solar input. The BLUETTI Elite 400 wins on value and portability. The BLUETTI Elite 400 costs $800.99 less ($1,399 vs $2,199.99).
BLUETTI Elite 400
#25 in Home backupFull review
For home-backup buyers who want nearly 4 kWh in one rolling unit without adding expansion batteries.
Amazon $1,449 BLUETTI $1,399$1,399
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.
Which should you buy?
- Choose the Anker SOLIX F3800 for AC output (6,000 W continuous AC vs 2,600 W continuous AC), battery life (LiFePO4, 3,000 cycles, 5-year warranty vs LiFePO4, 5-year warranty) and solar input (2,400 W max solar input vs 1,000 W max solar input).
- Choose the BLUETTI Elite 400 for value ($0.36 per rated Wh vs $0.57 per rated Wh) and portability (98 Wh per kg (86 lb (39 kg)) vs 64 Wh per kg (132.3 lb (60 kg))).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every home backup portable power station; a clear win is highlighted. How we rank explains each one.
| Factor weight | Anker SOLIX F3800 | BLUETTI Elite 400 |
|---|---|---|
| Overall rating | 3.7/5 | 3.6/5 |
| Value 25% | 58 $0.57 per rated Wh | 90 $0.36 per rated Wh |
| Tested capacity 15% | 35 78% of rated capacity delivered (1 test) | 50 not yet independently tested (neutral score used) |
| Battery life 15% | 91 LiFePO4, 3,000 cycles, 5-year warranty | 70 LiFePO4, 5-year warranty |
| AC output 15% | 83 6,000 W continuous AC | 7 2,600 W continuous AC |
| Charging speed 10% | 50 full AC charge time not published (neutral score used) | 47 0-100% on AC in 2 h 30 min |
| Portability 10% | 35 64 Wh per kg (132.3 lb (60 kg)) | 97 98 Wh per kg (86 lb (39 kg)) |
| Solar input 5% | 56 2,400 W max solar input | 13 1,000 W max solar input |
| Features 5% | 100 UPS (20 ms), expandable, 100 W USB-C, app | 75 UPS (15 ms), 100 W USB-C, app |
Independent capacity tests
Anker SOLIX F3800
| Tested by | Usable AC energy | Of rated | Conditions |
|---|---|---|---|
| StorageReview | 2,980 Wh | 78% | Full discharge until the inverter cut off; load not stated. Recharge from 0 to 100% took 4,930 Wh from the wall. |
BLUETTI Elite 400
No independent test published yet.
Specifications
| Anker SOLIX F3800 | BLUETTI Elite 400 | |
|---|---|---|
| Battery | ||
| Rated capacity | 3,840 Wh | 3,840 Wh |
| Tested usable capacity | 2,980 Wh (78%) | - |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 3,000 to 80% | - |
| Expandable | Yes, up to 26,880 Wh | No |
| Output | ||
| AC output | 6,000 W (9,000 W surge) | 2,600 W (5,200 W surge) |
| Boost mode (resistive loads) | - | 3,900 W |
| AC outlets | 8 total | 4 total |
| 120V 20A outlets (NEMA 5-20R) | 6 | 4 |
| 120/240V 30A twist-lock (NEMA L14-30R) | 1 | - |
| 120/240V 50A outlet (NEMA 14-50R) | 1 | - |
| USB-C ports | 3 (up to 100 W each) | 2 (up to 100 W each) |
| USB-A ports | 2 | 2 |
| 12 V car outlet | Yes | Yes |
| UPS / pass-through | Yes (20 ms switchover) | Yes (15 ms switchover) |
| Charging | ||
| AC charging | 1,800 W | 1,800 W |
| Full AC charge time | - | 2 h 30 min (0-80% in about 1 h 55 min in Turbo mode; AC + solar up to 2800W) |
| Max solar input | 2,400 W | 1,000 W |
| Solar input voltage | 11-60V, 2 inputs at 1200W each | 12-60V, 20A |
| Build | ||
| Weight | 132.3 lb (60 kg) | 86 lb (39 kg) |
| Dimensions | 27.6 x 15.3 x 15.6 in | 16.8 x 11.3 x 19.3 in |
| App | Anker app | Wi-Fi + Bluetooth |
| Warranty | 5 years | 5 years |