Anker SOLIX S2000
#12 in LargeFull review
For home backup of a fridge, router and small appliances where a compact, long-lived battery matters more than high output or solar charging speed.
Amazon $699.99 Anker SOLIX $699.99$699.99
The Anker SOLIX S2000 rates 4.1 among large portable power stations; the Anker SOLIX F3800 Plus rates 3.6 among home backup ones. The Anker SOLIX S2000 costs $1,900 less ($699.99 vs $2,599.99).
Anker SOLIX F3800 Plus
#24 in Home backupFull review
For homeowners planning a solar-backed, expandable 240V backup system rather than a portable unit.
Anker $2,599.99$2,599.99
Prices were last checked October 24, 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 | Anker SOLIX S2000 | Anker SOLIX F3800 Plus |
|---|---|---|
| Overall rating | 4.1/5 | 3.6/5 |
| Value 25% | 93 $0.35 per rated Wh | 42 $0.68 per rated Wh |
| Tested capacity 15% | 95 91% of rated capacity delivered (1 test) | 50 not yet independently tested (neutral score used) |
| Battery life 15% | 100 LiFePO4, 6,000 cycles, 5-year warranty | 91 LiFePO4, 3,000 cycles, 5-year warranty |
| AC output 15% | 0 1,500 W continuous AC | 83 6,000 W continuous AC |
| Charging speed 10% | 70 0-100% on AC in 1 h 47 min | 50 full AC charge time not published (neutral score used) |
| Portability 10% | 100 124 Wh per kg (35.7 lb (16.2 kg)) | 31 62 Wh per kg (136.7 lb (62 kg)) |
| Solar input 5% | 6 400 W max solar input | 80 3,200 W max solar input |
| Features 5% | 75 UPS (10 ms), 100 W USB-C, app | 80 UPS (20 ms), expandable, 100 W USB-C |
Independent capacity tests
Anker SOLIX S2000
| Tested by | Usable AC energy | Of rated | Conditions |
|---|---|---|---|
| The Solar Lab | - | 91% | Efficiency test; load not specified in the review. Measured AC recharge 1 h 47 min. |
Anker SOLIX F3800 Plus
No independent test published yet.
Specifications
| Anker SOLIX S2000 | Anker SOLIX F3800 Plus | |
|---|---|---|
| Battery | ||
| Rated capacity | 2,010 Wh | 3,840 Wh |
| Tested usable capacity | 1,829 Wh (91%) | - |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 6,000 to 80% (10,000 to 60%) | 3,000 |
| Expandable | No | Yes, up to 53,800 Wh |
| Output | ||
| AC output | 1,500 W (3,000 W surge) | 6,000 W |
| AC outlets | 5 total | 8 total |
| 120V 15A outlets (NEMA 5-15R) | 5 | - |
| 120V 20A outlets (NEMA 5-20R) | - | 6 |
| RV 30A outlet (TT-30R) | - | 1 |
| 120/240V 30A twist-lock (NEMA L14-30R) | - | 1 |
| AC waveform | Pure sine wave | - |
| USB-C ports | 2 (up to 100 W each) | 3 (up to 100 W each) |
| USB-A ports | 1 | 2 |
| 12 V car outlet | No | Yes |
| DC5521 ports | 0 | - |
| UPS / pass-through | Yes (10 ms switchover) | Yes (20 ms switchover) |
| Charging | ||
| AC charging | 1,600 W | 1,800 W |
| Full AC charge time | 1 h 47 min (measured by The Solar Lab; Anker states 2.3 h at the default 1,150W, UltraFast (1,600W) is enabled in the app) | - |
| Max solar input | 400 W | 3,200 W |
| Solar input voltage | 11-60V | 11-165V, 2 inputs at 1600W each |
| Build | ||
| Weight | 35.7 lb (16.2 kg) | 136.7 lb (62 kg) |
| Dimensions | 8.2 x 11.1 x 12.7 in | 27.6 x 15.3 x 15.6 in |
| App | Anker app | - |
| Warranty | 5 years | 5 years |
| Released | 2026-05 | 2025-03 |