For buyers who want a light, fast-charging 2 kWh unit with strong USB-C and an RV outlet.
Amazon $899.98 Anker $999.99The Anker SOLIX C2000 Gen 2 rates 4.2 among large portable power stations; the Anker SOLIX F3800 Plus rates 3.6 among home backup ones. The Anker SOLIX C2000 Gen 2 costs $1,700.01 less ($899.98 vs $2,599.99).

For homeowners planning a solar-backed, expandable 240V backup system rather than a portable unit.
Anker $2,599.99Prices 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 C2000 Gen 2 | Anker SOLIX F3800 Plus |
|---|---|---|
| Overall rating | 4.2/5 | 3.6/5 |
| Value 25% | 79 $0.44 per rated Wh | 42 $0.68 per rated Wh |
| Tested capacity 15% | 84 88% of rated capacity delivered (1 test) | 50 not yet independently tested (neutral score used) |
| Battery life 15% | 85 LiFePO4, 4,000 cycles | 91 LiFePO4, 3,000 cycles, 5-year warranty |
| AC output 15% | 54 2,400 W continuous AC | 83 6,000 W continuous AC |
| Charging speed 10% | 80 0-100% on AC in 1 h 28 min | 50 full AC charge time not published (neutral score used) |
| Portability 10% | 100 108 Wh per kg (41.7 lb (18.9 kg)) | 31 62 Wh per kg (136.7 lb (62 kg)) |
| Solar input 5% | 28 800 W max solar input | 80 3,200 W max solar input |
| Features 5% | 80 UPS (10 ms), expandable, 140 W USB-C | 80 UPS (20 ms), expandable, 100 W USB-C |
Independent capacity tests
Anker SOLIX C2000 Gen 2
| Tested by | Usable AC energy | Of rated | Conditions |
|---|---|---|---|
| CNET | 1,812 Wh | 88.5% | 480W load logged with HOBOware; round-trip efficiency 74.02%; recharge 1 h 28 min; ran a test fridge about 27.4 h |
Anker SOLIX F3800 Plus
No independent test published yet.
Specifications
| Anker SOLIX C2000 Gen 2 | Anker SOLIX F3800 Plus | |
|---|---|---|
| Battery | ||
| Rated capacity | 2,048 Wh | 3,840 Wh |
| Tested usable capacity | 1,812 Wh (88%) | - |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 4,000 to 80% | 3,000 |
| Expandable | Yes, up to 4,000 Wh | Yes, up to 53,800 Wh |
| Output | ||
| AC output | 2,400 W (4,000 W surge) | 6,000 W |
| AC outlets | 6 total | 8 total |
| 120V 20A outlets (NEMA 5-20R) | 5 | 6 |
| RV 30A outlet (TT-30R) | 1 | 1 |
| 120/240V 30A twist-lock (NEMA L14-30R) | - | 1 |
| USB-C ports | 3 (up to 140 W each) | 3 (up to 100 W each) |
| USB-A ports | 1 | 2 |
| 12 V car outlet | Yes | Yes |
| DC5521 ports | 0 | - |
| UPS / pass-through | Yes (10 ms switchover) | Yes (20 ms switchover) |
| Charging | ||
| AC charging | 1,800 W | 1,800 W |
| Full AC charge time | 1 h 28 min (100% in 88 min on AC; 58 min with AC + solar at 2600W (manufacturer)) | - |
| Max solar input | 800 W | 3,200 W |
| Solar input voltage | 11-60V | 11-165V, 2 inputs at 1600W each |
| Car charging | 800 W | - |
| Build | ||
| Weight | 41.7 lb (18.9 kg) | 136.7 lb (62 kg) |
| Dimensions | 18.1 x 9.8 x 10.1 in | 27.6 x 15.3 x 15.6 in |
| Warranty | - | 5 years |
| Released | 2025-10 | 2025-03 |