The Growatt INFINITY 2000 PRO is the better portable power station overall, rated 4.2 to 4.1. The Growatt INFINITY 2000 PRO leads on AC output, solar input and features. The Anker SOLIX S2000 wins on portability. The Growatt INFINITY 2000 PRO costs $51.99 less ($648 vs $699.99).
A low-cost 2 kWh LiFePO4 station for RV owners and home backup buyers who want a TT-30 outlet and room to expand. Buy it for the price per watt-hour rather than portability.
Amazon $648 Growatt $799For 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 $699.99Prices 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.
Each factor is scored 0-100 against the same fixed reference points for every large portable power station; a clear win is highlighted. How we rank explains each one.
| Factor weight | Growatt INFINITY 2000 PRO | Anker SOLIX S2000 |
|---|---|---|
| Overall rating | 4.2/5 | 4.1/5 |
| Value 25% | 97 $0.32 per rated Wh | 93 $0.35 per rated Wh |
| Tested capacity 15% | 50 not yet independently tested (neutral score used) | 95 91% of rated capacity delivered (1 test) |
| Battery life 15% | 100 LiFePO4, 4,000 cycles, 5-year warranty | 100 LiFePO4, 6,000 cycles, 5-year warranty |
| AC output 15% | 54 2,400 W continuous AC | 0 1,500 W continuous AC |
| Charging speed 10% | 76 0-100% on AC in 1 h 36 min | 70 0-100% on AC in 1 h 47 min |
| Portability 10% | 80 89 Wh per kg (51 lb (23 kg)) | 100 124 Wh per kg (35.7 lb (16.2 kg)) |
| Solar input 5% | 51 1,200 W max solar input | 6 400 W max solar input |
| Features 5% | 100 UPS (20 ms), expandable, 100 W USB-C, app | 75 UPS (10 ms), 100 W USB-C, app |
No independent test published yet.
| 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. |
| Growatt INFINITY 2000 PRO | Anker SOLIX S2000 | |
|---|---|---|
| Battery | ||
| Rated capacity | 2,048 Wh | 2,010 Wh |
| Tested usable capacity | - | 1,829 Wh (91%) |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 4,000 to 80% | 6,000 to 80% (10,000 to 60%) |
| Expandable | Yes, up to 6,144 Wh | No |
| Output | ||
| AC output | 2,400 W (4,800 W surge) | 1,500 W (3,000 W surge) |
| Boost mode (resistive loads) | 3,400 W | - |
| AC outlets | 5 total | 5 total |
| 120V 15A outlets (NEMA 5-15R) | - | 5 |
| 120V 20A outlets (NEMA 5-20R) | 4 | - |
| RV 30A outlet (TT-30R) | 1 | - |
| USB-C ports | 2 (up to 100 W each) | 2 (up to 100 W each) |
| USB-A ports | 4 | 1 |
| 12 V car outlet | Yes | No |
| DC5521 ports | 2 | - |
| UPS / pass-through | Yes (20 ms switchover) | Yes (10 ms switchover) |
| Charging | ||
| AC charging | 1,800 W | 1,600 W |
| Full AC charge time | 1 h 36 min (Spec table: 1.6 h to 100%; the feature list says 2 h (manufacturer)) | 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 | 1,200 W | 400 W |
| Solar input voltage | 12-60V | 11-60V |
| Build | ||
| Weight | 51 lb (23 kg) | 35.7 lb (16.2 kg) |
| Dimensions | 17.99 x 9.72 x 12.20 in | 8.2 x 11.1 x 12.7 in |
| App | MyGro app (Wi-Fi and Bluetooth) | Anker app |
| Warranty | 5 years | 5 years |
| Released | - | 2026-05 |
