Anker SOLIX S2000
#10 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 and the ALLPOWERS R2500 V2 are evenly matched, rated 4.1 and 4.0. The Anker SOLIX S2000 leads on portability. The ALLPOWERS R2500 V2 wins on AC output, solar input and charging speed. The ALLPOWERS R2500 V2 costs $59.99 less ($640 vs $699.99).
ALLPOWERS R2500 V2
#13 in LargeFull review
A budget 2 kWh LiFePO4 station for home backup and RV use, for buyers who put price first and can lift a 64 lb box.
Amazon $640$640
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 S2000 for portability (124 Wh per kg (35.7 lb (16.2 kg)) vs 66 Wh per kg (63.9 lb (29 kg))).
- Choose the ALLPOWERS R2500 V2 for AC output (2,500 W continuous AC vs 1,500 W continuous AC), solar input (1,000 W max solar input vs 400 W max solar input) and charging speed (0-100% on AC in 1 h 30 min vs 0-100% on AC in 1 h 47 min).
Scores side by side
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 | Anker SOLIX S2000 | ALLPOWERS R2500 V2 |
|---|---|---|
| Overall rating | 4.1/5 | 4.0/5 |
| Value 25% | 93 $0.35 per rated Wh | 95 $0.33 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 | 96 LiFePO4, 3,500 cycles, 5-year warranty |
| AC output 15% | 0 1,500 W continuous AC | 58 2,500 W continuous AC |
| Charging speed 10% | 70 0-100% on AC in 1 h 47 min | 79 0-100% on AC in 1 h 30 min |
| Portability 10% | 100 124 Wh per kg (35.7 lb (16.2 kg)) | 39 66 Wh per kg (63.9 lb (29 kg)) |
| Solar input 5% | 6 400 W max solar input | 44 1,000 W max solar input |
| Features 5% | 75 UPS (10 ms), 100 W USB-C, app | 75 UPS (15 ms), 100 W USB-C, app |
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. |
ALLPOWERS R2500 V2
No independent test published yet.
Specifications
| Anker SOLIX S2000 | ALLPOWERS R2500 V2 | |
|---|---|---|
| Battery | ||
| Rated capacity | 2,010 Wh | 1,920 Wh |
| Tested usable capacity | 1,829 Wh (91%) | - |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 6,000 to 80% (10,000 to 60%) | 3,500 to 80% (Amazon listing) |
| Expandable | No | No |
| Output | ||
| AC output | 1,500 W (3,000 W surge) | 2,500 W (4,000 W surge) |
| 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 |
| AC waveform | - | Pure sine wave |
| USB-C ports | 2 (up to 100 W each) | 2 (up to 100 W each) |
| USB-A ports | 1 | 4 |
| 12 V car outlet | No | Yes |
| DC5521 ports | - | 2 |
| UPS / pass-through | Yes (10 ms switchover) | Yes (15 ms switchover) |
| Charging | ||
| AC charging | 1,600 W | 1,500 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) | 1 h 30 min (about 1.5 h; manufacturer says about 97 minutes in its own test) |
| Max solar input | 400 W | 1,000 W |
| Solar input voltage | 11-60V | 12-150V, 20A |
| Build | ||
| Weight | 35.7 lb (16.2 kg) | 63.9 lb (29 kg) |
| Dimensions | 8.2 x 11.1 x 12.7 in | 17.95 x 14.17 x 13.62 in |
| App | Anker app | ALLPOWERS app (Wi-Fi/Bluetooth) |
| Warranty | 5 years | 5 years |
| Released | 2026-05 | - |