ALLPOWERS R1500
#18 in Mid-sizeFull review
A low-cost expandable LiFePO4 station for home backup at moderate loads. Testing suggests it struggles near its rated 1,800W, so keep heavy loads well below that.
ALLPOWERS $539$539
The ALLPOWERS R1500 is the better portable power station overall, rated 4.1 to 3.1. The ALLPOWERS R1500 leads on value, battery life and features. The Generac GB1000 wins on portability. The ALLPOWERS R1500 costs $360.99 less ($539 vs $899.99).
Generac GB1000
#38 in Mid-sizeFull review
For buyers who want a Generac-backed 1 kWh station that can run 1,600W appliances and parallel with a second unit; LiFePO4 rivals offer more cycles and faster charging for the money.
ecobee (Generac) $899.99$899.99
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 ALLPOWERS R1500 for value ($0.47 per rated Wh vs $0.83 per rated Wh), battery life (LiFePO4, 3,500 cycles, 5-year warranty vs Li-ion NMC, 800 cycles, 3-year warranty) and features (UPS (15 ms), expandable, 100 W USB-C, app vs no UPS, expansion or app).
- Choose the Generac GB1000 for portability (83 Wh per kg (29 lb (13.2 kg)) vs 69 Wh per kg (36.8 lb (16.7 kg))).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every mid-size portable power station; a clear win is highlighted. How we rank explains each one.
| Factor weight | ALLPOWERS R1500 | Generac GB1000 |
|---|---|---|
| Overall rating | 4.1/5 | 3.1/5 |
| Value 25% | 84 $0.47 per rated Wh | 36 $0.83 per rated Wh |
| Tested capacity 15% | 59 83% of rated capacity delivered (1 test) | 50 not yet independently tested (neutral score used) |
| Battery life 15% | 96 LiFePO4, 3,500 cycles, 5-year warranty | 23 Li-ion NMC, 800 cycles, 3-year warranty |
| AC output 15% | 82 1,800 W continuous AC | 74 1,600 W continuous AC |
| Charging speed 10% | 50 full AC charge time not published (neutral score used) | 50 full AC charge time not published (neutral score used) |
| Portability 10% | 44 69 Wh per kg (36.8 lb (16.7 kg)) | 68 83 Wh per kg (29 lb (13.2 kg)) |
| Solar input 5% | 49 650 W max solar input | 33 468 W max solar input |
| Features 5% | 100 UPS (15 ms), expandable, 100 W USB-C, app | 0 no UPS, expansion or app |
Independent capacity tests
ALLPOWERS R1500
| Tested by | Usable AC energy | Of rated | Conditions |
|---|---|---|---|
| The Solar Lab | - | 83% | Re-test at a 1,326W AC load ran 43.5 minutes, about 83% of rated capacity. A first run at 1,560W overheated and shut down after 25 minutes. |
Generac GB1000
No independent test published yet.
Specifications
| ALLPOWERS R1500 | Generac GB1000 | |
|---|---|---|
| Battery | ||
| Rated capacity | 1,152 Wh | 1,086 Wh |
| Tested usable capacity | 956 Wh (83%) | - |
| Chemistry | LiFePO4 | Li-ion NMC |
| Cycle life | 3,500 3,500+ cycles (manufacturer; end-of-life capacity not stated) | 800 to 80% (0.5C charge, 1C discharge at 25 C) |
| Expandable | Yes, up to 4,608 Wh | No |
| Output | ||
| AC output | 1,800 W (3,000 W surge) | 1,600 W (3,200 W surge) |
| AC outlets | 4 total | 3 total |
| 120V 20A outlets (NEMA 5-20R) | 4 | - |
| 120V 2-prong outlets (NEMA 1-15R) | - | 3 |
| AC waveform | Pure sine wave | - |
| USB-C ports | 2 (up to 100 W each) | 2 (up to 65 W each) |
| USB-A ports | 2 | 2 |
| 12 V car outlet | Yes | Yes |
| UPS / pass-through | Yes (15 ms switchover) | No |
| Charging | ||
| AC charging | 1,500 W | 450 W |
| Max solar input | 650 W | 468 W |
| Solar input voltage | 12-60V, 13A | 10-28V, 30A max (shared DC/solar input) |
| Build | ||
| Weight | 36.8 lb (16.7 kg) | 29 lb (13.2 kg) |
| Dimensions | 16.25 x 12.28 x 10.43 in | 14.1 x 10.2 x 12.0 in |
| App | ALLPOWERS app (Wi-Fi/Bluetooth) | - |
| Warranty | 5 years | 3 years |