Growatt INFINITY 1500 vs DJI Power 500
Side-by-side on the specs that decide it — surge, capacity, runtime and price.
Both models' specs verified against manufacturer listings · Last updated
The short answer
DJI Power 500 costs $740 less. Whether that gap is worth closing depends on what you need to run.
- Growatt INFINITY 1500 holds 195% more energy (1512Wh vs 512Wh), so it runs the same load proportionally longer.
- Growatt INFINITY 1500 has 1000W more surge headroom (3000W vs 2000W) — that decides whether a fridge, pump or AC compressor will actually start.
- DJI Power 500 is 21.2 lb lighter (16.3 lb vs 37.5 lb).
- DJI Power 500 is rated for 4,000 cycles vs 3,000 — meaningful if you cycle it daily.
Neither of these will start a sump pump or well pump — both surge below the ~3,400W those motors need. If home backup with pumps is your use case, look at higher-surge models instead of either of these.
A capable mid-size that flies under the radar. Solid 2,000W output and fast charging, let down mainly by a shorter warranty than the big brands.
Best for: Value hunters who want 1.5kWh and don't need the longest warranty.
Where it falls short:
- 3,000W surge is modest for the output
- 3-year warranty vs 5 from the majors
The smaller DJI unit: 512Wh and 1,000W make it a capable weekend companion, with fast charging and low noise as the standouts.
Best for: Weekend campers and creators who want a light, fast-charging half-kWh unit.
Where it falls short:
- 512Wh is a single-day capacity
- No expansion
| Spec | Growatt INFINITY 1500 | DJI Power 500 |
|---|---|---|
| Price | $1099 | $359 |
| Capacity | 1512 Wh | 512 Wh |
| Continuous output | 2000 W | 1000 W |
| Surge output | 3000 W | 2000 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,000 | 4,000 |
| Weight (lighter wins) | 37.5 lb | 16.3 lb |
| Max solar | 800 W | 200 W |
| Recharge time (faster wins) | 1h 50m | 1h 10m |
Runtime head-to-head
| Appliance | Growatt INFINITY 1500 | DJI Power 500 |
|---|---|---|
| Refrigerator | 21.4 hrs | 7.3 hrs |
| Mini fridge | 40.8 hrs | 13.8 hrs |
| Chest freezer | 16.1 hrs | 5.4 hrs |
| CPAP machine | 32.1 hrs | 10.9 hrs |
| Sump pump | ❌ | ❌ |