Growatt INFINITY 1500
1512 Wh · 2000 W output · LiFePO4 · $1099
✅ Specs verified against the manufacturer's official listing — source · Last checked
Our verdict
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.
What we like
- 2,000W output at a competitive price
- 1.8-hour recharge
- 800W solar input
Where it falls short
- 3,000W surge is modest for the output
- 3-year warranty vs 5 from the majors
Full specifications
| Capacity | 1512 Wh |
|---|---|
| Continuous output | 2000 W |
| Surge output | 3000 W |
| Battery chemistry | LiFePO4 |
| Rated cycles | 3,000 |
| Weight | 37.5 lb |
| Max solar input | 800 W |
| Recharge (AC) | 1h 50m |
| Expandable | No |
| Warranty | 3 years |
What can the Growatt INFINITY 1500 run?
| Appliance | Can start it? | Est. runtime |
|---|---|---|
| Refrigerator | ✅ Yes | 21.4 hrs |
| Mini fridge | ✅ Yes | 40.8 hrs |
| Chest freezer | ✅ Yes | 16.1 hrs |
| CPAP machine | ✅ Yes | 32.1 hrs |
| Sump pump | ❌ Surge too high | — |
| Well pump (1/2 HP) | ❌ Surge too high | — |
| Space heater | ✅ Yes | 51 min |
| Window AC (8k BTU) | ✅ Yes | 2.6 hrs |
| Microwave | ✅ Yes | 1.3 hrs |
| Coffee maker | ✅ Yes | 1.4 hrs |
| TV (55" LED) | ✅ Yes | 12.9 hrs |
| Laptop | ✅ Yes | 19.8 hrs |
| Phone charger | ✅ Yes | 64.3 hrs |
| CPAP + humidifier | ✅ Yes | 14.3 hrs |
| Fridge plus essentials | ✅ Yes | 12.9 hrs |
| 12V RV fridge | ✅ Yes | 71.4 hrs |
| Starlink | ✅ Yes | 21.4 hrs |
| Electric blanket | ✅ Yes | 42.8 hrs |
Runtime = (capacity × 0.85 inverter efficiency) ÷ appliance watts. Refrigerator assumes a 40% compressor duty cycle. Real-world results vary.