Growatt INFINITY 1500 vs Pecron E3600LFP
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
Growatt INFINITY 1500 costs $600 less. Whether that gap is worth closing depends on what you need to run.
- Pecron E3600LFP holds 98% more energy (3000Wh vs 1512Wh), so it runs the same load proportionally longer.
- Pecron E3600LFP has 4000W more surge headroom (7000W vs 3000W) — that decides whether a fridge, pump or AC compressor will actually start.
- Growatt INFINITY 1500 is 39.5 lb lighter (37.5 lb vs 77 lb).
- Pecron E3600LFP is rated for 3,500 cycles vs 3,000 — meaningful if you cycle it daily.
Growatt INFINITY 1500
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
Pecron E3600LFP
A 3kWh unit with 3,600W output and 2,500W solar input at a price well below the flagship majors — strong specs, smaller brand.
Best for: Whole-home backup buyers chasing capacity and solar input per dollar.
Where it falls short:
- 77 lb
- Brand support and resale trail the majors
| Spec | Growatt INFINITY 1500 | Pecron E3600LFP |
|---|---|---|
| Price | $1099 | $1699 |
| Capacity | 1512 Wh | 3000 Wh |
| Continuous output | 2000 W | 3600 W |
| Surge output | 3000 W | 7000 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,000 | 3,500 |
| Weight (lighter wins) | 37.5 lb | 77 lb |
| Max solar | 800 W | 2500 W |
| Recharge time (faster wins) | 1h 50m | 2h |
Runtime head-to-head
| Appliance | Growatt INFINITY 1500 | Pecron E3600LFP |
|---|---|---|
| Refrigerator | 21.4 hrs | 42.5 hrs |
| Mini fridge | 40.8 hrs | 81.0 hrs |
| Chest freezer | 16.1 hrs | 31.9 hrs |
| CPAP machine | 32.1 hrs | 63.8 hrs |
| Sump pump | ❌ | 3.2 hrs |