Growatt VITA 550 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 VITA 550 costs $1300 less. Whether that gap is worth closing depends on what you need to run.
- Pecron E3600LFP holds 458% more energy (3000Wh vs 538Wh), so it runs the same load proportionally longer.
- Pecron E3600LFP has 5800W more surge headroom (7000W vs 1200W) — that decides whether a fridge, pump or AC compressor will actually start.
- Growatt VITA 550 is 59.4 lb lighter (17.6 lb vs 77 lb).
- Pecron E3600LFP is rated for 3,500 cycles vs 3,000 — meaningful if you cycle it daily.
Growatt VITA 550
A tidy half-kWh unit with fast charging and a 1,200W surge that lets it start small appliances a 600W rating wouldn't suggest.
Best for: Campers who want fast charging and a bit of surge headroom at half a kWh.
Where it falls short:
- 538Wh is weekend-scale
- 3-year warranty
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 VITA 550 | Pecron E3600LFP |
|---|---|---|
| Price | $399 | $1699 |
| Capacity | 538 Wh | 3000 Wh |
| Continuous output | 600 W | 3600 W |
| Surge output | 1200 W | 7000 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 3,000 | 3,500 |
| Weight (lighter wins) | 17.6 lb | 77 lb |
| Max solar | 300 W | 2500 W |
| Recharge time (faster wins) | 1h | 2h |
Runtime head-to-head
| Appliance | Growatt VITA 550 | Pecron E3600LFP |
|---|---|---|
| Refrigerator | 7.6 hrs | 42.5 hrs |
| Mini fridge | 14.5 hrs | 81.0 hrs |
| Chest freezer | 5.7 hrs | 31.9 hrs |
| CPAP machine | 11.4 hrs | 63.8 hrs |
| Sump pump | ❌ | 3.2 hrs |