Bluetti EB3A vs Growatt VITA 550
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
Bluetti EB3A costs $160 less. Whether that gap is worth closing depends on what you need to run.
- Growatt VITA 550 holds 101% more energy (538Wh vs 268Wh), so it runs the same load proportionally longer.
- Bluetti EB3A is 7.5 lb lighter (10.1 lb vs 17.6 lb).
- Growatt VITA 550 is rated for 3,000 cycles vs 2,500 — 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.
The budget veteran. 268Wh at $239 with a 30-minute recharge — still one of the fastest-charging small units you can buy.
Best for: Budget campers who value fast top-ups between trips.
Where it falls short:
- 2500 cycles is the lowest here
- 268Wh empties fast under real load
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
| Spec | Bluetti EB3A | Growatt VITA 550 |
|---|---|---|
| Price | $239 | $399 |
| Capacity | 268 Wh | 538 Wh |
| Continuous output | 600 W | 600 W |
| Surge output | 1200 W | 1200 W |
| Battery | LiFePO4 | LiFePO4 |
| Rated cycles | 2,500 | 3,000 |
| Weight (lighter wins) | 10.1 lb | 17.6 lb |
| Max solar | 200 W | 300 W |
| Recharge time (faster wins) | 30 min | 1h |
Runtime head-to-head
| Appliance | Bluetti EB3A | Growatt VITA 550 |
|---|---|---|
| Refrigerator | 3.8 hrs | 7.6 hrs |
| Mini fridge | 7.2 hrs | 14.5 hrs |
| Chest freezer | 2.8 hrs | 5.7 hrs |
| CPAP machine | 5.7 hrs | 11.4 hrs |
| Sump pump | ❌ | ❌ |