Best Overall
EF ECOFLOW
EcoFlow Delta 3 Max
$899.00
Reference price as of 2026-08-22 — check Amazon for the current price and stock.
Home backup buyers who want meaningfully more capacity than the base Delta 3 without EcoFlow's largest units.
Full spec sheet
| Key specs | |
| Brand | EF ECOFLOW |
| Price | $899.00 |
| Capacity | 2,048 Wh |
| Continuous output | 2400 W |
| Peak / surge output | 4800 W |
| Weight | — |
| Battery chemistry | LiFePO4 |
| Dimensions (L x W x H) | — |
| Includes solar panel | No |
| Use cases | Home |
| Other verified specs | |
| X-Stream fast charge | 0-80% in 51 minutes (EcoFlow/Amazon listing) |
| X-Boost output | Up to 3,200W for heavy appliances |
| Not found | Weight isn't listed on the sources we reviewed |
Pros
- Roughly double the base Delta 3's capacity at 2,048Wh
- Fast charging: 0-80% in 51 minutes
- X-Boost extends output to 3,200W for heavy appliances
- 22 reviews at 4.4/5 — a more established track record than most new entries here
Cons
- Weight isn't published on the listings we reviewed
- Number of AC outlets isn't specified
- Large footprint (49.4cm long) versus more compact stations in this comparison
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