Best Overall
EF ECOFLOW
EcoFlow Delta 3
$569.00
Reference price as of 2026-08-22 — check Amazon for the current price and stock.
Van life and anyone who needs to protect sensitive electronics from micro-outages, on top of fast charging.
Full spec sheet
| Key specs | |
| Brand | EF ECOFLOW |
| Price | $569.00 |
| Capacity | 1,024 Wh |
| Continuous output | 1800 W |
| Peak / surge output | 3600 W |
| Weight | 26 lb |
| Battery chemistry | LiFePO4 |
| Dimensions (L x W x H) | — |
| Includes solar panel | No |
| Use cases | Van Life, Off-Grid |
| Other verified specs | |
| X-Stream fast charge | 0-100% in 56 minutes with 1,500W AC input (EcoFlow official spec) |
| Built-in UPS | Switches to battery in under 10 ms — protects sensitive electronics through an outage |
| X-Boost | Extends output up to 2,200-2,400W for heavier one-off loads |
| Solar charging | 0-100% in 2.5 h with an optional 500W solar panel |
| USB-C | Up to 100W |
| Warranty | 5 years (EcoFlow official) |
Pros
- The fastest charging in this comparison: 0-100% in 56 minutes
- Built-in UPS (<10 ms) protects sensitive electronics
- 1,800W continuous, extendable to ~2,200-2,400W with X-Boost
- Compact and light (11.8 kg)
Cons
- Still very few reviews for this specific listing on Amazon (only 2)
- The number of AC outlets isn't specified on the listing
- Lower capacity than the BLUETTI by a wide margin
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