EF ECOFLOW
EcoFlow DELTA Pro Ultra Whole-Home Battery
$4,199.00
Reference price as of 2026-08-23 — check Amazon for the current price and stock.
Homeowners who want a scalable whole-home battery system without committing to a full Tesla Powerwall-class installation from day one.
Full spec sheet
| Key specs | |
| Brand | EF ECOFLOW |
| Price | $4,199.00 |
| Capacity | 6,144 Wh |
| Continuous output | 7200 W |
| Peak / surge output | — |
| Weight | — |
| Battery chemistry | LiFePO4 |
| Dimensions (L x W x H) | — |
| Includes solar panel | No |
| Use cases | Home |
| Other verified specs | |
| Solar input | 5.6kW base, up to 16.8kW with 3 inverter stacks (EcoFlow official site) |
| Max AC output (expanded) | Up to 21.6kW with 3 inverters and Smart Home Panel 2 |
| Price note | $4,199 is EcoFlow's own listed price for the base unit (down from $5,799 MSRP) as of this writing — confirm current price via the Amazon button |
| Source | us.ecoflow.com official product page |
Pros
- UL1973 and UL9540 certified — the safety standards for home battery energy storage
- 7,200W continuous output covers a 3-ton central AC unit and most whole-home loads from a single unit
- Expandable from 6kWh to 90kWh by stacking additional battery and inverter modules
- 3,500 charge cycles to 80% capacity — roughly a decade of near-daily use
Cons
- $4,199 entry price is for the base 6kWh unit only — full whole-home coverage needs additional batteries/inverters sold separately
- Professional installation is effectively required to integrate with a home's electrical panel
- Weight and dimensions are not published on the standard listing — confirm clearance before buying
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