Short Home Outages
Keeping the fridge, Wi-Fi and phones alive for hours
EF ECOFLOW · Extra large
3.60 kWh of storage, 4.5 kW of continuous AC output, listed at $2,599. That works out to $0.72 per watt-hour and 36.4 watt-hours per pound. Spec figures below are taken from EF ECOFLOW’s own product page; WattPicks editors are deep-use experience reviewers, not a pretend third-party lab for every SKU.

What this unit is for
We have not yet written a positioning profile for this brand.
Best suited to: General portable power.
Multi-day backup, off-grid and whole-home loads.
A tracked retailer link appears here only when we have a resolved offer for this model. We do not send readers to a manufacturer store page we cannot attribute.
3 of 19 fields are published by EF ECOFLOW for this model. The rest are shown as “—” and are excluded from rankings rather than estimated.
| Rated Wh (nameplate) | 3.60 kWh |
|---|---|
| AC output (continuous) | 4.5 kW |
| AC surge | — |
| Power lifting / boost | — |
| Battery chemistry | — |
| Rated cycles | — |
| Weight | 99.0 lb |
| AC recharge to full | — |
| Max solar input | — |
| AC outlets | — |
| USB-C ports | — |
| USB-A ports | — |
| 12V car port | — |
| UPS switchover | — |
| Max expandable capacity | — |
| Warranty | — |
| Noise level | — |
| Ingress protection | — |
| Operating temp (low) | — |
| List price | $2,599 |
Where these numbers come from. WattPicks does not test power stations — this is a spec profile, not a review. Every figure on this page is taken from EF ECOFLOW’s own product listing and is stored with the vendor’s exact wording, reproduced below. We do not estimate missing specs — a field the vendor does not publish is shown as “—” and excluded from rankings. Source: EF ECOFLOW listing on Amazon.
capacityWh: “3600Wh/75Ah”acOutputW: “4500”weight: “99 pounds”3.60 kWh capacity; 4.5 kW continuous AC; 99.0 lb; listed at $2,599. 3 of 19 fields are published by EF ECOFLOW on the product page we read.
The vendor does not publish a cycle rating for this model on the page we read. Runtime is still capacity ÷ load; chemistry and duty cycle decide calendar life.
No maximum solar input is published on the product page we read, so we cannot state a solar ceiling for this model.
At the published list price it works out to $0.72 per watt-hour. Compare that figure on our cost-per-watt-hour ranking rather than price alone.
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Position among all 141 power stations we track, in each dimension this unit publishes the inputs for.
| Dimension | Rank | Value |
|---|---|---|
| Best value (cost per watt-hour) | #84 of 132 | $0.72 |
| Most portable (Wh per pound) | #63 of 135 | 36.4 Wh/lb |
| Most inverter headroom | #76 of 141 | 125 W/100Wh |
| Most output per dollar | #98 of 141 | 1.73 W/$ |
Keeping the fridge, Wi-Fi and phones alive for hours
Living and working from a vehicle, on solar and alternator charging
Cabins, sheds, job sites and self-built systems


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