EcoFlow DELTA 3 Plus Portable Power Station review
Households that want the fridge, router and phones covered for a long power cut and may add a second battery later — the expandable 1kWh choice.
By Tom Calder · Price last checked 22 September 2026 · price-tracked
This is the DELTA 3 Classic with the door left open. Same 1,024Wh LiFePO4 pack, which EcoFlow rates at 4,000 cycles to 80% (it quotes the Classic only as a 10-year life), same 1,800W output, but with an extra-battery port that takes it to 5kWh, dual solar inputs up to 1,000W, 140W USB-C ports and a 56-minute mains recharge. For a home that wants to start with one unit and grow into whole-fridge, whole-day backup, it is the better buy than the Classic; for a home that will never expand, the Classic does the same job for less. EcoFlow's UK store listed it as available to order rather than in stock when we checked; Amazon had it in stock at the same price.
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- Expandable to 5kWh with EcoFlow's extra batteries, and dual solar inputs up to 1,000W — the 1kWh unit you won't outgrow
- LiFePO4 cells rated for 4,000 cycles to 80%, IP65-rated battery pack, five-year UK warranty
- Full mains recharge in 56 minutes, under-10ms UPS switchover, and four mains sockets with 140W USB-C for laptops
- Costs more than the DELTA 3 Classic for the same capacity and output — only worth it if you'll use the expansion port or the solar inputs
- At 12.5kg it is a two-hands carry, not something to move around casually
- Kettles and electric heaters remain off the menu: 1,800W (2,400W with X-Boost) covers essentials, not heating
Who shouldn't buy this
You know you'll never add a battery or solar panels — the DELTA 3 Classic is the same power station without the ports you won't use. And if a fridge isn't on your list, a 300Wh unit or a big power bank covers phones, lights and the router for a fraction of the price.
Key specs
| Capacity | 1,024 Wh |
| Output | 1,800 W |
| Weight | 12.5 kg |
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Alternatives to consider
as of 21 Sep 2026, 23:02 BST · Details
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