EcoFlow DELTA 3 Classic Portable Power Station review
Keeping a fridge, router, phones and a few lights running through a multi-hour power cut, for households who won't need to expand capacity later.
By Tom Calder · Price last checked 20 September 2026 · price indicative
The best-value model in EcoFlow's current 1kWh range, and the lowest-priced of its three: the same 1,800W output and LFP chemistry as the DELTA 2, a slightly faster 45-minute 0-80% mains recharge, and a 10ms UPS switchover. The trade-off is that this 'Classic' model's capacity is fixed: unlike the DELTA 2 there is no extra-battery port, so 1,024Wh is what you get.
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- LFP cells EcoFlow rates for a 10-year lifespan, backed by up to 5 years' warranty (3 years standard, 2 more when registered in the EcoFlow app)
- Recharges 0-80% in 45 minutes on the mains (60 minutes to full), with a built-in 10ms UPS switchover for sensitive electronics like a router or NAS
- 1,800W continuous output (3,600W surge; up to 2,400W via X-Boost) covers most household essentials
- Unlike the DELTA 2, there is no extra-battery expansion port, so 1,024Wh is a hard ceiling — the standard DELTA 3 or DELTA 3 Plus (1-5kWh expandable) exist if you might want more later
- No 12V car-style DC output port, unlike the standard DELTA 3 / DELTA 3 Plus
- Only 5 outputs (2 AC, 1 USB-A, 2 USB-C), fewer than EcoFlow's DELTA 3 and DELTA 3 Plus
Who shouldn't buy this
You only need to keep phones, a tablet and a laptop topped up — a much cheaper power bank does that job. And skip this specific 'Classic' model if you think you'll want to add capacity later, since it has no expansion port; the standard DELTA 3 or DELTA 3 Plus do.
Key specs
| Capacity | 1,024 Wh |
| Output | 1,800 W |
| Weight | 12.1 kg |
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Alternatives to consider
as of 20 Sep 2026, 12:29 BST · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.as of 20 Sep 2026, 12:29 BST · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.Want this cheaper?
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