Quick answer
EcoFlow and Bluetti both build long-life LiFePO4 power stations, but they win on different things. The EcoFlow Delta 2 recharges from a wall outlet in about 50 minutes and expands to 3,040Wh with an add-on battery, making it the pick if you want speed and room to grow. The Bluetti AC180 starts with slightly more base capacity (1,152Wh vs. 1,024Wh) at a lower price, making it the pick if you just want the most watt-hours per dollar and don’t need to expand later. Neither is wrong — the choice comes down to whether you value charging speed and expandability or upfront value.
EcoFlow and Bluetti sit right next to each other in the crowded 1kWh power-station class, and on paper their specs look close enough to make picking one feel like a coin flip. It isn’t — the two units trade off in opposite directions on the features that matter most day to day. Here’s the head-to-head, using their popular 1kWh units: the EcoFlow Delta 2 against the Bluetti AC180.
Head to head
| Spec | EcoFlow Delta 2 | Bluetti AC180 |
|---|---|---|
| Capacity | 1,024Wh LiFePO4 | 1,152Wh LiFePO4 |
| AC output | 1,800W (2,700W X-Boost) | 1,800W (2,700W lift) |
| Wall recharge to 80% | ~50 min | ~1.5 hr |
| Max solar input | ~500W | ~500W |
| Expandable | Yes, to 3,040Wh | No |
| Weight | ~27 lb | ~35 lb |
| Price | ~$699 | ~$499 |
Where EcoFlow wins
EcoFlow’s advantage is speed and headroom. According to EcoFlow’s published specs, the Delta 2 recharges from a wall outlet to 80% in about 50 minutes — roughly a third of the time the AC180 takes for the same top-up. That matters most during an actual outage, when a fast recharge between generator runs or grid-power windows can be the difference between staying powered and running dark overnight. The Delta 2 also expands to 3,040Wh with an add-on battery, something the AC180 doesn’t offer at all, so it’s the smarter buy if there’s any chance you’ll want more capacity later.
EcoFlow Delta 2
- ~50-minute wall recharge to 80% — the standout advantage over Bluetti.
- Expandable to 3,040Wh with an add-on battery if your needs grow.
- 2,700W via X-Boost handles resistive loads a straight 1,800W inverter would refuse.
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Where Bluetti wins
Bluetti’s advantage is value. The AC180 starts with slightly more base capacity than the Delta 2 — 1,152Wh versus 1,024Wh — while typically selling for $150-200 less. Bluetti rates the AC180’s LiFePO4 cells for roughly 3,000 cycles to 80% capacity in its own cycle-life testing, which works out to close to a decade of daily use before meaningful degradation. If you don’t need the expansion path and just want the most watt-hours per dollar in a dependable LiFePO4 package, the AC180 is hard to beat.
Bluetti AC180
- More base capacity than the Delta 2, usually at a lower price.
- Rated for ~3,000 cycles to 80% capacity — close to a decade of regular use.
- Full 1,800W inverter with 2,700W lift for startup spikes.
The verdict
Buy EcoFlow (Delta 2) if recharge speed matters or you might expand into a bigger system later — it’s our overall best portable power station pick for a reason. Buy Bluetti (AC180) if you want the most capacity per dollar today and don’t need an expansion path. Both use long-life LiFePO4 and both are excellent 1kWh units; the right answer depends on whether you value speed and growth room or upfront value. Also cross-shopping the value brands? See our Anker SOLIX vs Bluetti breakdown, or the premium brands in Jackery vs EcoFlow.