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, making it the pick if charging speed matters most. The Bluetti AC180 starts with slightly more base capacity (1,152Wh vs. 1,024Wh) at a lower price and actually expands further — up to 4,224Wh versus the Delta 2’s 3,040Wh ceiling — making it the pick for value and long-term growth room alike. Neither is wrong — the choice comes down to whether you value recharge speed or upfront value plus the bigger expansion path.
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 | Yes, to 4,224Wh |
| 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, though the AC180 actually expands further (4,224Wh, covered below) — EcoFlow’s real edge is getting back to full faster between charges, not capacity headroom. Both brands back their base units with a full 5-year warranty, so coverage length isn’t a differentiator here.
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.
Stocking up on a spare battery or solar panel to go with it? Amazon Prime ships the heavy stuff free in two days — you can try it free for 30 days.
Where Bluetti wins
Bluetti’s advantage is value and expansion room. The AC180 starts with slightly more base capacity than the Delta 2 — 1,152Wh versus 1,024Wh — while typically selling for $150-200 less, and it expands further too: up to 4,224Wh with Bluetti’s B80/B230/B300 add-on batteries, per bluettipower.com’s official specs, versus the Delta 2’s 3,040Wh ceiling. Bluetti rates the AC180’s LiFePO4 cells for 3,500+ cycles to 80% capacity, which works out to well over a decade of daily use before meaningful degradation. If you want the most watt-hours per dollar today and the bigger long-term growth path, the AC180 is hard to beat.
Bluetti AC180
- More base capacity than the Delta 2, usually at a lower price.
- Rated for 3,500+ cycles to 80% capacity — well over a decade of regular use.
- Expandable to 4,224Wh with add-on batteries — the higher ceiling of the two.
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, plus the higher expansion ceiling (4,224Wh vs 3,040Wh) if you grow into a bigger system later. Both use long-life LiFePO4 and both are excellent 1kWh units; the right answer mostly comes down to whether recharge speed or upfront value matters more to you. Also cross-shopping the value brands? See our Anker SOLIX vs Bluetti breakdown, how Bluetti stacks up against Jackery in Jackery vs Bluetti, or the premium brands in Jackery vs EcoFlow. See how EcoFlow compares to Goal Zero in EcoFlow vs Goal Zero. For the full breakdown, read our Bluetti AC180 review.