EcoFlow Delta 2 vs Bluetti AC180: Which Power Station Wins?

The EcoFlow Delta 2 and the Bluetti AC180 are the two best-known portable power stations in the 1 kWh class, and on paper they look almost identical: both use long-life LiFePO4 batteries, both deliver 1,800 W of continuous AC output, and both accept up to 500 W of solar input.

So which one should you buy? The differences hide in the details: capacity, weight, charging speed, outlets, expandability and price. This guide compares them spec by spec, using the manufacturers’ own published specifications, so you can match the right station to your camping trips, road trips or home backup plan.

The Quick Answer: EcoFlow Delta 2 vs Bluetti AC180

Pick the Bluetti AC180 if you want the most built-in capacity in one box. Its 1,152 Wh battery is about 12% bigger than the Delta 2’s, it charges faster from the wall (1,440 W turbo input, 0-80% in about 45 minutes), it is rated for 3,500+ cycles to 80% capacity, and it adds a 15 W wireless charging pad on top.

Pick the EcoFlow Delta 2 if you want the lighter, more expandable station. At 27 lbs (12 kg) it is roughly 8 lbs lighter than the AC180, it has more AC outlets (6 in the US model), it connects over both Wi-Fi and Bluetooth, and it is the only one of the two that natively accepts extra batteries, growing from 1,024 Wh to 2,048 Wh or 3,040 Wh.

Side-by-side specs

All figures below are taken from the manufacturers’ published product pages (ecoflow.com, bluettipower.com), checked October 2026.

Spec	EcoFlow Delta 2	Bluetti AC180
Capacity	1,024 Wh	1,152 Wh
Continuous AC output	1,800 W	1,800 W
Surge power	2,700 W	2,700 W
Boost mode	X-Boost (2,200 W US / 2,400 W UK)	Power Lifting (up to 2,700 W, resistive loads)
Battery chemistry	LiFePO4 (LFP)	LiFePO4 (LFP)
Cycle life	3,000+ cycles to 80%+	3,500+ cycles to 80%
AC charging	1,200 W (0-80% ~50 min, full ~80 min)	1,440 W turbo (0-80% ~45 min, full 1.3-1.8 h)
Solar input	500 W max (11-60 V)	500 W max (VOC 12-60 V)
Car charging	12/24 V, 8 A	12/24 V
AC outlets	6 (US) / 4 (UK-EU)	4 (US) / 2 (UK-EU)
USB-C ports	2 x 100 W	1 x 100 W
USB-A ports	2 x 12 W + 2 x 18 W fast charge	4 x 15 W
12 V DC outputs	Car port 126 W + 2 x DC5521	Car port 12 V/10 A
Wireless charging	No	15 W pad
Expandable	Yes (2,048 Wh / 3,040 Wh)	No native expansion
App	Wi-Fi + Bluetooth	Bluetooth
EPS/UPS-style switchover	~30 ms	~20 ms
Weight	27 lbs (12 kg)	35.27 lbs (16 kg)
Warranty	5 years	5 years

What is the EcoFlow Delta 2?

The EcoFlow Delta 2 is EcoFlow’s mid-size portable power station. It packs 1,024 Wh of LiFePO4 battery into a 27-lb box with 1,800 W of pure sine wave AC output, enough for a fridge, microwave, coffee maker or most power tools.

Its signature trick is charging speed: X-Stream AC charging refills 0-80% in about 50 minutes, and it takes up to 500 W of solar through its built-in MPPT controller. X-Boost mode runs higher-wattage resistive loads without tripping (2,200 W US / 2,400 W UK).

Where the Delta 2 stands apart is expandability: add a DELTA 2 extra battery to reach 2,048 Wh, or a DELTA Max extra battery to reach 3,040 Wh. You control it through the EcoFlow app over Wi-Fi or Bluetooth.

What is the Bluetti AC180?

The Bluetti AC180 leads on raw built-in specs. The 1,152 Wh LiFePO4 battery is the biggest base capacity of the two, rated for 3,500+ cycles to 80% capacity, 500 more than the Delta 2’s published rating.

Output is the same 1,800 W continuous with 2,700 W surge, plus Power Lifting mode for heating-class resistive loads up to 2,700 W (not meant for air conditioners or washers). Wall charging is faster: 1,440 W turbo input fills 0-80% in about 45 minutes, full in 1.3-1.8 hours.

Extras include a 15 W wireless charging pad, pass-through charging, and the Bluetti app over Bluetooth with over-the-air updates. The trade-offs: at 35.27 lbs (16 kg) it is noticeably heavier, and there is no native extra-battery expansion.

How do capacity and runtime compare?

The AC180’s 1,152 Wh gives it about 128 Wh more in the box than the Delta 2’s 1,024 Wh, roughly 12% extra runtime for the same load. A practical planning formula used by hands-on testers is battery Wh x 0.85 / average appliance watts, where 0.85 allows for inverter and system losses.

On that math, a fridge averaging 100 W runs about 8.7 hours on the Delta 2 and 9.8 hours on the AC180. Real results vary with temperature, start-up surge and door openings, so test your own gear before an emergency.

The bigger story is growth. If your needs might increase, the Delta 2’s extra battery ecosystem (up to 3,040 Wh) is the clear winner. The AC180’s expansion batteries can charge it through Power Bank Mode with a cable, but that is not the same as native pack stacking.

How fast do they charge?

Both are quick, but the AC180 edges ahead on wall power. Its 1,440 W turbo AC input is among the fastest in this class: about 45 minutes to 80% and 1.3-1.8 hours for a full charge.

The Delta 2’s 1,200 W X-Stream input reaches 80% in about 50 minutes and 100% in about 80 minutes, so the real-world gap is small. On solar, both accept up to 500 W, roughly 3-6 hours for a full charge in good sun. Both also charge from a car’s 12/24 V socket for road-trip top-ups.

What can you plug into each one?

Count your devices before you choose, because outlet layouts differ by region. The US Delta 2 has 6 AC outlets versus the US AC180’s 4; in the UK and EU the Delta 2 has 4 and the AC180 has 2, so check your local model.

The Delta 2 also gives you two 100 W USB-C ports against the AC180’s one, which matters when two people need fast laptop charging. The AC180 answers with four USB-A ports, a regulated 12 V car port and the 15 W wireless pad for cable-free phone top-ups.

Both can act as short-gap UPS-style backup: third-party comparisons list switchover around 30 ms for the Delta 2 and around 20 ms for the AC180. Either is fast enough for most routers and PCs, but neither is a true online UPS, so test critical equipment carefully.

Which one is easier to carry?

The Delta 2 wins portability clearly: 27 lbs (12 kg) versus 35.27 lbs (16 kg). Eight pounds does not sound like much until you carry it up apartment stairs or load it into a car every weekend.

The AC180’s shape is compact and its handle is fine for short moves, but for frequent carrying, camping and road trips, the Delta 2 is the easier companion. If the station will mostly sit in one spot as home backup, the AC180’s extra weight stops mattering and its extra capacity starts mattering.

What about the apps and smart features?

The EcoFlow app connects over Wi-Fi and Bluetooth, so you can monitor the Delta 2 from anywhere, adjust charging speed and install firmware updates. The Bluetti app connects over Bluetooth only, covering monitoring, power settings and over-the-air updates when nearby. Both offer pass-through charging. EcoFlow’s broader ecosystem is a plus if you own its panels; Bluetti’s app is simpler but does the job.

How much do they cost?

Prices move constantly with sales, so treat these as 2026 reference points, not live quotes. In the US, the Bluetti AC180 has typically listed around $749-$899, while the EcoFlow Delta 2 has typically listed around $899-$999, with sale prices sometimes dropping below $800.

In the UK, Bluetti’s own page listed the AC180 at £429 (down from £639), and EcoFlow’s UK page listed the Delta 2 at £549. Both carry a 5-year warranty.

Note that stock can be patchy: EcoFlow’s UK page showed the Delta 2 out of stock at our October 2026 check, and Bluetti’s US page has shown the base AC180 out of stock with restock estimates, so confirm availability before you plan around a sale price.

Which one should you buy?

Buy the Bluetti AC180 if you want simple home backup with the most built-in capacity, the fastest wall charging and the longest published cycle life, and you will not need to expand later. It is the better one-box pick for a fridge, router, phones and lights through an outage.

Buy the EcoFlow Delta 2 if you carry your station often, want more outlets and faster multi-device USB-C charging, or plan to grow into a bigger system with extra batteries. Campers, road-trippers and apartment dwellers will feel the weight difference every time they move it.

Either way you get a proven LiFePO4 station with 1,800 W of output and 500 W of solar input. Match the choice to your real loads: buy for the weight you will carry and the capacity you will actually use, not the longest feature list.

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Frequently asked questions

Is 1,152 Wh vs 1,024 Wh a big difference? It is real but modest: about 12% more runtime on the AC180 for the same load, roughly an extra hour on a 100 W fridge. Do not let it decide the purchase on its own.

Can either one run my full-size refrigerator? Yes, both have 1,800 W continuous output, which covers most household fridges including start-up surge. Runtime is the limit: roughly 9-10 hours at 100 W average draw. Test your own fridge before relying on it.

What does X-Boost / Power Lifting actually do? Both let the station run some loads above its 1,800 W rating by lowering voltage to resistive devices like heaters and kettles. They do not turn the station into a higher continuous-output unit, and Bluetti excludes air conditioners and washers.

Can I expand the Bluetti AC180 later? Not natively like the Delta 2. Bluetti’s B80/B230/B300 expansion batteries can charge the AC180 through Power Bank Mode with a cable, which is useful but not the same as stacking capacity.

Which wins: EcoFlow Delta 2 vs Bluetti AC180? In EcoFlow Delta 2 vs Bluetti AC180, Bluetti wins on capacity (1152Wh) and turbo charging; EcoFlow wins on weight and expansion. The EcoFlow Delta 2 vs Bluetti AC180 choice depends on whether you need more stored energy or more portability.

Last reviewed: 11 October 2026

Price note: power station prices change frequently with sales and vary by region and retailer. Always check the manufacturer’s or retailer’s current page for today’s price and stock before buying.

By TheSolarCost Editorial Team