Bluetti AC180 vs EcoFlow Delta 2: Best Mid-Range Power Station?

Bluetti AC180 vs EcoFlow Delta 2: Best Mid-Range Power Station?

The mid-range portable power station market is fiercely contested, and two models that buyers consistently weigh against each other are the Bluetti AC180 and the EcoFlow Delta 2. Priced between $700 and $850, both stations target the same audience: homeowners who want reliable backup power, campers who need to run more than a phone charger, and remote workers who can’t afford to lose electricity. They share similar capacities and output ratings, but their differences in battery chemistry, expandability, and charging architecture create meaningfully different ownership experiences. Here’s how they stack up.

Head-to-Head Spec Comparison

Spec	Bluetti AC180	EcoFlow Delta 2
Capacity	1152Wh	1024Wh
AC Output	1800W (2700W surge)	1800W (2700W surge)
Battery Type	LFP (LiFePO4)	LFP (LiFePO4)
Cycle Life	3500+ cycles to 80%	3000+ cycles to 80%
AC Charging Speed	0-100% in ~1.3 hours	0-100% in ~50 minutes
Solar Input	500W max	500W max
Expandable	No	Yes, up to 3kWh
UPS Mode	Yes (20ms)	Yes (20ms)
Weight	36.7 lbs	27 lbs
Price (MSRP)	~$699	~$849

Capacity

The Bluetti AC180 comes out ahead with 1152Wh compared to the Delta 2’s 1024Wh, a 12% advantage that translates to meaningful extra runtime. For a device drawing 100W, that is roughly an extra hour of use. The AC180 also boasts a slightly longer cycle life at 3500+ cycles to 80% capacity versus 3000+ cycles for the Delta 2, meaning it should retain its usefulness for a longer period before the battery degrades.

However, the EcoFlow Delta 2 has a major advantage in expandability. By adding an extra battery, you can grow the system up to approximately 3kWh of total capacity. The Bluetti AC180 has no expansion option whatsoever. If you think you might need more capacity down the road, the Delta 2’s modular approach is worth the tradeoff of slightly less base capacity.

Output

Both stations deliver 1800W of continuous AC output with identical 2700W surge ratings. In practice, this means either one can handle a mini fridge, a CPAP machine, a blender, power tools, or a small space heater. You will not find a meaningful difference in what appliances they can run.

Both also offer UPS functionality with a 20ms switchover time, making either station a viable option for keeping a computer or home networking equipment running through brief outages. This is a feature that some cheaper competitors omit, so having it on both of these mid-range units is a welcome inclusion.

Charging Speed

This is where the EcoFlow Delta 2 establishes a clear lead. It charges from 0 to 100% in roughly 50 minutes via a wall outlet, which is exceptionally fast for a 1kWh-class station. The Bluetti AC180 takes approximately 1.3 hours for a full charge. While 80 minutes is by no means slow, it is nearly double the Delta 2’s time.

For solar charging, both stations accept up to 500W of input, so performance will be comparable when running off panels. The difference is strictly in wall charging speed. If you frequently need to top off your station quickly before heading out, the Delta 2 has a notable advantage.

Portability

The EcoFlow Delta 2 is significantly lighter at 27 lbs compared to the Bluetti AC180’s 36.7 lbs. That nearly 10-pound difference is substantial and immediately noticeable when carrying either unit. The Delta 2 is one of the lighter stations in its capacity class, while the AC180’s weight is more typical of stations with even larger batteries.

For camping, tailgating, or any scenario where you are loading the station into and out of a vehicle regularly, the Delta 2 is the easier station to live with. If your station will mostly stay in one place at home, the weight gap matters less, but it is still worth considering.

Price

The Bluetti AC180 typically sells for around $699, while the EcoFlow Delta 2 comes in at approximately $849. That $150 difference is meaningful in the mid-range segment. The AC180 offers more capacity and longer cycle life for less money, which makes it an exceptional value proposition.

The Delta 2 justifies its higher price with faster charging, lighter weight, and expandability. Whether those features are worth $150 more depends entirely on your priorities. If you value flexibility and charging speed, the premium makes sense. If you want the most battery for the least money, the AC180 wins.

Verdict

Both the Bluetti AC180 and EcoFlow Delta 2 are strong mid-range power stations that will serve most buyers well. The choice comes down to what you prioritize most.

Choose the Bluetti AC180 if you want the best value with more capacity and longer battery life at a lower price. It is ideal for buyers who know 1152Wh is enough for their needs and don’t require expandability. The savings can go toward solar panels or other accessories.

Choose the EcoFlow Delta 2 if you value fast charging, lighter weight, and the ability to expand to 3kWh in the future. It is the better pick for active users who transport their station frequently and want a system that can grow with their power needs.