Environmentally friendly and rechargeable power stations are making huge inroads in territory once exclusively held by gas-powered generators. These relatively silent (they do have cooling fans) and compact products generate impressive power outputs.
Two products aimed squarely at each other are the Bluetti AC200MAX and the Ecoflow Delta Max. They are so similar in size, power output features, and cost that it is clear that each manufacturer identifies the other as one of their key competitors.
In this article, we objectively compare each Bluetti and Ecoflow product in terms of features, capabilities, and costs to help you decide.
Portability and Mobility
The AC200MAX weighs in at 61.0 lbs (28.1 kg), 150% more than the weight of the Delta Max, which weighs 48 lbs (21 kg).
Although the Bluetti is the same height and width as the Ecoflow, it is a little more compact, being just over half the length. Despite its weight, you are still able to move it around.
Use Case Flexibility
Both power stations are designed for indoor or outdoor use, which means that each offers tremendous flexibility to the user.
It is a pity that neither machine is equipped with protective bumpers, and therefore, they will require care to ensure the casing is not damaged.
Although both are protected from small accidental splashes of water, they are not considered to be waterproof and should not be used in the rain.
An optional Delta Max waterproof bag is available for the Ecoflow, which makes it possible to use in rainy weather.
Each one of the power stations is supplied with a smartphone app (iOS and Android) that enables it to be remotely monitored and activated.
Even if this feature is more of a gimmick than a genuine benefit, it is a great party trick and may be useful if you are not nearby.
The Power Outputs
|Output Type||Bluetti AC200MAX||Ecoflow Delta Max|
|Phases||240 Volt Split Phase Bonding||230 Volt Split Phase Bonding|
|AC Output||110 Volts – total 2200Wh (6 outlets)||110 Volts – total 2400Wh (5 outlets)|
|X-Boost Output||n/a||3400W (1 outlet) *|
|Car DC Outlet||12V/10A (1 outlet)||12V/10A (1 outlet)|
|RV DC Outlet||12V/30A (1 outlet)||N/a|
|DC 5521 Output||12V/10A (2 outlets)||12.6V/3A (2 outlets)|
|USB-A Output||5V/3A (2 outlets)||5V, 2.4A, 12W (2 outlets)|
|USB-A Fast Charge||18W (2 outlets)||18W (2 outlets)|
|USB-C Output||100W (1 outlet)||100W (2 outlets)|
|Wireless Charging Pads||2 x 15W Max (For Each)||None|
📝 Editor’s Note: Delta Max has an X-Boost Output outlet that continuously produces 3.4 kW (higher than the standard 2kW normal production) for long periods. This proprietary system slightly reduces the voltage and amperage of the electrical consumer, preventing the system from tripping.
They are closely matched in output capabilities. Even though the AC200MAX has a slightly lower overall power production (2,0 kW compared to 2.4 kW), both machines have the same impressive number of outputs (15).
The Bluetti has two wireless charging pads installed on top of the device, which are a very convenient and useful feature.
Both have very high surge outputs, enabling appliances with large induction motors to be run off them.
- Bluetti AC200MAX – 4,800w (4.8 kW)
- Ecoflow Delta Max – 5,000w (5.0kw)
The Inputs Can Be Duplicated
Both products can be charged by using two sources of electricity simultaneously. This reduces charging times.
|Bluetti AC200MAX||Ecoflow Delta Max|
|AC Adapter Input||500W (Max 1,000W)||1800W Max|
|Solar Input||900W Max||800W Max|
|Input from Car Cigarette Lighter Port||12V or 24V, 8A Max||12V or 24V, 8A Max|
|Max Input all sources||1,400W, from a combined AC Adaptor and Solar Input||2,000W from a combined AC Adaptor and Solar Input|
These inputs will result in the following charging times.
|Bluetti AC200MAX||Ecoflow Delta Max|
|AC Adapter Input||5.5 – 6 hours||1.6 Hours|
|Solar Input||3 – 3.5 Hours *||3.2 – 6.3 Hours *|
|Input from Car Cigarette Lighter Port||10 or 20 Hours||21 Hours|
|AC Adapter + Solar||2.0 – 2.5 Hours||1 hour|
|Two AC Input adaptors||3.0 – 3.5 Hours||n/a|
📝 Manufacturers Note: Charge times from solar assume the maximum possible sunlight using the highest-rated solar panels (2x 400W) that each manufacturer recommends.
Expandable Power Supply
The power supplied by each machine can be expanded as follows:
- AC200MAX can be expanded to 8.2 kWh (8,192Wh) by adding two B300 batteries.
- Adding two additional batteries allows the Ecoflow Delta Max to be expanded to 6.0 kWh (6,048Wh.)
The most important difference between each is the battery chemistry. It’s a big reason as to why the Ecoflow charges much faster, but there are also significant drawbacks. Let’s explore that now.
The Battery Technology
Power stations are essentially portable batteries that contain an installed inverter (to convert DC to AC power). The type of battery chemistry employed in each device is critical.
- AC200MAX – LiFePO4 (Lithium Iron Phosphate)
- Delta Max – Lithium NCM batteries (Nickel Cobalt Oxide Manganese).
The advantages and disadvantages of each technology are detailed below.
The Shelf Life And Life Expectancy Of The Batteries
Two time-based metrics of the batteries are relevant to the comparison.
Shelf Life (Period The Battery Is Stored)
Ecoflow’s instructions indicate that the NCM batteries have a shelf life of 12 months (when they can be left and not be charged).
The LiFePO4 batteries in the AC200MAX should be recharged to 80% capacity every 3 to 6 months.
The Longevity (Expected Life Of The Batteries)
The manufacturers predict the following life expectancy for each battery type:
|Discharge And Recharge Cycles There Will Be 80% of the Battery Capacity||3,500 cycles||800 cycles|
|Discharge And Recharge Cycles There Will Be 50% Of Battery Capacity||6,500 cycles||1,200 cycles|
The LiFePO4 batteries in the AC200MAX will provide four to five times more charge/discharge cycles than the Ecoflow’s NCM batteries.
If the batteries were cycled daily, they would continue providing 80% capacity after the following periods:
- LiFePO4 batteries – 8 years and four months
- NCM batteries – 2 years and four months.
Size And Weight
|Ecoflow Delta Max||19.6in (49.7cm)||9.5in (24.2cm)||12in (30.5cm)||48lbs (22kg)|
|Bluetti AC200MAX||16.5in (42cm)||11in (28cm)||15.2in (38.6cm)||61lbs (28.1kg)|
The weight difference between the two may not seem large, but if they are going to be carried over a long distance, it will quickly make itself felt! Those 13 lbs. difference will feel like a ton when the generator is hefted over a long distance.
The Product Prices
|BLUETTI AC200MAX||Ecoflow Delta Max|
|Number of cycles to 80%||3,500||800|
|Cost per charge/discharge cycle||$0.61||$1.99|
|Max Watts||3400W (X-Boost)||2,200W|
|Cost per watt||$0.47||$0.85|
While the Delta Max costs less than the AC200MAX, the longer-term value rests with the Bluetti.
You get more power for every dollar spent, lasting over 4 times longer.
This makes the AC200MAX the most cost-effective of the two products.
The AC200MAX has two nice features, which show a lot of thought was exercised in their design.
- It has two wireless charging pads, meaning compatible smart devices can be charged without carrying chargers.
- It has a dedicated 12V/30A RV Outlet.
The tech is growing quickly and has not always been tested to the expected end of its lifespan.
Ecoflow adds an additional warranty year (5 in total) into the already substantial 4 years offered by the Bluetti AC200max.
The extended warranty period is useful considering the NCM battery’s greater instability and shorter expected lifespan.
The Certifications and Compliance
|BLUETTI AC200MAX||Ecoflow Delta Max|
|CEC (California Energy Commission)||Yes||Yes|
|DOE (US Department of Energy)||Yes||No|
|FCC (Federal Communication Commission)||Yes||Yes|
|CA Prop 65 (California Proposition 65)||Yes||No|
|TELEC (Telecom Engineering Center)||No||Yes|
Overall, the Bluetti is the winner. While it is a little more expensive, it is more cost-effective when calculated against the expected lifespan.
It also has a surge power level (to start equipment with induction motors) of 4.8kW of power, making it able to run higher-powered consumers.
The LiFePO4 batteries in the AC200MAX are a better fit for purpose than the NCM batteries in the Ecoflow.
Does that mean the Ecoflow Delta Max has no place in my verdict? It is still a very competent machine, and under the following circumstances, it would be worthy of serious consideration:
- Lower upfront budget.
- Used infrequently and stored for long periods.
- Needed to run appliances requiring higher levels of power.
- It needs to be carried for longer distances (it is lighter).
- The X-Boost feature is available for longer periods than the surge power of the BLUETTI AC200MAX.
- While neither machine is waterproof, a cover can be purchased separately, enabling use in rainy conditions.
If, after reading this comparison, you discover that neither option meets your requirements, I recommend exploring this guide on appropriately sizing a solar generator or comparing the Bluetti AC300 and the Ecoflow Delta Pro, which offers a more advanced solution.