Photos may show foreign plugs/sockets.

EcoFlow Delta 3 Max

Name: EcoFlow Delta 3 Max
Brand: EcoFlow
SKU: ecoflow-delta-3-max
Rating: 4.4 (6 reviews)

(6 reviews)

2048 Wh and 2400 W in a transportable, quiet body: the EcoFlow Delta 3 Max secures a home or a motorhome with a 10 ms UPS switchover.

See price and availability on Amazon

Buy at Amazon

As an Amazon Associate I earn from qualifying purchases.

Characteristics

Capacity: 2048 Wh (LiFePO4)
Output: 2400 W (4800 W surge, 3200 W X-Boost)
Recharge: 0 to 80% in 51 min (mains)
Backup: UPS < 10 ms, 4 AC outlets
2048 Wh, 2400 W and 0-80% recharge in 51 min at a contained price

Detailed overview: EcoFlow Delta 3 Max 2048Wh power station

The EcoFlow Delta 3 Max is a 2048 Wh portable power station designed for big needs: home backup, motorhome, worksite or events. It delivers 2400 W continuous output, with peaks up to 4800 W (and up to 3200 W in X-Boost mode on resistive appliances), enough to power most of a home's devices. It takes the essentials of the Delta 3 Max Plus in a slightly less powerful but noticeably more affordable version.

It debuts the Delta 3 series' new-generation LiFePO4 cells, paired with a smart BMS, for better efficiency and increased lifespan (4000 cycles, i.e. many years of use). During an outage, its automatic UPS switchover in under 10 ms takes over so fast that sensitive devices (computers, routers, light medical equipment) do not shut down.

For recharging, it offers several fast methods (mains, single-MPPT solar up to 500 W, alternator charger, generator) and goes from 0 to 80% in just 51 minutes from the mains. Its 2048 Wh capacity is not expandable: unlike the Delta 3 Max Plus, it has no add-on battery port. A smart energy management system optimises consumption. It offers 4 AC outlets, 3 USB-C ports, 1 USB-A 18 W port and a 12 V output, and is controlled from the EcoFlow app (Wi-Fi and Bluetooth).

Powerful, quiet and with a near-instant backup switchover, the Delta 3 Max is for anyone who wants to secure their home against outages or have a large mobile energy reserve, with the reliability of LiFePO4 chemistry, without paying the Max Plus premium. At 20.3 kg, it remains transportable from point to point.

Full specifications

Detailed characteristics (EAN: 4895251658287)

Battery and capacity

Rated capacity?Total stored energy in watt-hours. The higher the figure, the longer the runtime.	2048 Wh
Delivered energy, measured?Energy that actually leaves the battery and reaches the devices. Always below the stored energy, as conversion costs heat. Taken from our in-depth review.	1900 Wh
Expandable capacity?Whether capacity can be increased with add-on batteries.	No
Removable battery?The main battery can be removed or replaced by the user.	No
Battery chemistry?LiFePO4 (LFP) lasts far longer and is safer than NMC.	LFP (LiFePO4)
Charge cycles?Number of full charges before capacity drops to the stated threshold.	4000 cycles (80 %)
Pack nominal voltage?Internal battery voltage; higher voltage helps deliver high power.	51.2 V

AC output

Continuous AC power?Power the unit can sustain continuously on its 230 V outlets.	2400 W
Surge power?Brief peak tolerated when starting motor or compressor devices.	4800 W
Boost-mode power?Extended power via a proprietary mode (X-Boost, AmpUp…) by lowering voltage.	3200 W
Inverter type?A pure sine wave is essential for sensitive electronics and motors.	Pure sine wave
AC voltage / frequency?Voltage and frequency of the AC output (230 V / 50 Hz in Europe).	230 V / 50 Hz
Number of 230 V AC outlets?Number of mains outlets available on the unit.	4
RV / TT-30 outlet?Dedicated 30 A outlet for North-American style RVs.	No

Recharging

Max AC charging power?Maximum power drawn from a wall socket; higher means faster charging.	2300 W
AC charge 0-80%?Stated time to go from 0 to 80% on mains power.	51 min
AC charge 0-100%?Stated time for a full charge on mains power.	68 min
Max solar input?Maximum solar power accepted at the input (PV panels).	500 W
Accepted solar voltage?Panel voltage range compatible with the solar input.	11 to 60 V
Max solar current?Maximum current accepted on the solar input.	13 A
MPPT controllers?Number of independent MPPT solar inputs (yield optimisation).	1
Vehicle charging (12/24 V)?Can be charged from a vehicle's cigarette-lighter socket.	Yes
Pass-through charging?The unit can power devices while charging (pass-through).	Yes

Ports and connectors

USB-C ports?Number of USB-C ports and the fastest port's power (laptops, phones).	3 × 100 W
USB-A ports?Number of USB-A ports and maximum power (small devices).	1 × 18 W
12 V output (car socket)?12 V cigarette-lighter output and its power (coolers, pumps…).	Yes (126 W)
Other DC outputs?Additional DC connectors (Anderson, DC5521, XT60…).	Allume-cigare

Portability

Weight?Net weight of the unit, battery included.	44.8 lb (20.3 kg)
Dimensions (L × W × H)?Overall size of the unit in millimetres.	19.4 × 9.4 × 12 in (494 × 239 × 305 mm)
Form factor?Portable (hand-carried), transportable (heavy), or wheeled.	Transportable
Wheels?Built-in wheels for moving the unit.	No
Telescopic handle?Retractable handle like a wheeled suitcase.	No

Safety and environment

Certifications?Standards and approvals obtained (CE, RoHS, UN38.3, UL…).	CE, RoHS, UN38.3
Discharge temperature?Temperature range in which the unit can deliver power.	14 to 113 °F (-10 to 45 °C)
Charge temperature?Temperature range in which the unit can be recharged.	32 to 113 °F (0 to 45 °C)

Backup / UPS

UPS / EPS mode?Automatic switch to battery on a mains outage (backup).	Yes
Switchover time (rated)?Delay before switching to battery; under 20 ms suits a PC or router.	10 ms

Noise and thermal

Noise level (rated)?Manufacturer-stated noise; a quiet room is around 30 dB.	25 dB(A)
Quiet mode?Setting that limits fan noise, often by capping charge power.	No
Self-heating battery?Battery pre-heating to allow charging in cold weather.	No

Display and connectivity

Display?Type of screen showing power, runtime and alerts.	LCD
Bluetooth?Bluetooth link for nearby control.	Yes
Wi-Fi?Wi-Fi connection for remote control and monitoring.	Yes
Mobile app?iOS / Android app to control the unit.	Yes
Local control (no cloud)?Control possible over Bluetooth without an account or internet.	Yes
Solar connector?Connector type of the solar input (XT60, Anderson, MC4…).	XT60i

Availability and warranty

Market launch?Date the model first became available on the European market. Useful to place its generation: technology moves fast in this segment, and a device several years old may be at the end of its commercial life.	October 2025
Warranty?Length of the manufacturer's warranty.	5 years

User manual / Instructions for use

⚡ How long will this power station run a device?

With 2 048 Wh, the EcoFlow Delta 3 Max external battery runs a fridge (50 W) for ~35h or an LED TV (90 W) for ~19h.

Home	Runtime
Mini fridge (45 W)	~39h
Refrigerator (50 W)	~35h
Freezer (60 W)	~29h
Hair dryer (1800 W)	~60 min

Outdoor & workshop	Runtime
LED lighting (10 W)	~174h
Water pump (60 W)	~29h
E-scooter (charging) (100 W)	~17h
E-bike (charging) (150 W)	~12h

Your device: → ~35h of runtime

Rough estimate: real consumption varies, and very power-hungry appliances (heating elements) must stay below the output power.

What is this power station best for?

Home & Power cuts Ideal

With 2048 Wh and 2400 W, the Delta 3 Max secures a home's essentials during an outage: fridge, freezer, router, lighting, pump and small kitchen appliances run on its power, and its 4800 W surge absorbs motor start-up peaks. Its UPS function switches over in under 10 ms for an invisible transition that protects computers and sensitive gear, and its 2048 Wh cover the essentials for a good part of the day, enough for most outages. Its 0-80% recharge in 51 minutes tops it up fast, and its solar input up to 500 W makes it a sun-rechargeable reserve. New-generation LiFePO4 cells (4000 cycles) and a 5-year warranty make it a powerful, quiet and durable home backup, at a gentler price than the Max Plus version.
Motorhome & Van life Ideal

Powerful and quick to recharge, the Delta 3 Max makes a motorhome feel almost like home: its 2048 Wh cover fridge, electric cooking, an auxiliary water heater and comfort over several days, and its 2400 W handle the vast majority of onboard appliances. Its solar input up to 500 W tops it up at a stopover on a sunny day, and its 0-80% recharge in 51 minutes is valuable at a service area. Its quiet operation (25 dB) preserves the calm of nights aboard. At 20.3 kg, it suits vehicles with a dedicated spot rather than the most compact vans, but offers a comfortable energy reserve for long self-sufficient trips.
Job site & Tools Suitable

On an off-grid worksite, the Delta 3 Max delivers solid power: its 2400 W (4800 W surge) start and run most power tools, drill, jigsaw, sander or a small compressor, and its four outlets feed several stations. Its 2048 Wh cover a good working day, and its solar input up to 500 W recharges on site. Its pure sine wave protects the machines' electronics, and its quiet operation (25 dB) is welcome indoors. For the most demanding tools above 2400 W continuous, the Max Plus version (3000 W) will be more comfortable.
Off-grid & Solar Suitable

Solar-compatible (up to 500 W input, single MPPT), the Delta 3 Max is an affordable storage core for an off-grid location: cabin, workshop, tiny house or second home. Its 2400 W run a fridge, pump, tools and large appliances, and its LiFePO4 cells (4000 cycles) withstand years of daily cycling. In good weather, it recovers an appreciable part of its charge over the day. App control makes it easy to track solar production and consumption. As its capacity is not expandable, year-round permanent self-consumption will call for a second station or an expandable model such as the Max Plus.
Remote work Suitable

Well beyond a simple mobile desk, the Delta 3 Max powers a full workstation for days: its 2400 W run a computer, multiple screens, a printer, router and lighting, and its 2048 Wh offer a considerable margin. Its UPS function (switchover under 10 ms) shields the session from the slightest micro-outage. Its three USB-C ports charge laptops and tablets, and its quiet operation (25 dB) makes it pleasant beside the desk. It is an oversized base for classic remote work, ideal for a studio, a creative workshop or a space far from the grid.

Our team's recommendations based on the model's capacity, output power and weight.

Comparison

Around 1200 pounds, the EcoFlow Delta 3 Max compares to 2 kWh power stations, targeted by searches like "2000W power station" or "home backup battery". Here is how it stands against three references: the Anker SOLIX C2000, the Bluetti Elite 200 V2 and the EcoFlow Delta 3 Max Plus, its more powerful big sister.

Technical comparison: EcoFlow Delta 3 Max versus its main alternatives (observed data, indicative)
Criterion	EcoFlow Delta 3 Max	Anker SOLIX C2000	Bluetti Elite 200 V2	EcoFlow Delta 3 Max Plus
Capacity	2048 Wh	2048 Wh	2073 Wh	2048 Wh
AC output	2400 W (4800 W surge)	2400 W	2600 W	3000 W (6000 W surge)
Recharge 0-80%	51 min	45 min	60 min	47 min
Expandable	No	Yes (up to 4 kWh)	No	Yes (up to 10 kWh)
Observed price	≈ $1623.45	≈ $1504.29	≈ $1619.38	≈ $1894.25

In short, the Delta 3 Max is the best price/capacity ratio in the series: it offers the same 2048 Wh capacity and fast recharge as the Max Plus, for about 200 pounds less, in exchange for 600 W less continuous power (2400 versus 3000 W) and for expandability: only the Max Plus takes add-on batteries. Against the Anker SOLIX C2000, it recharges faster and switches to UPS more quickly; against the Bluetti Elite 200 V2, it recharges markedly faster. For a powerful, fast 2 kWh station without breaking the bank, the Delta 3 Max is an excellent choice, provided you do not need expansion.

Our tester's review: Christophe Delpuech

See our tester's profile

We plugged the Delta 3 Max into a desk and kitchen circuit, and it did exactly what you expect from a 2 kWh station: the UPS switchover is so fast (under 10 ms) that neither the computers nor the router flinched during our outage tests. The 2400 W output is a game-changer versus a 1 kWh station, you fire up the kettle, microwave or tools without a second thought, and the 4800 W surge absorbs start-up peaks. Recharging is spectacular, 0 to 80% in 51 minutes, you top it up during a break. Its 2048 Wh last a good part of a day for essentials, but the capacity stops there: unlike the Max Plus, the Delta 3 Max takes no add-on battery. Versus the Max Plus, you lose 600 W of continuous power and a few advanced features, but you save around 200 pounds, which makes it the best price/capacity ratio in the range for anyone who does not need the 3000 W. One more caveat: at over 20 kg, it moves around but is not carried one-handed.

In-depth review EcoFlow Delta 3 Max: our full review 4.3/5 Read our full review → Capacity and efficiency 4.4 Delivered power 4.3 Recharging 4.2 Ports and control 4.1 Build and endurance 4.4 Noise not measured

Frequently asked questions: EcoFlow Delta 3 Max 2048Wh power station

🔋 What is the difference between the Delta 3 Max and the Delta 3 Max Plus?

Both share 2048 Wh and LiFePO4 chemistry. The Delta 3 Max delivers 2400 W (4800 W surge) and the Max Plus 3000 W (6000 W surge). Crucially, only the Max Plus takes add-on batteries (up to 10 kWh) and accepts 1000 W of solar against 500 W: the Delta 3 Max has no expansion port. The Max Plus also recharges slightly faster, but costs about 200 pounds more.

🔋 Can the Delta 3 Max power a whole home?

It delivers 2400 W continuous (4800 W surge), enough to run most of a home's appliances at once. To power a full electrical panel, pair it with a transfer switch; its capacity, however, is not expandable.

🔋 Is the Delta 3 Max expandable?

No. The Delta 3 Max has no add-on battery port: its capacity stays at 2048 Wh. Only the Delta 3 Max Plus takes expansion batteries, up to 10 kWh.

🔋 How long does it take to recharge?

From the mains, it goes from 0 to 80% in just 51 minutes. It accepts several recharge methods, including solar up to 500 W (11-60 V, 13 A), alternator charger and generator.