
EcoFlow · Documentary analysis
EcoFlow DELTA 2 Max
Main strength
Its 2,048 Wh double DELTA 2's nominal capacity, with 2,400 W continuous and 23 kg. It is the higher-capacity alternative in this selection for checking multi-day needs.
Last documentary review
Official sources reviewed: 2026-10-08. EU, 230 V We have not carried out physical tests.
Who it may suit
Consider it when your nominal calculation exceeds approximately 1 kWh and fits within 2,048 Wh without relying on uncertain charging. Its two solar inputs allow investigation of up to 1,000 W total under each input's limits.
When to look elsewhere
If calculated needs exceed 2,048 nominal Wh, you need more capacity, demonstrable charging or reduced consumption. For a low-demand day, compare the weight you could avoid with a smaller station.
Main trade-off
Its 23 kg require transport and space planning. Twice the energy and greater AC power do not double the vehicle socket limit: DC supply still needs a separate check.
What we know
Fields with documentation: nominal capacity, continuous AC power, declared peak (duration pending), maximum solar input, weight, dimensions, chemistry, declared cycles, connection features, DC/USB output limits, AC sockets, number of USB ports, EPS/UPS transfer time, 0–80% recharge, solar input conditions. Each field retains its limits; this does not verify the whole model.
View sources and variant ↓What needs checking
Your setup still needs checking: startup, cables, ports and simultaneous use, operating conditions and solar installation. The offer, package contents, final price and availability are checked separately.
Next step: check your consumption and appliance connections; nominal capacity alone does not establish compatibility.
- Nominal capacity
- 2048 Wh
- Continuous AC power
- 2400 W
- Weight
- 23 kg
- Maximum solar input
- 1000 W
Documentary criteria, not a physical test or certified compatibility with your appliances.
How we assess options →Connections: documented ports, voltages and limits ↓
Documented limits of the reviewed variant. Port power does not guarantee your appliance's protocol, cable or start-up. Shared groups limit the sum of loads.
1 × 12.6 V vehicle socket · up to 126 W per port
12.6 V. Up to 10 A.
Documentary limits reviewed: 2026-10-08; these are not physical tests.
European manual for EcoFlow DELTA 2 Max · 12.6 V vehicle socket ↗2 × 12.6 V DC5521 · up to 38 W per port
12.6 V. Up to 3 A.
Documentary limits reviewed: 2026-10-08; these are not physical tests.
European manual for EcoFlow DELTA 2 Max · 12.6 V DC5521 ↗2 × 100 W USB-C PD · up to 100 W per port
5 / 9 / 12 / 15 / 20 V. Up to 5 A.
USB-PD profile table remains undocumented; a port's maximum does not establish that power at every voltage.
Documentary limits reviewed: 2026-10-08; these are not physical tests.
European manual for EcoFlow DELTA 2 Max · 100 W USB-C PD ↗2 × 12 W USB-A · up to 12 W per port
5 V. Up to 2.4 A.
Documentary limits reviewed: 2026-10-08; these are not physical tests.
European manual for EcoFlow DELTA 2 Max · 12 W USB-A ↗2 × 18 W USB-A fast charging · up to 18 W per port
5 / 9 / 12 V. Up to 2.4 A.
Documentary limits reviewed: 2026-10-08; these are not physical tests.
European manual for EcoFlow DELTA 2 Max · 18 W USB-A fast charging ↗
Charging and power: conditions that change the decision ↓
- Mains recharge of the whole battery
- Charging verification pending. This is a manufacturer claim under its stated conditions, not our own measurement. It is not the time to replenish your daily consumption.
- Solar input
- Two independent MPPT inputs: 11–60 V, 15 A and 500 W per input; 1,000 W combined. Suitable panels and solar cable are checked separately; do not connect above 60 V open-circuit voltage. Peak sun hours describe equivalent energy, not clock hours at constant maximum power.
- Start-up and special modes
- Declared peak: 4800 W; duration unverified. Special modes may reduce voltage; they do not replace continuous power.X-Boost: appliance limit of3100W, subject to compatibility.Compatibility mode for certain appliances, not continuous power or start-up peak; excludes strict voltage requirements. Check the specific appliance.
- Power supply continuity
- EPS: up to 30 ms; check your load. An EPS/UPS function with interruption does not establish medical continuity or compatibility with all sensitive equipment.
What do watts and watt-hours represent?
The W describe power at a given moment; Whdescribe accumulated energy. Multiplying an appliance's power by its usage hours estimates energy: 100 W for 2 hours is 200 Wh consumed by the appliance. Losses mean the battery must supply more.
Phone or tablet: 15 W × 2 h = 30 Wh
Illustrative load; check charger and USB protocol.
Router: 12 W × 8 h = 96 Wh
Hypothetical constant power; confirm the power supply.
LED light: 10 W × 4 h = 40 Wh
Example of one light; add the others if used simultaneously.
Compressor fridge: 45 W × 4 h = 180 Wh
Four hours of compressor operation, not four clock hours or measured consumption.
Illustrative power and hours, not measurements of your appliances or verified runtime of this station. These Wh represent appliance consumption before losses. Check each appliance's port, voltage, protocol and start-up requirements.
Formulas and assumptions for the AC example ↓
In the example of 100 W for 2 hours, the battery would supply around 265 Wh: AC consumption ÷ 85% efficiency, plus 15 illustrative inverter watts over those two hours.With90% of the2048documented nominal Wh available, such a constant load would give approximately13.9 hours. Formula: capacity ×0.9 ÷ (100 ÷ 0.85 + 15).
Battery margin, losses and inverter consumption are planning assumptions, not measurements of this model. Temperature, ageing and variable consumption may change the result. Do not apply this AC example directly to USB or DC.
400 W of panels: generation and solar example ↓
This is nominal generation power. With 4 peak sun hours and 75% assumed solar efficiency, the example is 400 W × 4 PSH × 0.75 = 1200 Wh. This is energy equivalent to six uses of the 100 W, two-hour example before output losses, not six guaranteed uses.
ForEcoFlow DELTA 2 Max, also applying the documented solar maximum limits the example's power to400W and its indicative calculation to1200Wh.Four PSH do not mean four clock hours at a constant 400 W. Voltage, current, connectors, accessories and actual conditions must be checked; clouds or an incompatible input will change the energy. This figure is not a whole-battery recharge time either.
Enter your appliances and days to replace these examples with your own case.
Calculate my needs →Sources, documented fields and review date ↓
Model: EFD350 DELTA 2 Max 2048 Wh. Region: EU, 230 V. Review date: 2026-10-08. Established fields: nominal capacity, continuous AC power, declared peak (duration pending), maximum solar input, weight, dimensions, chemistry, declared cycles, connection features, DC/USB output limits, AC sockets, number of USB ports, EPS/UPS transfer time, 0–80% recharge, solar input conditions. This review does not establish price, stock, ASIN, warranty applicable to your purchase or physical testing.
Specific outstanding checks.
- Confirm combined limit of vehicle socket and DC5521: do not add individual maxima without documentation.
- Check appliance voltage, connector and start-up; 2,048 Wh capacity does not verify ports.
Contents of this offer: verification pending. Do not assume panels are included. Check the retailer’s variant; maximum solar input does not describe package contents.
Check variant and store conditions ↗
Price awaiting verification
Shop awaiting verification · EcoFlow DELTA 2 Max: confirm the European variant and package contents · Pending
Verification pending: European variant price, shop, date, taxes, delivery and terms. The old catalogue reference is not used for sorting, budget filters or €/Wh calculations.
Price and conditions may change. Confirm the European model, included accessories, availability and warranty. Linked offers are observations of new items in the European variant checked within the last seven days; they do not guarantee condition, seller, price or availability when you open Amazon. Review those conditions before buying. Commercial attribution remains unverified.
A new-condition offer for this model still needs checking.