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EcoFlow DELTA 2 Max

Power station · DELTA 2. Specs from the manufacturer page (checked ).

EcoFlow DELTA 2 Max
Photo: EcoFlow

The EcoFlow DELTA 2 Max is a 2048 Wh portable power station with 2400 W total AC output from 6 outlets (4800 W surge). It uses a LiFePO4 battery rated for 3000 cycles to 80+% capacity and supports up to two extra batteries.

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Capacity
2048Wh
Continuous
2400W
Peak / surge
4800W
Solar input
1000W
Chemistry
LiFePO4
Cycles
3000
Expandable
Yes
Weight
23kg
Warranty
5yr

Key features

What it is for

Specifications

Capacity2048 Wh
Continuous output2400 W
Peak / surge4800 W
Solar input1000 W
ExpandableYes
Battery chemistryLiFePO4
Cycle life3000 cycles
Weight23 kg (50.7 lb)
Dimensions49.7 × 24.2 × 30.5 cm (19.6 × 9.5 × 12.0 in)
Warranty5 years

From the EcoFlow page. Values the manufacturer does not publish are left out.

What is in the box

How long it runs common appliances

ApplianceWattsRuns?Hours
Refrigerator (with freezer)120 W (600 start)yes39 h
Chest freezer100 W (500 start)yes54 h
CPAP (no humidifier)35 W (40 start)yes46 h
Gas boiler (pump + controls)120 W (300 start)yes27 h
Wi-Fi router + modem/ONU12 Wyes5.6 days
Starlink (standard dish)60 W (100 start)yes27 h
TV 50"75 Wyes22 h
Sump pump 1/2 HP920 W (2150 start)yes1.8 h
Well pump 1/2 HP880 W (2000 start)yes1.8 h
Space heater 1500 W1500 Wyes1.5 h

Assumes 88 % inverter efficiency, 90 % usable capacity and typical duty cycles. Build your own list in the calculator.

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EcoFlow DELTA 2 Max comparisons

All 25 comparisons

On our lists

Best power stations for a CPAPBest power stations for a refrigeratorBest power stations for a well pumpBest power stations for StarlinkBest LiFePO4 power stationsBest expandable power stationsBest power stations for solar charging

All EcoFlow models →

Connection and wiring

Follow the diagrams in the EcoFlow manual.

Open the EcoFlow manual (PDF) →

Error codes and troubleshooting

CodeMeaningWhat to doManual page
High Temperature Charging ProtectionThe battery is too hot, so charging is stopped to protect it.Charging resumes automatically once the battery cools down.13
High Temperature Discharging ProtectionThe battery is too hot, so power output is stopped to protect it.The power supply resumes automatically once the battery cools down.13
Low Temperature Charging ProtectionThe battery is too cold, so charging is stopped to protect it.Charging resumes automatically once battery temperature rises above 5°C (41°F).13
Low Temperature Discharging ProtectionThe battery is too cold, so power output is stopped to protect it.The power supply resumes automatically once battery temperature rises above -12°C (10°F).13
AC High Temperature ProtectionAC output is protected because the product is overheating. The indicator flashes.Check whether the fan inlet and outlet are blocked. If not, normal operation resumes automatically after the product temperature drops.14
AC Low Temperature ProtectionAC output is protected because the product is operating at too low a temperature. The indicator flashes.Use the product at optimum environmental temperatures. Normal operation resumes automatically.14

6 of 18 codes. From the EcoFlow manual. All 18 DELTA 2 Max / DELTA Pro / DELTA 2 codes →

FAQ

How long will the EcoFlow DELTA 2 Max run a refrigerator?

About 39 hours for a typical 120 W refrigerator that runs 35 % of the time, after inverter and depth-of-discharge losses.

Can the EcoFlow DELTA 2 Max start a sump pump or well pump?

Starting surge matters more than running watts: this unit is rated 4800 W peak. That covers a typical 1/2 HP sump pump (about 2150 W to start). Use the calculator with your exact pump.

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