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

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.
Key features
- 6 AC outlets, 2400 W total output, 4800 W surge
- X-Boost raises max device power to 3400 W
- AC charging at 1800 W (X-Stream Fast Charge, 15 A)
- Solar input 11-60 V, 15 A: 500 W single port, 1000 W dual port
- Car charging supports 12 V/24 V batteries at 8 A
- 2 USB-C ports at 100 W max each, 2 USB-A ports at 12 W max each, and a 126 W car port
- AC Always-on mode keeps the power button active during outages
- Low battery notification and full control via the EcoFlow app over Wi-Fi and Bluetooth
What it is for
- Home backup
- RV life
- Outdoor adventures
- DIY projects
Specifications
| Capacity | 2048 Wh |
|---|---|
| Continuous output | 2400 W |
| Peak / surge | 4800 W |
| Solar input | 1000 W |
| Expandable | Yes |
| Battery chemistry | LiFePO4 |
| Cycle life | 3000 cycles |
| Weight | 23 kg (50.7 lb) |
| Dimensions | 49.7 × 24.2 × 30.5 cm (19.6 × 9.5 × 12.0 in) |
| Warranty | 5 years |
From the EcoFlow page. Values the manufacturer does not publish are left out.
What is in the box
- DELTA 2 Max
- User Manual & Warranty card
- AC Charging Cable
How long it runs common appliances
| Appliance | Watts | Runs? | Hours |
|---|---|---|---|
| Refrigerator (with freezer) | 120 W (600 start) | yes | 39 h |
| Chest freezer | 100 W (500 start) | yes | 54 h |
| CPAP (no humidifier) | 35 W (40 start) | yes | 46 h |
| Gas boiler (pump + controls) | 120 W (300 start) | yes | 27 h |
| Wi-Fi router + modem/ONU | 12 W | yes | 5.6 days |
| Starlink (standard dish) | 60 W (100 start) | yes | 27 h |
| TV 50" | 75 W | yes | 22 h |
| Sump pump 1/2 HP | 920 W (2150 start) | yes | 1.8 h |
| Well pump 1/2 HP | 880 W (2000 start) | yes | 1.8 h |
| Space heater 1500 W | 1500 W | yes | 1.5 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
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All 25 comparisons
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- DELTA 2 Max vs Zendure SuperBase Pro 2000
- DELTA 2 Max vs Bluetti AC200PL
- DELTA 2 Max vs Oukitel P2001 Plus
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- DELTA 2 Max vs Oukitel BP3000
- DELTA 2 Max vs Grecell 2400W Portable Power Station
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On our lists
Connection and wiring
Follow the diagrams in the EcoFlow manual.
Open the EcoFlow manual (PDF) →
Error codes and troubleshooting
| Code | Meaning | What to do | Manual page |
|---|---|---|---|
| High Temperature Charging Protection | The battery is too hot, so charging is stopped to protect it. | Charging resumes automatically once the battery cools down. | 13 |
| High Temperature Discharging Protection | The 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 Protection | The 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 Protection | The 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 Protection | AC 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 Protection | AC 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.