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EcoFlow DELTA Pro 3 + Expansion Battery Solar Kits EcoFlow DELTA Pro 3 + 1* DELTA Pro 3 Extra Battery

EcoFlow DELTA Pro 3 + Expansion Battery

BY: EcoFlow | SKU: DP3-EB Availability: In Stock
$6,298.00
$3,599.00
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EcoFlow DELTA Pro 3 + Expansion Battery

The EcoFlow DELTA Pro 3 + Expansion Battery system is a high-capacity, ultra-reliable power solution built for home backup, off-grid applications, and professional use. With scalable energy storage and seamless integration, this bundle supports either one or two DELTA Pro 3 Extra Batteries, delivering massive power and runtime flexibility. Perfect for critical loads, appliances, and heavy-duty devices, this system brings peace of mind wherever portable energy is needed.

EcoFlow DELTA Pro 3 + Expansion Battery Features

Expandable Battery Capacity

Start with the base DELTA Pro 3 (4096Wh) and expand with 1 or 2 Extra Batteries, reaching up to 12.3kWh of total capacity.

Unmatched Output Power

Delivers 4000W continuous AC output (8000W surge) for large appliances, tools, and home backup circuits.

Plug-and-Play Design

Simple connection and automatic battery balancing between the main unit and expansion battery modules.

Ultra-Fast Charging

Recharge from 0–100% in under 2 hours using AC, solar, or EcoFlow Dual Fuel Generators.

Home Integration Ready

Pairs seamlessly with EcoFlow’s Smart Home Panel 2 for hands-free home backup when the grid goes down.

Smart App Control

Monitor, schedule, and control your system from anywhere using the EcoFlow app with real-time data.

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EcoFlow DELTA Pro 3 + Expansion Battery Applications

  • Home Backup Power – Keeps refrigerators, medical devices, lights, and Wi-Fi running during outages.
  • Jobsite and Power Tools – Delivers high-wattage output for saws, compressors, and electric tools.
  • Off-Grid Cabins – Ideal for powering appliances, heating, water systems, and entertainment.
  • EV Charging on the Go – Capable of Level 2 EV charging, perfect for road trips and emergency top-ups.
  • Mobile Living – Excellent for RVs, campers, and mobile studios that need reliable, quiet power.
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What's Included

Everything you need is included with your product.

  • EcoFlow DELTA Pro 3
  • EcoFlow DELTA Pro 3 Extra Battery
  • AC charging cable
  • Car charging cable
  • Solar Charging Cable (if applicable)
  • User Manual
  • Warranty Card
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EcoFlow DELTA Pro 3 Portable Power Station Specifications

Category Specifications
Color Galactic Silver
Capacity 4096Wh
Net Weight 51.5 kg | 113.5 lbs
Dimensions 695.5 x 341 x 410 mm | 27.3 x 13.4 x 16.1 in
WiFi 2.4GHz/Bluetooth/CAN Supported
Smart Home Panel 2 Connections Maximum 3 DELTA Pro 3
LCD Screen Yes
App Control Supported
Warranty 5 Years
Noise Level 35dB (under 2kW，25°C)
Wheels & Tie Rod Supported
Operating Temperature Discharging temperature: -10°C to 45°C | 14° to 113°F, Charging temperature: 0°C to 45°C | 32° to 113°F, Storage temperature: -10°C to 45°C | 14° to 113°F

Output Specifications

Category Specifications
Number of AC Outlets 7
Maximum Continuous Output 4000W
Maximum Surge Output 8000W, 400ms
Optional Extended Range ~8KW with 2 x DELTA Pro 3 + 50amp Hub
Split Phase Supported
Voltage 120V/240V
X-Boost 6000W Maximum
X-Fusion 120V/1800W AC input, 120V/240V 4000W maximum AC output
X-Stream Supported
EPS/UPS 10ms, UPS
AC Power IN/OUT Port (Discharge Only) 120/240V~16.7A 60Hz
Single Phase Low Voltage Socket 4 x NEMA 5-20R, 120V/20A, 1 x TT-30, 120V/30A, Total 4000W
High Voltage Socket 1 x L14-30, 120V/240V/16.7A, 1 x NEMA 6-20R, 240V/16.7A, Total 4000W

DC Output Specifications

Category Specifications
USB-C 2 x USB-C 5/9/12/15/20V 5A 100W Max
USB-A Fast Charging 2 x USB-A, 5V 2.4A 9V 2A 12V 1.5A 18W Max
Car Power Output Not Supported
12V DC Output 12.6V/30A 378W Total, DC5521, 1X, 5A Max, Anderson, 1X, 30A Max
Remote Control Port 1

Input Specifications

Category Specifications
Utility Power Charging C20 port, 100-240V~15A 50/60HZ | 1800W Max @ 120V | 3600W Max @ 240V | Bypass Mode: 100-120V~15A 50/60HZ
Adjustable AC Charging Speed Supported
EV Charger Charging (AC Power IN/OUT Port) AC Power IN/OUT Port | 4000W Max, 120/240V~20A 50/60Hz
Solar Input 2600W Max, 2 Ports: High PV: 30-150V/15A, 1600W Max, Connect this port to solar panels using an EcoFlow Solar to XT60 Charging Cable | Low PV: 11-60V/20A, 1000W Max, Connect this port to solar panels using an EcoFlow Solar XT60i Charging Cable
Car Input 12V 8A Maximum | 48V 20A Maximum
Generator Input 3200W Maximum w/EcoFlow SG 4000 Dual Fuel Smart Generator
0-80% Charge Time 50 minutes (1C Charging)
Bond Charge Input (with 1 x Extra Battery) 7000W Maximum

Certifications & Protection

Category Specifications
Certifications UL, CE, FCC, RoHS, TELEC | New: UL9540+UL9540A
AC Surge Anti-Surge, Enhanced Surge Protection
Battery Protection Over Voltage Protection , Overload Protection, Over Temperature Protection, Short Circuit Protection, Low Temperature Protection, Low Voltage Protection, Overcurrent Protection
Battery Life Protection Supported

Delta Pro 3 Battery Specifications

Category Specifications
Battery Type LFP
Battery Life Cycle 4000 cycles to 80%
Extra Battery Port 2 x Ports | Support DP EB, DP3 EB
IP Rating For Battery Pack IP65
CTC Craftsmanship Yes

Frequently-Asked Questions

Can I charge the DELTA Pro 3 and the Extra Batteries at the same time?

Yes. The system automatically balances and charges the expansion batteries through the DELTA Pro 3 main unit.

What’s the maximum output with two extra batteries?

The output power remains at 4000W continuous, but energy capacity increases to 12.3kWh, greatly extending runtime.

Does it support solar charging for the whole system?

Absolutely. The system supports up to 4000W solar input, which charges both the base and the extra batteries.

Can I use the extra batteries without the DELTA Pro 3?

No. The extra batteries are designed to work only when connected to the main DELTA Pro 3 unit.

Is this compatible with the EcoFlow Smart Home Panel 2?

Yes. You can integrate this bundle with Smart Home Panel 2 for seamless whole-home backup.