EcoFlow DELTA 2 Max + DELTA 2 Max Smart Extra Battery - D2M-US-EB
Now Available With DELTA 2 Max Smart Extra Battery - Double Or Triple The Runtime Of Your DELTA 2 Max With This Smart Extra Battery!
Features
Fume-free, Quiet, Zero Maintenance
World's Fastest Recharging Methods
Power up to 99% of Appliances
Lightest 2400W LFP Solar Generator on the Market
LFP Battery: 3000 cycles, 6× more than the industry average. Use every day for 10 years
Large Expandable Capacity from 2048Wh to 6144Wh
Plug and play home backup power
Quiet Recharging
Customized In-app Energy Management
Ultra-Fast Home Backup Switchover Speed
Multiple Levels of Protection for Safety and Reliability
Compatible with EcoFlow Ecosystem Products
Power Through Extended Blackouts
5-Year Warranty
EcoFlow DELTA 2 Max Smart Extra Battery Features:
Convenient recharging DELTA 2 Max and its Extra Battery charge and discharge in unison. Whether you’re recharging DELTA 2 Max from solar panels, AC outlets, a vehicle, or our Smart Generator, the DELTA 2 Max Extra Battery will recharge alongside.
Independent in emergencies The extra battery even recharges directly from EcoFlow’s Smart Generator without DELTA 2 Max. That’s more recharging options to fit any situation.
LCD screen Get all the info on battery percent, time until full, time until empty, and more on the DELTA 2 Max Extra Battery LCD screen. Check the battery’s status anywhere on the EcoFlow app.
No fumes, No noise, No maintenance.
Fume-free: since power stations don't burn fuel, they don't produce emissions or fumes, making them a clean and eco-friendly alternative to gas generators.
Quiet: without internal noisy combustion engines, DELTA 2 Max is extremely quiet, even when charging.
Maintenance-free: There's no fuel to refill, no filters or fluids to change or mechanical parts that need constant maintenance.
World’s Fastest Recharging Methods
Industry's Fastest AC Recharging: Get an input of up to 1800W with X-Stream technology. Charge 0-80% in 68 min (1.1 hour)
Industry's Fastest AC + Solar Recharging: Charge to 80% in 43 min. Fully charge in about 1 hour.
Harness Clean Solar Energy For Fast Charging:
Fully charge with up to 1000W solar input in only 2.3 hours.
Power 99% of Essentials Industry-leading X-Boost Technology
A 2400W output powers up to 15 devices at once. Run some appliances with up to 3400W using X-Boost mode. That means during a power outage or blackout, you can continue to run your fridge, microwave, dryer, and more. Ideal power generator for backup power.
LFP Battery: 3000 cycles, 6× more than the industry average, for up to 10 years of everyday use
Premium LFP cells for long-lasting battery life. Using the same chemical makeup as Tesla batteries, DELTA 2 Max gives you 3000 complete cycles till it's down to 80% capacity. That's 6× more than the industry average of 500.
10 years of everyday use. If used once a day, it can be safely used for about 10 years.
Advanced BMS protection. Self-regulates voltage, current, and temperature. Charge safely with comprehensive protection.
Safe and stable for high performance even in warm temperatures.
Customized In-app Energy Management
Save more on electricity bills: Prioritize the use of solar energy via the EcoFlow app when using AC + solar dual charging. Starts and ends at any time you want to save energy bills by avoiding peak rates.
Experience peace of mind during power outages AC Always On Mode: power button stays on, even during a power outage or after the grid power is back, keeping appliances powered. Adjust energy sources to fit your needs: backup power reserve or energy savings.
Lower battery power reminder: Get a notification via the app when the battery hits a low.
Ultra-fast home backup switchover - <30ms EPS auto-switch
When a blackout occurs, the power station automatically switches to the battery supply mode in less than 30ms. It ensures a constant power supply to your devices.
Multiple levels of protection for safe and reliable use
Made from safe, robust materials and a sturdy one-piece design. It can withstand severe knocks and falls. Each port is reinforced to be resistant to wear and tear.
The modular electronic components fit together seamlessly and can be easily removed from the unit for maintenance. All wires are copper-plated and polymer-wrapped for enhanced cooling, safety, and strength.
Rubber anti-slip base.
A shell of the highest fire-resistant rating, 5VA. Comes with a strengthened handle.
The EcoFlow service team provides a 5 year warranty. Experience absolute peace of mind.
Compatible with EcoFlow ecosystem products
DELTA 2 Max is compatible with EcoFlow’s product ecosystem, providing a one-stop power solution for users. With the most comprehensive product ecosystem in the industry, power a new world using DELTA 2 Max, Extra Batteries, Portable Solar Panels, WAVE and WAVE 2 Portable Air Conditioners, Smart Generator and so much more…
SpecificationsAdditional Information
Product Name
EcoFlow DELTA 2 Max
Capacity
Expandable from 2048Wh to 6144Wh
AC Input
US
X-Stream 1800W, 15A
Solar Input
1000W Max, 11V-60V, 15A ; 500W per port
AC Output (×6)
US
2400W (Surge 4800W), X-Boost 3400W
120V~ 50/60Hz
DC Output
2×USB-A / 2×USB-A Fast Charging / 2×USB-C (100W) / 1×Car Power Outlet / 2×DC5521
Balanced Capacity & Output Base unit offers 2,048 Wh LFP battery with 2,400 W continuous AC output (up to ~4,800 W surge). Adding the Smart Extra Battery increases runtime for critical loads.
Expandable up to ~6 kWh One extra battery brings total capacity to ~4,096 Wh; two extras give ~6,144 Wh — ideal for extended backup or off-grid use.
Fast Recharge & Solar Compatible Supports up to ~1,000 W solar input plus AC charging, enabling rapid recharge under optimal conditions.
Durable LFP Battery Lithium Iron Phosphate cells rated for ~3,000 cycles to 80% capacity, ensuring long life and thermal stability.
Smart Control & Monitoring App-based WiFi/Bluetooth monitoring allows live metrics, energy management, and output control.
Versatile Applications Perfect for emergency home backup (fridge, lights, routers), outdoor/mobile use (RV, camping), and powering tools or appliances.
Q&A
Q: What is the EcoFlow DELTA 2 Max + Smart Extra Battery bundle? A: A complete power solution combining the DELTA 2 Max portable power station with a Smart Extra Battery, providing extended runtime for home, work, and outdoor use.
Q: What is the total energy capacity? A: Together, they offer up to 4 kWh of energy, doubling the DELTA 2 Max’s standard capacity for long-duration operation of appliances, electronics, and tools.
Q: What are the main benefits? A: Extended runtime, modular expandability, fast AC/DC/USB outputs, solar compatibility, and safe battery management, ideal for off-grid, emergency, or high-demand scenarios.
Q: Is the extra battery compatible with other devices? A: It is designed specifically for DELTA 2 Max units, integrating seamlessly for extended performance.
Q: Where is it best used? A: Perfect for home backup, RVs, camping, outdoor events, and emergency preparedness, offering reliable, clean, and portable energy wherever needed.
Maintenance Tips
Regular Charging: Keep both batteries between 20%–80% charged to maximize lifespan; avoid prolonged full discharges.
Store in Safe Conditions: Store in a cool, dry, and ventilated area (15°C–25°C / 59°F–77°F), away from direct sunlight, heat, or moisture.
Clean Connections: Inspect input/output ports and battery terminals regularly; wipe with a soft, dry cloth to remove dust or debris.
Firmware Updates: Keep both units updated via the EcoFlow app to maintain optimal performance and safety features.
Monitor Physical Condition: Check for swelling, leaks, or external damage; discontinue use if any issues are detected.
Safe Handling: Follow manufacturer guidelines when connecting, transporting, or storing batteries and the inverter to prevent damage or short circuits.
Protect from Environment: Avoid extreme temperatures, water exposure, and high humidity to ensure efficiency and battery longevity.
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