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ECOFLOW · ECOFLOW DELTA 2 MAX
FRONT
BACK
PORTS
SCALE
IN USE
WattBunker Lab Score · 9.0 / 10
Capacity vs spec 96
Close to rated capacity in real-world testing
Recharge speed 93
Fast 0→80% on AC for its class
Inverter stability 90
Held nominal load without faults
Noise (1m) 86
Fan audible under high load
Build quality 88
Rigid chassis, ports recessed
In Stock
EcoFlow

EcoFlow DELTA 2 Max

2,048 Wh LFP unit with 2,400W of pure-sine output (X-Boost stretches resistive loads to 3,400W), 1,000W solar input, and AC + solar combined recharge to 80% in 43 minutes flat. Modular path to 6 kWh via two extra batteries. At 30 dB it's also one of the quietest 2 kWh units shipping right now.

4.7 (1,198) 4.7 out of 5 (1198 reviews)
2,048
Wh
2,400
W AC
50.7
lb
3,000
cycles
  • 2,048 Wh LFP cells, 3,000 cycles to 80% — 10-year design life
  • 2,400W pure-sine inverter, X-Boost protocol stretches resistive loads to 3,400W
  • AC + solar combined recharge: 80% in 43 minutes (1,000W solar + AC)
  • AC-only recharge: 80% in 1.1 hours, 100% in 1.3 hours
  • 1,000W solar input — full charge from sun in ~2.3 hours under ideal conditions
  • Expandable to 6 kWh with up to 2 extra DELTA 2 / DELTA Max batteries
  • 15 outlets, 30 dB noise floor, EcoFlow app, 5-year warranty

The good and the bad

✓ Pros
  • World-class recharge speed: 80% in 43 minutes when AC + solar are combined
  • 1,000W solar input is best-in-class for the 2 kWh segment — most rivals cap at 500W
  • 30 dB noise floor lets you run it overnight in a bedroom or RV without disturbing sleep
  • Modular expansion to 6 kWh via plug-and-play extra batteries — no wiring required
✕ Cons
  • 50 lb is heavy for 2 kWh — 7 lb more than the Jackery Explorer 2000 v2 with similar capacity
  • $1,899 price tag puts it well above the Anker SOLIX C2000 Gen 2 ($749 deal) for similar headline specs
  • X-Boost handling of resistive loads is software-driven; voltage sags briefly under sustained 3,400W draws
  • EcoFlow app requires account creation; a subset of buyers report sync friction on iOS
Who this is for

If this is you, you're in the right place

  • Speed-first buyer with solar

    80% in 43 min when AC + solar are combined. 1,000W solar input is best in the 2 kWh class. Daily-cycle setups refill in two hours of sun.

  • Bedroom or RV overnight charger

    30 dB noise floor — quieter than most ceiling fans. You can run it overnight without disturbing sleep.

  • Modular-scaling buyer

    Plug-and-play expansion to 6 kWh via two extra batteries. No wiring, no commissioning.

Who should skip this

If this is you, keep shopping

  • Price-sensitive buyer

    $1,899 puts it well above the Anker C2000 Gen 2 ($749 deal) for similar headline specs. Only worth it for the recharge speed and solar input edge.

  • Anyone needing 240V

    120V output only. Step up to the F3800 for split-phase loads.

Real-world runtime

How long it lasts on real loads

Estimates apply 85% inverter efficiency to the rated capacity. Real-world numbers vary with temperature, battery age, and appliance duty cycle.

Load Watts Hours Note
Energy Star refrigerator 150W 13 h
Window A/C (8,000 BTU) 800W 2.5 h
Microwave (1,000W rated) 1400W 1.4 h X-Boost handles surge cleanly
Server rack / NAS 200W 10 h silent at 30 dB; UPS-style use

Full specs

Battery

Chemistry LFP
Capacity 2,048Wh
Cycles to 80% 3,000

Output

AC continuous 2,400W
AC surge 4,800W

Input & Recharge

Solar input 1,000W max

Physical

Weight 50.7lb
Verdict
9.0
OUT OF 10 · BUY IT

EcoFlow EcoFlow DELTA 2 Max — the verdict

2,048 Wh LFP unit with 2,400W of pure-sine output (X-Boost stretches resistive loads to 3,400W), 1,000W solar input, and AC + solar combined recharge to 80% in 43 minutes flat. Modular path to 6 kWh via two extra batteries. At 30 dB it's also one of the quietest 2 kWh units shipping right now.

Check on Amazon
Versus the competition

Where it wins and loses against the alternatives

Anker
Anker SOLIX C2000 Gen 2
Price: $749 Wh: 2,048 Lab: 9/10

Anker is $1,150 cheaper at deal pricing for the same 2 kWh and similar 2,400W output. EcoFlow wins on solar input (1,000W vs 600W) and noise floor (30 dB vs 40+).

See review →
Jackery
Jackery Explorer 2000 v2
Price: $1499 Wh: 2,040 Lab: 9.2/10

Jackery is 11 lb lighter and UL1778-certified UPS. EcoFlow recharges 2.5× faster (with solar combined) and ingests 60% more solar.

See review →
Bluetti
Bluetti AC200L
Price: $899 Wh: 2,048 Lab: 8.9/10

AC200L is $1,000 cheaper and has 13 ports + native TT-30. EcoFlow wins on solar speed, noise floor, and modular expansion.

See review →

FAQ

How long does the EcoFlow DELTA 2 Max run a typical refrigerator?
A modern A++ fridge averages ~150 W. With 2048 Wh of usable battery, that's roughly 14 hours of continuous runtime before it depletes.
Is the EcoFlow EcoFlow DELTA 2 Max worth it versus competitors?
EcoFlow competes directly with EcoFlow, Bluetti and Anker in this segment. The Lab Score of 9 suggests an excellent unit at this price point. Cross-shop on /compare with your second pick.
Is it LFP or NMC?
The EcoFlow DELTA 2 Max uses LFP cells. LiFePO₄ delivers more cycles but weighs more.

Compared to alternatives