EcoFlow DELTA 3 Max Plus

Last updated: October 20, 2026

EcoFlow DELTA 3 Max Plus
3.7/5#23 of 30 in large power stations
3.7

A 2kWh home-backup station with enough output for most household circuits and room to expand to 10 kWh. A good fit for buyers who want to start mid-size and grow later.

  • 2,048 WhCapacity
  • 3,000 WAC output
  • 48.7 lbWeight
  • LiFePO4Battery
  • $0.59Price / Wh
Check price at Amazon$1,199Check price at EcoFlow$1,199

Price checked October 20, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros
  • 3000W continuous output runs a space heater, microwave or window AC on one outlet
  • Expands from 2 to 10 kWh with extra batteries, so it can grow into a home-backup system
  • 1000W of solar input across two ports refills it in a few sunny hours
  • Anderson and 12V car outputs run fridges and other 12V gear directly
  • Very quiet at moderate household loads
Cons
  • Heavy at about 49 lb, more a roll-around than a carry-around unit
  • Only four AC outlets for a 3000W station
  • Lost about a fifth of its rated capacity in independent testing

How it scores

The rating comes from 8 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.

Independent capacity tests

Usable energy delivered from a full charge through the AC outlets, as measured by independent reviewers. Inverter losses mean no station delivers its full rated capacity.

Tested byUsable AC energyOf ratedConditions
StorageReview1,640 Wh80%Full 100%-to-0% AC discharge; load not specified. Recharge took 2.33 kWh from the wall. Measured UPS switchover: 8 ms.

Specifications

Battery
Rated capacity2,048 Wh
Tested usable capacity1,640 Wh (80%)
ChemistryLiFePO4
ExpandableYes, up to 10,000 Wh
Output
AC output3,000 W (6,000 W surge)
Boost mode (resistive loads)3,800 W
AC outlets4 total
120V 20A outlets (NEMA 5-20R)4
USB-C ports3 (up to 140 W each)
USB-A ports1
12 V car outletYes
DC5521 ports0
UPS / pass-throughYes (10 ms switchover)
Charging
AC charging1,800 W
Max solar input1,000 W
Solar input voltage11-60V, 18A max (2 XT60i inputs)
Build
Weight48.7 lb (22.1 kg)
Dimensions19.4 x 9.5 x 12.0 in
AppEcoFlow app (Wi-Fi and Bluetooth)
Warranty5 years

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