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EcoFlow DELTA 3 Ultra

Portable power station · Home Backup fit profile

Excellent fit

EcoFlow DELTA 3 Ultra is well suited to home backup. Its clearest buyer advantage is useful stored energy.

Capacity3,072 Wh
AC output3,600 W
Surge7,200 W
Solar input800 W
Weight72.1 lb
ExpansionExpandable
Evidence
Manufacturer-controlled
Model
DELTA 3 Ultra
Reviewed
2026-08-28
EcoFlow DELTA 3 Ultra product image

Historical context

30-day average
$1,535.22
90-day average
$1,581.63
180-day average
$1,506.86
Historical low
$999.00
Historical high
$2,499.00

Prices that include shipping may not compare directly with item-only prices.

At a glance

Bottom Line

EcoFlow DELTA 3 Ultra is well suited to home backup. Its clearest buyer advantage is useful stored energy.

Strengths

Practical advantages

  • Battery chemistryUses LFP battery chemistry.
  • Motor-start headroomAllows brief peaks up to 7200 W for compatible starting loads.
  • Short-outage continuitySupports UPS/EPS operation for compatible connected equipment.

Tradeoffs

Supported limitations

No notable limits for this use are supported by the available facts.

Evidence gaps

What remains unknown

No key evidence gaps for this use.

Key facts

Core specifications

CAPACITY

3072 Wh

Rated capacity

Continuous

3600 W

Continuous

SURGE

7200 W

Peak capability

SOLAR INPUT

800 W

Maximum

WEIGHT

72.1 lb

BATTERY

LFP

Recharge paths

Charging specifications

SOLAR INPUT

800 W

Maximum

Power and connections

Output specifications

AC OUTPUT

3600 W

Continuous

SURGE

7200 W

Peak capability per manufacturer

AC OUTLETS

5 ports

AC Outlet

DC OUTPUTS

1 port

Cigarette Lighter

Group maximum: 126 W

USB-C

1 port

USB-C

Group maximum: 140 W

USB-C

2 ports

USB-C

Group maximum: 45 W

Expandability

Capacity beyond the base

EXPANSION

Yes

Up to 11000 Wh

Supports external batteries

Portability

Size the move

PRODUCT WEIGHT

72.1 lb

Manufacturer-published weight

UPS / EPS

Transfer behavior

UPS / EPS

Supported

10 ms

For compatible connected equipment

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