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EcoFlow DELTA 3 Ultra vs Pecron E3600LFP

EcoFlow DELTA 3 Ultra — front view

EcoFlow DELTA 3 Ultra

61BatteryRank score · Balanced
Check price on Amazon
Decision readout
Better station

These two match on everything except recharge speed, and that goes to Pecron E3600LFP (2,400 W vs 800 W solar input).

  • chargingPecron E3600LFP+19
    2,400 W vs 800 W solar input
Pecron E3600LFP — front view

Pecron E3600LFP

63BatteryRank score · Balanced
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What changes the decision

By the BatteryRank Engineering Team

01 · Score evidence

Score breakdown

61
EcoFlow DELTA 3 Ultra
Overall
63
Pecron E3600LFP
62
POWER
EcoFlow DELTA 3 Ultra +5
57

Battery-side usable capacity and how much you can run at once.

63
TRUST
Pecron E3600LFP +2
65

Owner reputation, safety record, warranty, and build durability.

59
CHARGING
Pecron E3600LFP +19
78

Wall and solar recharge speed.

55
LIVABILITY
EcoFlow DELTA 3 Ultra +1
54

Lightweight, portable, and quiet enough to live with.

Computed from sourced data with a published, price-independent formula. Scores are relative to each model's size class.

02 · Usable energy

Capacity truth

The watt-hours on the box aren't what reaches your devices. Same scale, both units.

EcoFlow DELTA 3 Ultra
Rated (on the box)
3,072 Wh. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04

The marketing number — total cell capacity.

AC delivered (est.)
2,611 Wh. Show sourceestimated sourceestimate = battery-side usable capacity × 85% inverter efficiency

What reaches an AC outlet — about 15% is lost turning battery power into household AC. How we estimate.

Pecron E3600LFP
Rated (on the box)
3,072 Wh. Show sourceclaimed sourcecdn.shopify.com ↗2026-07-27

The marketing number — total cell capacity.

AC delivered (est.)
2,611 Wh. Show sourceestimated sourceestimate = battery-side usable capacity × 85% inverter efficiency

What reaches an AC outlet — about 15% is lost turning battery power into household AC. How we estimate.

03 · Same assumptions

Same-device runtime

Estimated runtime for the same sourced devices on EcoFlow DELTA 3 Ultra and Pecron E3600LFP
DeviceEcoFlow DELTA 3 UltraPecron E3600LFPAssumption
CPAP (humidifier off)about 36.3 nightsabout 36.3 nights9 W ·
CPAP (heated humidifier on)about 5.8 nightsabout 5.8 nights56 W ·
Refrigerator (full-size)about 41 hoursabout 41 hours180 W × 35% duty cycle ·
Wi-Fi router + modemabout 145 hoursabout 145 hours18 W ·
Laptop (65W charger)about 80 hoursabout 80 hours65 W × 50% duty cycle ·
Phone (one full charge)about 130 full chargesabout 130 full charges20 W ·

One device at a time; estimates use each station's usable AC energy. Build your own load →

04 · Sourced hardware

Key specs, side by side

Key sourced specifications for EcoFlow DELTA 3 Ultra and Pecron E3600LFP
SpecEcoFlow DELTA 3 UltraPecron E3600LFP
AC-delivered capacity
2,611 Whest.. Show sourceestimated sourceus.ecoflow.com ↗2026-07-04
2,611 Whest.. Show sourceestimated sourcecdn.shopify.com ↗2026-07-27
Continuous power output
3,600 W. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04
3,600 W. Show sourceclaimed sourcecdn.shopify.com ↗2026-07-27
Surge power output
7,200 W. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04
—
Max solar input
800 W. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04
2,400 W. Show sourceclaimed sourcecdn.shopify.com ↗2026-07-27
AC charge time (0–100%)
89 min. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04
—
Weight
32.7 kg. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04
36 kg. Show sourceclaimed sourcecdn.shopify.com ↗2026-07-27
Rated cycle life
4,000 cycles. Show sourceclaimed sourceus.ecoflow.com ↗2026-07-04
3,500 cycles. Show sourceclaimed sourcecdn.shopify.com ↗2026-07-27
Only show differences
  • Surge power output7,200 W—
  • Max solar input800 W2,400 W
  • AC charge time (0–100%)89 min—
  • Weight32.7 kg36 kg
  • Rated cycle life4,000 cycles3,500 cycles

Manufacturer figures unless marked verified or est. Tap or focus a figure to view its source. The better reading in each row is highlighted — lower wins for weight and recharge time.

Where these rank

Where to buy

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Quick answers

Is the EcoFlow DELTA 3 Ultra better than the Pecron E3600LFP?
These two match on everything except recharge speed, and that goes to Pecron E3600LFP (2,400 W vs 800 W solar input).
Which has more usable capacity, the EcoFlow DELTA 3 Ultra or Pecron E3600LFP?
Neither, in any way you would notice: 2,611 Wh against 2,611 Wh is a 0% gap, which is smaller than the swing you get from running the same load on a cold morning. Treat them as the same size and decide on output, weight, or today's price instead. Both figures are estimated AC-delivered energy, not the nameplate battery rating — the watt-hours that actually reach your devices.
Which has more AC output, the EcoFlow DELTA 3 Ultra or Pecron E3600LFP?
Neither — both are rated 3,600 W continuous, so any load one can run, the other can too. Only the EcoFlow DELTA 3 Ultra publishes a sourced surge figure (7,200 W); the Pecron E3600LFP has no sourced surge figure, so startup capability is only half-answered here — check the missing side before planning around a motor or compressor load.
How does runtime compare between the EcoFlow DELTA 3 Ultra and Pecron E3600LFP?
They run within 0% of each other on the same load — about 41.4 hours each on a refrigerator (full-size). Runtime will not separate these two; the deciding factor is somewhere else.
Which is lighter, the EcoFlow DELTA 3 Ultra or Pecron E3600LFP?
The EcoFlow DELTA 3 Ultra, by 3.3 kg (32.7 kg versus 36 kg). Both weights are manufacturer figures for the bare unit; cables and a solar panel add to whatever you actually carry.
Which model should I buy for my use case?
On the sub-scores that describe each use case: the EcoFlow DELTA 3 Ultra for home backup, camping & rv. One model leads every use case we score here, which makes this an unusually clean choice.

Keep deciding

Scores computed from sourced data · prices timestamped · tap or focus a figure to view its source

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