
3–2 on comparable metrics
EcoFlow DELTA 3 Ultra vs PECRON E3600LFP
DELTA 3 Ultra leads on 3 of the 10 metrics both units publish; E3600LFP leads on 2; 5 are level or not directly comparable. Capacity is within 0%, so this is a like-for-like decision rather than a size mismatch.


Pick this if
EcoFlow DELTA 3 Ultra
- Weight: 72.1 lb vs 79.0 lb
- Watt-hours per pound: 42.6 Wh/lb vs 38.9 Wh/lb
- Max solar input: 3,200 W vs 2,400 W
Buyers who want one system to grow from camping into home backup.
Pick this if
PECRON E3600LFP
- List price: $999 vs $1,399
- Cost per watt-hour: $0.33 vs $0.46
Value buyers who care about chemistry and output more than ecosystem.
Spec by spec
A green arrow marks the better figure on each row. Rows where only one unit publishes a number are shown without a winner rather than guessed.
| Metric | DELTA 3 Ultra | E3600LFP | What it means |
|---|---|---|---|
| Capacity | 3,072 Wh | 3,072 Wh | How much energy the unit stores. Sets how long everything else can run. |
| Continuous AC output | 3,600 W | 3,600 W | The largest load the inverter will run continuously, not counting surge. |
| Weight lower is better | 72.1 lb | 79.0 lb | The spec buyers most often regret ignoring. |
| List price lower is better | $1,399 | $999 | Vendor list price at the time of collection; street prices move. |
| Cost per watt-hour lower is better | $0.46 | $0.33 | Price divided by capacity. The fairest single value metric. |
| Watt-hours per pound | 42.6 Wh/lb | 38.9 Wh/lb | Capacity you get per pound carried. |
| Max solar input | 3,200 W | 2,400 W | Caps how large an array is useful, and therefore off-grid recharge speed. |
| Rated cycles | — | 3,500 cycles | Vendor claim for charge cycles before capacity degrades to 80%. |
| Max expandable capacity | — | 18,432 Wh | How far the system can grow with add-on batteries. |
| Warranty | 60 months | 60 months | Stated warranty length from the vendor listing. |
How each one ranks overall
EcoFlow DELTA 3 Ultra
- #18 of 73 for Best value (Wh per dollar) ($0.46)
- #18 of 74 for Most portable (Wh per pound) (42.6 Wh/lb)
- #40 of 75 for Most inverter headroom (117 W/100Wh)
- #3 of 55 for Highest solar input (3.2 kW)
- #24 of 72 for Most output per dollar (2.57 W/$)
- #20 of 75 for Best for home backup (67/100)
- #20 of 75 for Longest warranty (60 mo)
- #5 of 27 for Quietest under load (25 dB)
PECRON E3600LFP
- #3 of 73 for Best value (Wh per dollar) ($0.33)
- #30 of 74 for Most portable (Wh per pound) (38.9 Wh/lb)
- #47 of 75 for Most inverter headroom (117 W/100Wh)
- #12 of 55 for Highest solar input (2.4 kW)
- #7 of 24 for Most expandable (18.43 kWh)
- #11 of 65 for Longest service life (10752 kWh)
- #10 of 72 for Most output per dollar (3.60 W/$)
- #23 of 75 for Best for home backup (67/100)
- #50 of 75 for Longest warranty (60 mo)
The brands behind them
EcoFlow
The tech-forward buyer who reads the spec sheet and wants room to grow
Best for: Buyers who want one system to grow from camping into home backup.
Not for: Buyers who want the lowest cost per watt-hour and will never use an app.
Full EcoFlow profile →PECRON
The informed value buyer who wants LiFePO4 and a big inverter for less
Best for: Value buyers who care about chemistry and output more than ecosystem.
Not for: Buyers who need a mature app, dealer support or resale value.
Full PECRON profile →Where these numbers come from. Every figure on this page is taken from EcoFlow’s own product listing and is stored with the vendor’s exact wording, reproduced below. We do not estimate missing specs — a field the vendor does not publish is shown as “—” and excluded from rankings. Source: us.ecoflow.com/products/ecoflow-delta-3-ultra-portable-power-station-3072wh.
Vendor wording for each figure (5)
capacityWh: “Rated Capacity => 3072Wh 51.2V 60Ah”acOutputW: “3600W total (surge 7200W)”weight: “Net Weight => 32.7±0.6kg”solarInputW: “3200W Max”warrantyMonths: “5-Year Warranty”
Where these numbers come from. Every figure on this page is taken from PECRON’s own product listing and is stored with the vendor’s exact wording, reproduced below. We do not estimate missing specs — a field the vendor does not publish is shown as “—” and excluded from rankings. Source: www.pecron.com/products/pecron-e3600lfp-portable-power-station-3600w-3072wh.
Vendor wording for each figure (7)
capacityWh: “3072Wh Large Capacity”acOutputW: “3600W Bidirectional PSW Inverter”weight: “About 79 lbs(36Kg)”solarInputW: “2400W Solar Charging Max”cycleLife: “3,500+ Life Cycles to 80%”maxExpandableWh: “Up to 18,432Wh”warrantyMonths: “2+3 Years Warranty!”
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