Drawing · 16.2 × 13.4 × 27.3 in · 113.5 lb
- Capacity
- 4,096 Wh
- Output
- 4,000 W (8,000 surge)
- Weight
- 113.5 lb
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EcoFlow DELTA Pro 3 vs Pecron E3600LFP
Two expandable units bought for home backup: EcoFlow's DELTA Pro 3 (4,096 Wh) against Pecron's E3600LFP (3,072 Wh). The E3600LFP is the cheaper energy, 52% less per watt-hour at the makers' prices, and is 34.5 lb lighter. The DELTA Pro 3 holds 1,024 Wh more, gives 400 W more continuous output and is rated for 4,000 cycles against 3,500: buy it for that, and the E3600LFP for the money once Pecron has it in stock.
Drawing · 17.5 × 12.1 × 13.8 in · 79 lb
$999 $2,299 at Pecron
- Capacity
- 3,072 Wh
- Output
- 3,600 W (7,000 surge)
- Weight
- 79 lb
Capacity
4,096 Wh
3,072 Wh
AC output
4,000 W
3,600 W
Surge
8,000 W
7,000 W
Solar input
2,600 W
2,400 W
Weight
113.5 lb
79 lb
EcoFlow
EcoFlow DELTA Pro 3
$2,799 $3,699 at EcoFlow
Price unchanged since Oct 7
- Capacity
- 4,096 Wh
- AC output
- 4,000 W
- Surge
- 8,000 W
- Solar input
- 2,600 W
- Weight
- 113.5 lb
Buy it if you need more continuous output (4,000 W continuous and 8,000 W surge, against 3,600 W and 7,000 W).
Pecron
Pecron E3600LFP
$999 $2,299 at Pecron
- Capacity
- 3,072 Wh
- AC output
- 3,600 W
- Surge
- 7,000 W
- Solar input
- 2,400 W
- Weight
- 79 lb
Buy it if you want the most stored energy per dollar ($0.33 against $0.68 per Wh).
Figure by figure
Compare the differences that matter for your devices; EcoFlow DELTA Pro 3 leads on 6, Pecron E3600LFP on 4, and the rest are equal or not comparable.
| Figure | DELTA Pro 3 | E3600LFP |
|---|---|---|
| Capacity | 4,096 Wh | 3,072 Wh |
| Output (surge) | 4,000 W (8,000 surge) | 3,600 W (7,000 surge) |
| Weight | 113.5 lb | 79 lb |
| Price | $2,799 | $999 |
| Price per Wh | $0.68 | $0.33 |
| Chemistry | LiFePO4 | LiFePO4 |
| Rated cycles | 4,000 to 80% | 3,500 to 80% |
| Max solar input | 2,600 W | 2,400 W |
| Max AC input | 1,800 W | 3,200 W |
| Wall recharge | – | 1.3 h to full |
| Expandable | yes, to 12,000 Wh | yes, to 18,432 Wh |
| UPS switchover | 10 ms | 20 ms |
| AC outlets | 7 | 5 |
| USB-C ports | 2 | 2 |
| Warranty | 5 years | 5 years |
| Dimensions | 16.16 x 13.43 x 27.28 in | 17.5 x 12.1 x 13.8 in |
Cycle counts are highlighted only when both makers rate them to the same remaining capacity. A full recharge is not ranked against a charge to 80%. Missing figures never count as an advantage. These are manufacturer ratings; matching endpoints do not prove identical test conditions.
Rated cycles: DELTA Pro 3, 4,000 to 80%; E3600LFP, 3,500 to 80%.
How the comparison is worked out
| Figure | DELTA Pro 3 | E3600LFP | Meaning |
|---|---|---|---|
| Capacity | DELTA Pro 3 spec sheet | E3600LFP spec sheet | As the maker states it; a dash where not published |
| Output (surge) | DELTA Pro 3 spec sheet | E3600LFP spec sheet | As the maker states it; a dash where not published |
| Weight | DELTA Pro 3 spec sheet | E3600LFP spec sheet | As the maker states it; a dash where not published |
| Price | DELTA Pro 3 price source · checked Oct 9, 2026 | E3600LFP price source · checked Oct 11, 2026 | As the maker states it; a dash where not published |
| Price per Wh | DELTA Pro 3 price source · checked Oct 9, 2026 | E3600LFP price source · checked Oct 11, 2026 | Price ÷ rated Wh; calculated, not measured |
| Chemistry | DELTA Pro 3 spec sheet | E3600LFP spec sheet | As the maker states it; a dash where not published |
| Rated cycles | DELTA Pro 3 spec sheet | E3600LFP spec sheet | Stated cycles and remaining-capacity percentage; conditions may differ |
| Max solar input | DELTA Pro 3 spec sheet | E3600LFP spec sheet | As the maker states it; a dash where not published |
| Max AC input | DELTA Pro 3 spec sheet | E3600LFP spec sheet | As the maker states it; a dash where not published |
| Wall recharge | DELTA Pro 3 spec sheet | E3600LFP spec sheet | Keep the full or 80% charge endpoint |
| Expandable | DELTA Pro 3 spec sheet | E3600LFP spec sheet | As the maker states it; a dash where not published |
| UPS switchover | DELTA Pro 3 spec sheet | E3600LFP spec sheet | As the maker states it; a dash where not published |
| AC outlets | DELTA Pro 3 spec sheet | E3600LFP spec sheet | As the maker states it; a dash where not published |
| USB-C ports | DELTA Pro 3 spec sheet | E3600LFP spec sheet | As the maker states it; a dash where not published |
| Warranty | DELTA Pro 3 spec sheet | E3600LFP spec sheet | As the maker states it; a dash where not published |
| Dimensions | DELTA Pro 3 spec sheet | E3600LFP spec sheet | As the maker states it; a dash where not published |
Estimated AC energy = rated Wh × 0.85. Runtime = estimated AC energy ÷ load W, with no reserve. Capacity and weight differences use the displayed figures; price per Wh uses each model's own price and the day it was checked. The device draws are in the watt-hour calculator.
- Capacity: E3600LFP minus DELTA Pro 3 = -1,024 Wh (-25% of the DELTA Pro 3 figure).
- Carry weight: E3600LFP minus DELTA Pro 3 = -34.5 lb (-30.4% of the DELTA Pro 3 figure).
- Price per Wh: E3600LFP minus DELTA Pro 3 = -0.36 USD/Wh (-52.4% of the DELTA Pro 3 figure).
Will it run your gear?
Check whether each unit has enough battery and output for the devices you want to run.
| Use | Needs | DELTA Pro 3 | E3600LFP |
|---|---|---|---|
| a day of home backup (a full-size refrigerator, a router, phones and lights for a day) | 2,323 Wh, 161 W running, 1,351 W startup | yes | yes |
| a night of CPAP (a CPAP with its humidifier for one 8-hour night) | 599 Wh, 53 W running, 104 W startup | yes | yes |
| two nights of camping (camp lights, phones, a laptop and a fan for two nights) | 2,066 Wh, 157 W running, 157 W startup | yes | yes |
| a day in an RV (a day of RV lights, TV, phones and a laptop) | 648 Wh, 156 W running, 156 W startup | yes | yes |
| a working day in a van (a working day of laptop, Starlink, lights and a fan) | 1,674 Wh, 189 W running, 189 W startup | yes | yes |
| a laptop and two phones (a laptop for six hours and two phone charges) | 396 Wh, 60 W running, 60 W startup | yes | yes |
Runtime by device
Hours = capacity × 0.85 ÷ device watts, with the draws from the device table; "Start" says whether the output and surge ratings cover the startup figure we use for each device (the refrigerator, 1,300 W startup allowance, from a larger 27 cu ft Whirlpool's tech sheet), so a "yes" there means likely, not certain, to start yours.
| Device | Draw W | DELTA Pro 3 h | Start | E3600LFP h | Start |
|---|---|---|---|---|---|
| CPAP machine (with heated humidifier) | 53 | 65.7 | yes | 49.3 | yes |
| Refrigerator (full-size, ENERGY STAR, ~18 cu ft top freezer) (average draw) | 41 | 84.3 | yes | 63.2 | yes |
| Laptop (MacBook Air, charging) | 40 | 87 | yes | 65.3 | yes |
| Wi-Fi router | 24 | 145.1 | yes | 108.8 | yes |
| Starlink Mini (router built in) | 33 | 107.1 | yes | 80.3 | yes |
| TV, 50-inch LED / Crystal UHD | 89 | 39.1 | yes | 29.3 | yes |
| Space heater, 1500 W | 1,500 | 2.3 | yes | 1.7 | yes |
Buy the DELTA Pro 3 if…
- you need more continuous output (4,000 W continuous and 8,000 W surge, against 3,600 W and 7,000 W)
- you need a higher solar input ceiling (2,600 W against 2,400 W); actual recharge depends on the panels
- it will sit between the wall and a refrigerator or router (maker-stated 10 ms switchover; 20 ms for the other)
- you want the higher stated cycle count at the same 80% remaining capacity (4,000 against 3,500); test conditions can still differ
- you want the extra capacity (4,096 Wh against 3,072 Wh)
Buy the E3600LFP if…
- you want the most stored energy per dollar ($0.33 against $0.68 per Wh)
- the $1,800 difference matters more than the specs
- you carry it more than you run it (79 lb against 113.5 lb)
More models from both brands: EcoFlow and Pecron. Every model we list: all 116 in one table. Your own devices: the watt-hour calculator.
Questions buyers ask
Which is better for power outages, the DELTA Pro 3 or the E3600LFP?
EcoFlow DELTA Pro 3 states a 10 ms switchover, so it can sit between the wall and a fridge or router and take over when the power cuts, once the device is in an outlet the manual gives the backup to and any AC timeout is off (for a CPAP or a computer, check that device rides through the switch); Pecron E3600LFP states 20 ms. EcoFlow DELTA Pro 3 holds more (4,096 against 3,072). Check your appliance's startup watts against the surge figures in the table.
Which is cheaper per watt-hour?
E3600LFP at $0.33 per Wh against $0.68. This compares purchase price with rated capacity, not lifetime delivered energy.
Can either run a window air conditioner?
Only if the air conditioner's running watts stay under the AC output (4,000 W on the DELTA Pro 3, 3,600 W on the E3600LFP) and its start fits the surge figures in the table: read both on the air conditioner's label or in its manual, and test it before you rely on it. For the hours, multiply the rated Wh by 0.85 for inverter losses and divide by the running watts. A unit whose label says 500 W, for example, would run about 7 hours on the DELTA Pro 3 and about 5.2 hours on the E3600LFP on a full charge, if its compressor ran without a break.