Model comparison
A whole-home unit or a carryable 2 kWh one. The Explorer 2000 v2 is the cheaper energy, 38% less per watt-hour at the makers' prices, and is 74 lb lighter. The DELTA Pro 3 holds 2,054 Wh more, gives 1,800 W more continuous output and takes 2,600 W of solar against 400 W: buy it for that, and the Explorer 2000 v2 for the money.
EcoFlow
$2,799 $3,699 at EcoFlow
Buy it if you need more continuous output (4,000 W continuous and 8,000 W surge, against 2,200 W and 4,400 W).
Jackery
$864 $999 at Jackery
Buy it if you want the most stored energy per dollar ($0.42 against $0.68 per Wh).
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Compare the differences that matter for your devices; EcoFlow DELTA Pro 3 leads on 6, Jackery Explorer 2000 v2 on 3, and the rest are equal or not comparable.
| Field | DELTA Pro 3 | Explorer 2000 v2 |
|---|---|---|
| Capacity | 4,096 Wh | 2,042 Wh |
| Output (surge) | 4,000 W (8,000 surge) | 2,200 W (4,400 surge) |
| Weight | 113.5 lb | 39.5 lb |
| Price | $2,799 | $864 |
| Price per Wh | $0.68 | $0.42 |
| Chemistry | LiFePO4 | LiFePO4 |
| Rated cycles | 4,000 to 80% | 4,000 to 70% |
| Max solar input | 2,600 W | 400 W |
| Max AC input | 1,800 W | – |
| Wall recharge | – | 1.8 h to full |
| Expandable | yes, to 12,000 Wh | no |
| UPS switchover | 10 ms | 20 ms |
| AC outlets | 7 | 3 |
| USB-C ports | 2 | 2 |
| Warranty | 5 years | 5 years |
| Dimensions | 16.16 x 13.43 x 27.28 in | 13.2 x 10.4 x 11.5 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%; Explorer 2000 v2, 4,000 to 70%.
| Field | DELTA Pro 3 | Explorer 2000 v2 | Meaning |
|---|---|---|---|
| Capacity | DELTA Pro 3: specification record · checked 6 Sep 2026 | Explorer 2000 v2: specification record · checked 6 Sep 2026 | Manufacturer figure; unknown remains unknown |
| Output (surge) | DELTA Pro 3: specification record · checked 6 Sep 2026 | Explorer 2000 v2: specification record · checked 6 Sep 2026 | Manufacturer figure; unknown remains unknown |
| Weight | DELTA Pro 3: specification record · checked 6 Sep 2026 | Explorer 2000 v2: specification record · checked 6 Sep 2026 | Manufacturer figure; unknown remains unknown |
| Price | DELTA Pro 3: price record · checked 6 Sep 2026 | Explorer 2000 v2: price record · checked 7 Oct 2026 | Manufacturer figure; unknown remains unknown |
| Price per Wh | DELTA Pro 3: price record · checked 6 Sep 2026 | Explorer 2000 v2: price record · checked 7 Oct 2026 | Price ÷ rated Wh; calculated, not measured |
| Chemistry | DELTA Pro 3: specification record · checked 6 Sep 2026 | Explorer 2000 v2: specification record · checked 6 Sep 2026 | Manufacturer figure; unknown remains unknown |
| Rated cycles | DELTA Pro 3: specification record · checked 6 Sep 2026 | Explorer 2000 v2: specification record · checked 6 Sep 2026 | Stated cycles and remaining-capacity percentage; conditions may differ |
| Max solar input | DELTA Pro 3: specification record · checked 6 Sep 2026 | Explorer 2000 v2: specification record · checked 6 Sep 2026 | Manufacturer figure; unknown remains unknown |
| Max AC input | DELTA Pro 3: specification record · checked 6 Sep 2026 | Explorer 2000 v2: specification record · checked 6 Sep 2026 | Manufacturer figure; unknown remains unknown |
| Wall recharge | DELTA Pro 3: specification record · checked 6 Sep 2026 | Explorer 2000 v2: specification record · checked 6 Sep 2026 | Keep the full or 80% charge endpoint |
| Expandable | DELTA Pro 3: specification record · checked 6 Sep 2026 | Explorer 2000 v2: specification record · checked 6 Sep 2026 | Manufacturer figure; unknown remains unknown |
| UPS switchover | DELTA Pro 3: specification record · checked 6 Sep 2026 | Explorer 2000 v2: specification record · checked 6 Sep 2026 | Manufacturer figure; unknown remains unknown |
| AC outlets | DELTA Pro 3: specification record · checked 6 Sep 2026 | Explorer 2000 v2: specification record · checked 6 Sep 2026 | Manufacturer figure; unknown remains unknown |
| USB-C ports | DELTA Pro 3: specification record · checked 6 Sep 2026 | Explorer 2000 v2: specification record · checked 6 Sep 2026 | Manufacturer figure; unknown remains unknown |
| Warranty | DELTA Pro 3: specification record · checked 6 Sep 2026 | Explorer 2000 v2: specification record · checked 6 Sep 2026 | Manufacturer figure; unknown remains unknown |
| Dimensions | DELTA Pro 3: specification record · checked 6 Sep 2026 | Explorer 2000 v2: specification record · checked 6 Sep 2026 | Manufacturer figure; unknown remains unknown |
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 record and date. Device-load inputs are in the sizing calculator.
Check whether each unit has enough battery and output for the devices you want to run.
| Job | Needs | DELTA Pro 3 | Explorer 2000 v2 |
|---|---|---|---|
| a day of home backup (a full-size refrigerator, a router, phones and lights for a day) | 2,323 Wh, 92 W running, 1,351 W start | yes | no: too little capacity |
| a night of CPAP (a CPAP with its humidifier for one 8-hour night) | 599 Wh, 53 W running, 104 W start | yes | yes |
| two nights of camping (a compressor cooler, lights, phones, a laptop and a fan for two nights) | 2,066 Wh, 157 W running, 157 W start | yes | no: too little capacity |
| a day in an RV (a 12 V fridge, lights, TV, coffee maker, phones and a laptop for a day) | 648 Wh, 156 W running, 156 W start | yes | yes |
| a working day in a van (a working day of laptop, Starlink, fridge, lights and a fan) | 2,295 Wh, 244 W running, 244 W start | yes | no: too little capacity |
| a laptop and two phones (a laptop for six hours and two phone charges) | 396 Wh, 60 W running, 60 W start | yes | yes |
Hours = capacity × 0.85 ÷ device watts, with the draws from the device table; "start" is whether the inverter's surge clears the device.
| Device | Draw W | DELTA Pro 3 h | Start | Explorer 2000 v2 h | Start |
|---|---|---|---|---|---|
| CPAP machine (with heated humidifier) (with humidifier) | 53 | 65.7 | yes | 32.7 | yes |
| Refrigerator (full-size, ENERGY STAR, ~18 cu ft top freezer) (average draw) | 41 | 84.3 | yes | 42 | yes |
| Laptop (MacBook Air, charging) | 40 | 87 | yes | 43.4 | yes |
| Wi-Fi router | 24 | 145.1 | yes | 72.3 | yes |
| Starlink Standard kit (dish + router) | 88 | 39.8 | yes | 19.8 | yes |
| TV, 50-inch LED / Crystal UHD | 89 | 39.1 | yes | 19.5 | yes |
| Space heater, 1500 W | 1,500 | 2.3 | yes | 1.2 | yes |
More tracked models from both brands: EcoFlow and Jackery. Every unit at this size: the full table. Your own devices: the sizing calculator.
EcoFlow DELTA Pro 3 states a 10 ms switchover, so it can sit between the wall and a fridge, router or CPAP and take over when the power cuts; Jackery Explorer 2000 v2 states 20 ms. EcoFlow DELTA Pro 3 holds more (4,096 against 2,042). Check your appliance's start-up watts against the surge figures in the table.
Explorer 2000 v2 at $0.42 per Wh against $0.68. This compares purchase price with rated capacity, not lifetime delivered energy.
A small window unit draws 500 to 1,000 W running and several times that for an instant at start; check the surge figure in the table against the air conditioner's label. Either way an afternoon of it empties a 1 kWh unit; the RV page works the rooftop version.
