Well pumps · EcoFlow DELTA 2 Max
How Long Will an EcoFlow DELTA 2 Max Run a Well Pump?
About 1.7 h for a 1/3 hp well pump (EWEB figure, 1,000 W), by our math: 2,048 Wh × 0.85 ÷ 1,000 W. Across the cases below: 1.7 h to 2.3 h.
| Spec | EcoFlow DELTA 2 Max |
|---|---|
| Battery | 2,048 Wh (maker spec) |
| Usable (× 0.85) | 1,741 Wh |
| Output / surge | 2,400 W / 4,800 W |
| Own draw | not listed |
| Solar input | 1,000 W |
| Price | $1,049 (Oct 24) at EcoFlow |
Check DELTA 2 Max price at EcoFlowPaid linkDELTA 2 Max on AmazonPaid link
Well pump hours on the DELTA 2 Max
| Case | Watts | On the DELTA 2 Max |
|---|---|---|
| Well pump (Idaho Power figure) (Idaho Power) | 750 W | 2.3 h |
| 1/3 hp well pump (EWEB figure) (EWEB) | 1,000 W | 1.7 h |
Wh × 0.85 ÷ (watts + the station’s own draw, where the maker lists it).
The pump only runs while water is drawn. Many well pumps run on 240 V and are wired into the panel; a station’s 120 V outlets can’t run a 240 V pump.
Can the DELTA 2 Max start it?
EWEB’s chart lists about 3,000 W in total to start a 1/3 hp well pump (EWEB); Portland General Electric warns the start can reach six times the running watts (PGE). The DELTA 2 Max has a 4,800 W surge. Well pump (Idaho Power figure): covers it; 1/3 hp well pump (EWEB figure): covers it.
How much an hour takes
An hour of a 1/3 hp well pump (EWEB figure) running nonstop uses about 1,000 Wh, about 57% of the DELTA 2 Max’s usable 1,741 Wh. At its 1,000 W solar input and our 75% assumption, strong sun puts about 750 Wh an hour back into the battery.
A wired-in pump needs a transfer switch installed by a professional; never connect a backup to house wiring yourself.
Well pump on similar stations
| Station | Capacity | 1/3 hp well pump (EWEB figure) | Price |
|---|---|---|---|
| EcoFlow DELTA 3 Max Plus | 2,048 Wh | 1.7 h | $1,199 |
| Anker SOLIX C2000 Gen 2 | 2,048 Wh | 1.7 h | $899.99 (Oct 24) |
| BLUETTI AC200L | 2,048 Wh | 1.7 h | $899 |
| Jackery Explorer 2000 v2 | 2,042 Wh | 1.7 h | $899 (Oct 24) |
Maker prices, Oct 26, 2026, unless dated. Checkout price applies.
More: EcoFlow DELTA 2 Max specs and every runtime · Well pumps on every station · calculator for your own devices.
Quick answers
How long will the EcoFlow DELTA 2 Max run a well pump?
About 1.7 h for a 1/3 hp well pump (EWEB figure, 1,000 W), by our math: 2,048 Wh × 0.85 ÷ 1,000 W.
Can the EcoFlow DELTA 2 Max start a well pump?
EWEB’s chart lists about 3,000 W in total to start a 1/3 hp well pump; Portland General Electric warns the start can reach six times the running watts. The DELTA 2 Max has a 4,800 W surge. Well pump (Idaho Power figure): covers it; 1/3 hp well pump (EWEB figure): covers it.
How long does the EcoFlow DELTA 2 Max take to recharge with solar?
About 2.7 hours of strong sun from empty at its 1,000 W solar input, by our 75% assumption; clouds and winter sun add time.
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