Scenario
What size power station runs a sump pump through a 12-hour storm?
Our best fit is the PECRON F3000LFP, at about 16 h calculated. The plan needs 1,950 Wh at the outlet over 12 hours and about 1,300 W at start-up, from maker specs and cited appliance figures checked .
Yes. PECRON F3000LFP runs a sump pump through a 12-hour storm for about 16 h. calculated from maker specs, .
Links go to the maker's store. RunTimeFit participates in the eBay Partner Network. RunTimeFit may earn a commission from qualifying eBay purchases made through links on this site, at no extra cost to you. Disclosure.
Goal: 12 h. Hours use maker inverter efficiency where published, otherwise the 0.85 estimate, and leave out idle draw the maker doesn't publish. Stations shown out of stock or with availability not shown are skipped. How we pick.
Open this plan in the calculator to change hours, watts, solar or temperature.
Devices and assumptions
| Device | Qty | Hours a day | Running | Starting | Source |
|---|---|---|---|---|---|
| Sump pump (1/3 HP) | 1 | 6 | 650 W | 1,300 W | Champion wattage chart |
Together: 650 W running, about 1,300 W while the largest motor starts, and 3,900 Wh a day. Over the 12-hour goal that is 1,950 Wh at the outlet calculated.
- The pump runs a quarter of the time in heavy rain, an editable assumption; real pumps run far less in light rain and continuously in a flood.
- Running and starting watts are Champion chart midpoints for a 1/3 HP sump pump.
Stations that fit, cheapest first
| Station | Hours calculated | Starting headroom | List price |
|---|---|---|---|
| PECRON F3000LFP | 16 h | 71% | $899 |
| EcoFlow DELTA 3 Ultra | 16 h | 82% | $1,349 |
| Anker SOLIX F3000 | 16 h | 82% | $1,499.99 |
| Anker SOLIX F3800 Plus | 20 h | 78% | $2,599.99 |
| EcoFlow DELTA Pro 3 | 21 h | 84% | $2,799 |
| Goal Zero Yeti PRO 4000 | 21 h | 82% | $3,999.95 |
7 of 43 stations in our data fit, counting out-of-stock and unpriced ones; this table shows the cheapest in-stock ones.
What would change this answer
- Your own device watts: the label on the device beats any typical figure. Enter it in the calculator.
- Inverter idle draw: most makers don't publish it, so hours here leave it out. Small loads feel this most.
- Cold: below a maker's temperature range a station may stop discharging or charging.
Our take
Sump pumps are the hardest common backup load: a motor start that many smaller stations cannot handle, and run time that depends entirely on the storm. The starting check matters more than capacity here. If your pump runs more often than this assumption, raise the hours in the calculator; a battery-backup sump pump made for the job is also worth comparing.
Related
- What size power station do you need for a power outage
- What size power station keeps a fridge running through a 24-hour outage
- What size power station keeps a chest freezer cold for 48 hours
- What size power station keeps a home office running for an 8-hour outage
- What size power station runs a CPAP for 3 nights of camping
- What size power station runs a travel CPAP without a humidifier for 2 nights
- What size power station runs Starlink, a laptop and a fridge for a day of van life
- How the hours are calculated