Will the Anker SOLIX C1000 Gen 2 run a sump pump (1/3 hp to 1/2 hp)?

Check your pump. The C1000 Gen 2 covers the running draw of a 1/3 to 1/2 HP sump pump, but its 3000 W surge is under the highest starting figure in our sources.

Check: 44 min to 1.0 h

At 800 to 1,200 W running. Formula: 1,024 Wh x 0.85 / load W.

The checks

CheckStationSump pump (1/3 HP to 1/2 HP)Result
Running watts2,000 W rated[1]800 to 1,200 W[4][5][6][7][8]OK
Starting surge3,000 W[1]1,300 to 3,200 W[4][5]Depends on model
Energy1,024 Wh[1], about 870 Wh usable1,200 W at the high end[4][5][6][7][8]44 min to 1.0 h

Wattage figures we used

FigureWattsNotesSource
Running800 W1/3 HP sump pump[4]
Running1,050 W1/2 HP sump pump[5]
Running1,164 WZoeller M53, 3/10 HP. Derived: 9.7 A x 120 V[6]
Running1,128 WZoeller M98, 1/2 HP. Derived: 9.4 A x 120 V[7]
Running1,140 WWayne CDU790, 1/3 HP. Derived: 9.5 A x 120 V[8]
Running1,200 WWayne CDU800, 1/2 HP. Derived: 10 A x 120 V[8]
Starting1,300 W1/3 HP sump pump, starting watts[4]
Starting3,200 W1/2 HP sump pump. Derived: 1050 running + 2150 additional starting watts in Generac's chart[5]

Sump pumps are hard on portable stations because of the start. The figures we found put a 1/3 to 1/2 HP pump at 800 to 1200 W running, and 1300 to 3200 W while the motor starts.

Anker rates the C1000 Gen 2 at 2000 W continuous, which covers the running draw, and 3000 W surge. That is above the 1300 W starting figure for a 1/3 HP pump in Champion's chart, but below the 3200 W total for a 1/2 HP pump in Generac's chart. So it depends on your pump. A 1/3 HP pump fits by these figures; a 1/2 HP pump may trip the station when it kicks on.

If it does start, runtime is short. Running nonstop, the 1024 Wh battery lasts about 43 minutes to an hour. Real pumps cycle with the water level, so in most storms it lasts longer. The storm scenario page shows the runtime at several duty cycles.

Check the label on your pump for its horsepower and amps, and try the numbers in the calculator.

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Questions

Will the Anker SOLIX C1000 Gen 2 start a 1/2 HP sump pump?

Maybe not. Generac's chart works out to 3200 W starting for a 1/2 HP pump, above the 3000 W surge Anker lists. A 1/3 HP pump at 1300 W starting fits.

How long will the C1000 Gen 2 run a sump pump?

About 43 minutes to an hour running nonstop. A pump that runs part of each hour lasts longer.

Runtime calculator

Runtime (hours) = battery Wh x inverter efficiency / load W

Efficiency is the share of battery energy that reaches the outlet. Where the maker does not publish it we use 0.85. Average W is for loads that cycle on and off, like a fridge; leave it blank to use running watts. Starting surge assumes one motor starts at a time. How the estimates work.

More: everything the Anker SOLIX C1000 Gen 2 runs · appliance watts

Sources

  1. Anker SOLIX C1000 Gen 2 product page and specs (ankersolix.com), read Oct 22, 2026
  2. Anker SOLIX C1000 product page comparison table (ankersolix.com), read Oct 22, 2026
  3. Anker SOLIX S2000 product page comparison table (ankersolix.com), read Oct 22, 2026
  4. Champion Power Equipment Wattage Reference Chart (help.championpowerequipment.com), read Oct 22, 2026
  5. Generac GP Series portable generator brochure, wattage reference chart (PDF), read Oct 22, 2026
  6. Zoeller Technical Data Sheet FM2778, Mighty-Mate Series Models 53, 57, 55, 59, read Oct 22, 2026
  7. Zoeller Technical Data Sheet FM2779, Flow-Mate Series Model 98, read Oct 22, 2026
  8. WAYNE sump pump owner's manual specifications, horsepower and amp ratings (CDU790, CDU800 and others), read Oct 22, 2026