What size generator do I need for power tools?

Check, uncheck or adjust the typical device list below — watts, startup surge and battery size update instantly. Numbers come from U.S. DOE, ENERGY STAR and manufacturer spec sheets, not marketing copy.

1. Check what you need to power

Refrigeration & Freezers

Kitchen

Heating, Cooling & Fans

Water & Pumps

Laundry & Cleaning

Electronics & Office

  • 1
  • 2

Medical Devices

Power Tools & Outdoor

  • 1
  • 1

Lighting

  • 4

2. Your sizing

Running load2,480 W
Startup peak5,480 Wdriven by 1× Circular Saw (7-1/4 inch)
Daily energy1,408 Wh
Recommended capacity1,760 WhBasis: 1 day of typical usage, incl. 25% margin for inverter loss & battery depth of discharge
Backup duration:

Assumptions: daily hours per device follow DOE / ENERGY STAR duty cycles; capacity adds a 25% margin. Check your appliance nameplates — actual draw varies by model.

3. Best matches from our 6-brand database

  1. EcoFlow DELTA 3 Max Plus~$1,149
    • rated 3,000W covers your 2,730W continuous load
    • surge 6,000W covers your 5,480W start peak
    • 1.5 days of your typical daily use (2,048Wh / 1,408Wh)
    Check price →
  2. Jackery Explorer 2000 Plus~$2,599
    • rated 3,000W covers your 2,730W continuous load
    • surge 6,000W covers your 5,480W start peak
    • 1.5 days of your typical daily use (2,043Wh / 1,408Wh)
    Check price →
  3. Anker SOLIX F3800~$2,199
    • rated 6,000W covers your 2,730W continuous load
    • surge 9,000W covers your 5,480W start peak
    • 2.7 days of your typical daily use (3,840Wh / 1,408Wh)
    • 120/240V split-phase output
    Check price →

Static answer (crawlable summary)

Typical device list: Circular Saw (7-1/4 inch)×1, Drill (1/2 inch)×1, LED Bulb (100W equivalent)×4, Phone / Smartphone Charger×2, Laptop Computer×1.

Estimated from: Mfr spec class: corded 7.25in (Makita 5007MG / DeWalt DWE575) · Mfr spec class: corded 1/2in (Makita DP4000 / B+D DR560) · Energy Star Certified Products (bulbs) · Unbound Solar Power Table (secondary) · VT Extension table (DOE-derived) — some household values are cross-checked class estimates (not single-model nameplates); check your own appliance nameplate before buying.

Continuous load2,480 W
Startup peak5,480 W (driven by 1× Circular Saw (7-1/4 inch))
Daily energy use1,408 Wh
Recommended capacity1,760 Wh (25% margin included)
Minimum inverter2,730 W continuous

Frequently asked questions

What size generator do I need for power tools?

For a typical setup (Circular Saw (7-1/4 inch), Drill (1/2 inch), LED Bulb (100W equivalent), Phone / Smartphone Charger and Laptop Computer), you need at least 2,480W of continuous power. The single biggest moment is startup: when 1× circular saw (7-1/4 inch) kicks on, the momentary draw peaks at 5,480W. For a full day of runtime we recommend at least 1,760Wh of battery capacity (your devices use about 1,408Wh per day, plus a 25% margin for a full day of use).

Which power stations can handle this?

Based on published specs, EcoFlow DELTA 3 Max Plus, Jackery Explorer 2000 Plus, Anker SOLIX F3800 cover the 5,480W startup peak and deliver 1.5 days / 1.5 days / 2.7 days of typical daily use. Check the comparison cards above for the full numbers.

Why is the startup surge higher than the running watts?

Motor-driven devices (fridge compressors, well pumps, air conditioners) draw 2-5× their running power for a split second at startup — measured as locked-rotor amps (LRA). On this page the biggest spike comes from the Circular Saw (7-1/4 inch): a station that only meets the running load will trip or stall when it starts. Data sources: U.S. DOE Energy Saver, ENERGY STAR certified products, manufacturer spec sheets.

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