Maximum wattage inverter?

Discussion in 'Gen 4 Prius Main Forum' started by George W, Jul 15, 2026 at 9:42 PM.

  1. George W

    George W Senior Member

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    Is there a spec sheet on what the maximum wattage inverter I could run off of my Gen 4 prius? So far I've run my TSW 1K inverter with an angle grinder, jig saw, belt sander, and a 100 watt per channel stereo amplifier.

    The power tools were all old Craftsman brand that maxed out around 450 Watts, even under load. Thank you.
     
  2. T1 Terry

    T1 Terry Senior Member

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    Does a Gen 4 Prius have V2L from the traction battery? Or are you using the 12v lead acid battery to power the inverter?

    T1 Terry
     
  3. ETC(SS)

    ETC(SS) The OTHER One Percenter.....

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    .....just a swag but they probably fuse the DC-DC converter at 100a.
    I wouldn't go much above a 1000w inverter, which has been done many times here in the forum.

    MAYBE 1500w if you carry a spare fuse..... :D

    Good Luck!
     
  4. ChapmanF

    ChapmanF Senior Member

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  5. George W

    George W Senior Member

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    12 V battery
     
    T1 Terry likes this.
  6. George W

    George W Senior Member

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  7. T1 Terry

    T1 Terry Senior Member

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    That limits things. My MG4, via V2L powered 4000w of patio heaters last night to dry the paint on the bin door panels from my Winnebago in a makeshift bake oven in a shipping container. I only have 3600w courtesy of the workshop next door and I need that in the motorhome.

    T1 Terry