Often, yes, and it's a great way to warm your suit on the drive to the break. Here's the math to check your vehicle.
What Heated needs: 120 V and 170 W for the pair. If you're running it from the 12 V side through an inverter, the inverter loses about 10 to 15% in the conversion, so plan on about 200 W. That's roughly 15 amps at 12 V.
- Built-in AC outlet: check the watt rating in your owner's manual or next to the outlet. Many trucks and SUVs have 400 W outlets, and EVs with vehicle-to-load (V2L) supply far more. Rated lower? Give it a try anyway. If the outlet can't keep up, its overload protection simply switches it off. Unplug Heated and check your manual to reset it.
- Add-on inverter: choose a pure sine wave inverter rated 300 W or more, wired directly to the vehicle battery.
- Cigarette-lighter socket: most are fused at 10 to 15 amps, about 120 to 180 W at 12 V. That's below the 200 W an inverter needs to draw, so running Heated from a lighter circuit is unlikely to work.
Keep the engine running (or your EV switched on) so you don't drain the battery.
Want to dry off-grid without an inverter? Original runs on any USB-C battery pack.