The power plug labeled 12V 120 W

It is accessory switched 12V 10 Amp max. for DC supply to whatever.

 

no, I don't see where you're going with this, it says 120 watts so 275 watts would blow the fuse.

 

It's a "cigarette lighter" plug that can put out 10A. 10A * 12V = 120W.

There are numerous inverters that fit in there.

https://www.amazon.com/s/ref=nb_sb_noss_2?url=search-alias%3Daps&field-keywords=inverter+car+120w&rh=i%3Aaps%2Ck%3Ainverter+car+120w

 

if you need more power, you can run an inverter off the 12v.

 

and how much power can you achieve off of 12 v? @bisco?

 

I know @bwilson4web had a 1000 watt inverter in one of his Prii. I think that is the maximum he recommends.

 

i think that's about right. there are several threads here with pics and great write ups.

 

Here is one old thread with some details & testing,
https://priuschat.com/threads/110-vac-inverter-installation.112235/

 

Sorry if this has been answered already - but does this 12V 120W run from the battery under the hood (used to start the vehicle), or is it running from the EV battery? If the former, does the engine compartment battery automatically get recharged from the EV battery, should it become depleted?

 

You can only get 12V DC from the 12 Volt Battery, the EV battery is way to high of a voltage over 200V.

Think of the 12 volt system as the control for the high voltage system. It runs all the traditional things as a normal car except the starter. The high voltage battery starts the car.

 

The 12V battery runs the 12V system including most accessories, power plugs in the car, lights, etc. It is also necessary to start the car because it is used to start the computers. With a dead 12V battery the car won't start. The high voltage (traction) battery runs the heat pump, the two drive motor/generators AND it is used to charge the 12V system. When the car is in operating mode ("READY" mode), power from the HV battery is used to run a power supply that can supply up to (we think) 100A to charge the 12V battery. The car has no "starter", just the two drive/traction motor/generators, one of which (MG1) is used to start the ICE if necessary.

 

It does while you are in READY.
I forget if it was the PIP or the Prime where it charged while the HV Battery was charging, as well.

 

Thanks guys.