In my 2015 Subaru Forester, the 12V power outlet in the center console says that it is designed to supply loads that draw a max of 120W. To me, this would mean that there should be a max of 10 amps flowing through the outlet (120W/12V=10A). However, in the fuse box (and confirmed in the owner's manual) the fuse for the accessory power outlet is 20A, which would mean to me it wouldn't trip below 240W (12V*20A=240W).

I would like to buy a power inverter such as this one for use in my car, and I would like to understand what really is the maximum load I can use this inverter for given the constraints explained above.

My question essentially boils down to why is the 120W rating given for the outlet different than the fuse actually connected to it (240W)?

Edit - Here's a link to an online version of my owners manual I found. The power outlet info starts on page 330 of the PDF (part 6-9 of the manual) and the fuse info is on page 505 of the PDF (12-10 of the manual). http://cdn.dealereprocess.com/cdn/servicemanuals/subaru/2015-forester.pdf

I will try to get a circuit schematic on here, not quite sure where to find that yet though

In my 2015 Subaru Forester, the 12V power outlet in the center console says that it is designed to supply loads that draw a max of 120W. To me, this would mean that there should be a max of 10 amps flowing through the outlet (120W/12V=10A). However, in the fuse box (and confirmed in the owner's manual) the fuse for the accessory power outlet is 20A, which would mean to me it wouldn't trip below 240W (12V*20A=240W).

I would like to buy a power inverter such as this one for use in my car, and I would like to understand what really is the maximum load I can use this inverter for given the constraints explained above.

My question essentially boils down to why is the 120W rating given for the outlet different than the fuse actually connected to it (240W)?

Edit - Here's a link to an online version of my owners manual I found. The power outlet info starts on page 330 of the PDF (part 6-9 of the manual) and the fuse info is on page 505 of the PDF (12-10 of the manual).

I will try to get a circuit schematic on here, not quite sure where to find that yet though

In my 2015 Subaru Forester, the 12V power outlet in the center console says that it is designed to supply loads that draw a max of 120W. To me, this would mean that there should be a max of 10 amps flowing through the outlet (120W/12V=10A). However, in the fuse box (and confirmed in the owner's manual) the fuse for the accessory power outlet is 20A, which would mean to me it wouldn't trip below 240W (12V*20A=240W).

I would like to buy a power inverter such as this one for use in my car, and I would like to understand what really is the maximum load I can use this inverter for given the constraints explained above.

My question essentially boils down to why is the 120W rating given for the outlet different than the fuse actually connected to it (240W)?

In my 2015 Subaru Forester, the 12V power outlet in the center console says that it is designed to supply loads that draw a max of 120W. To me, this would mean that there should be a max of 10 amps flowing through the outlet (120W/12V=10A). However, in the fuse box (and confirmed in the owner's manual) the fuse for the accessory power outlet is 20A, which would mean to me it wouldn't trip below 240W (12V*20A=240W).

I would like to buy a power inverter such as this one for use in my car, and I would like to understand what really is the maximum load I can use this inverter for given the constraints explained above.

My question essentially boils down to why is the 120W rating given for the outlet different than the fuse actually connected to it (240W)?

Edit - Here's a link to an online version of my owners manual I found. The power outlet info starts on page 330 of the PDF (part 6-9 of the manual) and the fuse info is on page 505 of the PDF (12-10 of the manual). http://cdn.dealereprocess.com/cdn/servicemanuals/subaru/2015-forester.pdf

I will try to get a circuit schematic on here, not quite sure where to find that yet though