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Accessory power outlet wattage

20437 Views 7 Replies 5 Participants Last post by  MiddleAgeSubie
- I have just purchased a 2013 Outback Limited.
- I have a VAir 73P tire inflater that pulls 14 amps which corresponds to 168 watts.
- The Subaru manual says that the maximum wattage for the 12 volt accessory power outlets is 120 watts total for all three outlets.
- Fuse #20 in the passenger compartment is rated as 10A (120 watts) for "Accessory power outlet". (That makes sense according to the above)
- But fuse #13 is rated at 20A (240 watts) for "Socket".

My question is: What is "Socket"? Might that be the 12 volt power outlet in the cargo area and could I plug the 14 amp tire inflater into that outlet?

Don't tell me to get a manual pump ... Got one.

Thanks
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If the 2013 is the same as the previous years, fuse #20 powers the single outlet in the front cabin area and fuse #13 powers the other two outlets -- the one in the center console and the one in the rear cargo area.

Each socket(and it's associated wiring) is rated for a maximum of 120 Watts.

So to your question, the answer would appear to be "no"; a 14 Amp air pump should not be connected to any of the outlets.
 

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Not sure what you mean by "apply constant power to the branch off of #13,". What connections are being made, from where to where?

Circuits in these cars are interconnected. There's a possibility that, in effect, you're applying power to more than you think. But that depends on what it is you're doing. More information needed.

Oh, and check the power requirements of the laptop when charging. Are you charging directly from the 12 V or through an inverter? If the latter, don't underestimate the current drain.
 
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