90 Watt drain on 110V outlet for 7 hours

Any predictions if my 2021 Taco battery can handle 90 Watt drain on 110V outlet for 7 hours without running the engine? Thanks.

 

Your ignition would have to be On for that to happen. In 9hrs even without the inverter running, your battery would be flat.

 

Assuming 75% efficiency…

90/.75 = 120 watts
120 watts /12v = 10A
10A * 7 hours = 70Ah

Most group 24f batteries seem to be 40-60 aH, so it’ll probably be dead. Even with 100% inverter efficiency, you’re looking at 37.5 Ah, which is not great.

 

Plus the drain from the ECU for having the ignition switched on to power the inverter.

 

I predict,,,,
not even F'n close, but others have shown you real math. I would add to that, if your battery is nearly or new, and aging battery will not perform as well too.

 

Pretty sure the ign shuts itself off after 15 minutes anyways, so even with a giant battery it wont work.

 

If that is 90 watts of 110 volt power ,
90watts / 110volts = .818 amps so 7x .81 = 5.72 amps usage .

 

I think that is a thing on the later PTS 3rd Gens?

 

I know my truck(2018) shuts off after 15 minutes or so. Sometimes when I park in the driveway I turn on the ign and leave the truck so my android headunit has time to update and download new songs from the home wifi.

 

Interesting. I have left mine on Accessory over night a couple times. The first time, the battery was flat with the radio on, but not playing music. The second time, Audio was Off and I was able to start it.

The only thing that I found was that headlights will turn off after 20min if the Ignition is Off or on Accessory. Haven't had the opportunity to find out with Ignition On. Haha!