i want to run this electrical device in my cars, which have power inverters.

 

it's rated at 9 Volts and 1300 milliamps. it would be 15 minutes at a time, per "trip" if used at all, not continuous.

 

i'm thinking that's fine to run? probably less than my laptop right?

something is going to reduce that to 9 volts from 12?

 

nipper

So its a 9V 1.3A device running off a 120VAC inverter in the car?

 

Call it 12 watts, call all the conversions 75% efficient, so make that 16 watts, 16 watts/12 volts = 1.33 amp draw on +12V whenever its in use.

 

 

Dave

i have a power inverter into which i'm plugging in this device, which has a typical electrical outlet plug. i already have power inverters in my cars, so i can plug in any appliance (like my laptop). i'm going to plug in this other device (with listed draws) into the power inverter as well.

Correct, that shouldn't be any worse than your laptop. On the power supply for your laptop, it should list it's output voltage and current (max, not typical).

 

Using the same calculation from CNY_Dave, you can add the total wattage up and compare to the rated output from the inverter.

 

-Dave