Forum Discussion
DWeikert
Oct 20, 2014Explorer II
darsben wrote:tonymull wrote:
So all you really need is a 12v power cord for any appliance that has an AC to DC converter brick built into the original cord? Makes way more sense than inverting DC to AC then converting that AC back to DC and losing a little power at each step. Sounds like a no brainer.
Just look at the transformer on the cord and make sure it is putting out 12 volts. There may be the on outlier that does not put out 12 volt but puts out 18. Highly unlikely but you never know.
X2! An external power supply doesn't necessarily mean 12V
To the original question, the power lost in the inverter is minimal, but measurable so if you do a lot of off the grid camping every little bit helps. I agree with some posts referring to the quality of some of those 12v RV TVs, but if you can find a general consumer set with an external 12v brick, you have the best of both worlds. The latter is what I did with a Best Buy Insignia (pretty sure it's this model). I had a plug that matched the TV socket so I wired up the 12v plug and run it directly off the batteries and still have the brick if I ever want to run it off AC, for whatever reason.
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