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Old 02-21-2014, 08:30 AM   #11
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Join Date: May 2013
Location: Edgewood, New Mexico
Trailer: 2013 Esc19/'14 Silvrado
Posts: 2,175
Originally Posted by dbailey View Post
One thing to watch with the plug-in inverters is where you plug them in.

I ran into a problem trying to charge my laptop through a plug-in inverter plugged into a 12v outlet by the stove in my 19. Escape uses 16 gauge wire by default for its 12v outlets.

With the length of the wire run to this outlet through 16 gauge wire, under load there was enough voltage drop that my inverter would give up -- if input voltage dropped under 11.5v, it would fail.

It works fine if I use the 12v outlet under the dinette -- shorter wire run.

16 gauge wire?? Feeling now, considering the intensity in "Electrically challenged" on safe wire gauge.

"A billion here, a billion there...add it all up and before you know it you're talking real money." Everett Dirkson
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Old 02-21-2014, 11:05 AM   #12
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Join Date: Sep 2012
Location: Ottawa, Ontario
Trailer: 2013 Escape 19
Posts: 728
It's all a matter of safe and appropriate parts for planned and possible usage.

In the case of your inverter wiring, you might be putting 50 amps through the wire. In the case of a 12V outlet, it's got a 15 amp fuse on it, so we don't need to provision for more than 15 amps.

16 gauge is safe for 15 amps and with the fuse we don't need to worry about the possibility of putting more current through it. But depending on your planned usage it might not be appropriate -- it provides enough resistance that you get enough voltage drop over longer runs that some inexpensive inverters will fail.


2013 Escape 19 ("The Dog House") , 2012 Nissan Frontier
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