TrailManor Owner's Forum - View Single Post - Battery Drain When Travelling

Padgett · 10-09-2014, 09:06 PM

Except that is allowing for the return also: =IF($B$7>0,($B$6*C$19*$B$5*2/$B$7),"") b7-# conductors, b6-amps, c19-ohms/ft, b5-length

E=IR Since b7=1 (solid core) we can drop that factor

Voltage loss a single conductor for 20 ft of #12 at 20A is .65v 10ft of #10 is .20v = .85v

Agree the Bargman must be spiffy both for the 12v and the ground (cannot rely on trailer to hitch ball).

Bottom line: Charge the battery before you leave and rely on the TV just to maintain the charge. I also carry a generator if not guarenteed power.

ps in another lifetime at the swamp in the 70s one of the interesting questions was "If the A-12 was retired and F-12 cancelled, why were we still building J58s ?"

10-09-2014, 09:06 PM	#29
Padgett TrailManor Master Join Date: Apr 2014 Location: Orlando Posts: 2,796	Except that is allowing for the return also: =IF($B$7>0,($B$6C$19$B$5*2/$B$7),"") b7-# conductors, b6-amps, c19-ohms/ft, b5-length E=IR Since b7=1 (solid core) we can drop that factor Voltage loss a single conductor for 20 ft of #12 at 20A is .65v 10ft of #10 is .20v = .85v Agree the Bargman must be spiffy both for the 12v and the ground (cannot rely on trailer to hitch ball). Bottom line: Charge the battery before you leave and rely on the TV just to maintain the charge. I also carry a generator if not guarenteed power. ps in another lifetime at the swamp in the 70s one of the interesting questions was "If the A-12 was retired and F-12 cancelled, why were we still building J58s ?" __________________ Looking for a 24/17 in or near Florida.