R-pod Owners Forum : Charge RPod Batteries with TV http://www.rpod-owners.com/ This is an XML content feed of; R-pod Owners Forum : I need HELP!!! : Charge RPod Batteries with TV Copyright (c) 2006-2009 Web Wiz Forums - All Rights Reserved. Thu, 21 May 2026 04:08:49 +0000 Tue, 24 Sep 2019 07:10:44 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 9.64 360 www.rpod-owners.com/RSS_post_feed.asp?TID=13194 R-pod Owners Forum http://www.rpod-owners.com/forum_images/web_wiz_forums.png http://www.rpod-owners.com/ Charge RPod Batteries with TV : Seafans,36’ was a round trip... http://www.rpod-owners.com/forum_posts.asp?TID=13194&PID=127294#127294 Author: Jeepinator
Subject: 13194
Posted: 24 Sep 2019 at 7:10am

Seafans,

36’ was a round trip to the TV battery.  Thanks for the info!
]]> Tue, 24 Sep 2019 07:10:44 +0000 http://www.rpod-owners.com/forum_posts.asp?TID=13194&PID=127294#127294 Charge RPod Batteries with TV : Jeepinator ... http://www.rpod-owners.com/forum_posts.asp?TID=13194&PID=127290#127290 Author: seafans
Subject: 13194
Posted: 23 Sep 2019 at 10:14pm

Jeepinator

36 feet seems like a longdistance for the #10 gauge wire?  From the battery to the 7-prong connectorequals how may feet?  The ground wire only requires to go from the 7-prongconnector to the closes bolt or heavy screw on the TV.  I found a good amp/wire chart.  Hope this works: http://www.offroaders.com/technical/12-volt-wiring-tech-gauge-to-amps/


]]> Mon, 23 Sep 2019 22:14:13 +0000 http://www.rpod-owners.com/forum_posts.asp?TID=13194&PID=127290#127290 Charge RPod Batteries with TV : 1V drop is about right for the... http://www.rpod-owners.com/forum_posts.asp?TID=13194&PID=127273#127273 Author: offgrid
Subject: 13194
Posted: 23 Sep 2019 at 4:49am

1V drop is about right for the conditions you describe. But 1V is a lot on a 12V system.  You'll likely never push that much current because the voltage will drop at the TV battery due to the load on the alternator (the alt ratings are at high rpm, not idle), so you'll wind up down around 12V or less at the trailer battery. That's why we don't trip our 30A trailer charge circuit c/b's when we run 10 AWG wire to the trailer connector. Maybe if you started with a fully charged TV battery, a fully discharged trailer battery, and immediately drove off so that your alternator was putting out its full current.

Please DO install that 30A breaker btw, the closer to the battery the better.

i

]]> Mon, 23 Sep 2019 04:49:08 +0000 http://www.rpod-owners.com/forum_posts.asp?TID=13194&PID=127273#127273 Charge RPod Batteries with TV : Check the output of the alternator.... http://www.rpod-owners.com/forum_posts.asp?TID=13194&PID=127272#127272 Author: seafans
Subject: 13194
Posted: 22 Sep 2019 at 10:38pm

Check the output of the alternator.  The jeep should have about a 160 Amp alternator if it has the tow package and aftermarket alternators with more output go up from there. When I wired my SUV for power to the trailer E-trailer suggested using an automatic reset 30 amp circuit breaker parallel in the wire, and a 10 amp for the brakes. 
]]> Sun, 22 Sep 2019 22:38:17 +0000 http://www.rpod-owners.com/forum_posts.asp?TID=13194&PID=127272#127272 Charge RPod Batteries with TV : After a reasonable amount of research... http://www.rpod-owners.com/forum_posts.asp?TID=13194&PID=127271#127271 Author: Jeepinator
Subject: 13194
Posted: 22 Sep 2019 at 9:02pm

After a reasonable amount of research I believe that charging with the TV alternator could potentially deliver 27 amps if I use a 10 gauge wire from TV battery (after isolator) to RPod.

Assumptions as follows:

Voltage drop across the wire will be V=I/R.  

V is Voltage

I is current - which would be the charging current from the truck

R is resistance

10ga is .9989 ohms/1000ft


1/((36*0.9989)/1000) = 27.80 amps

1 Volt (13.5 - 12.5)

36 Feet. (TV to camper and back to TV)


The alternative would be a 12v to 12v charger perhaps but other than a potentially higher charge rate I’m not sure it’s worth the money.


Thoughts?


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