Every time our trailer is hooked to the truck it is running on LP/12v. The only exception is a restricted area like the bridge-tunnel. During our last power outage, the camper refrigeration ran on LP/12v for 13+ hours and the battery(group 31 diehard platinum) still registered 2/3.
MNtundraRet wrote: A tow-vehicle can only supply 10 amps through the 7-pin connection to the trailer.
HOG WASH ... just the brakes takes 12A at full power and I see that all the time when testing my brakes ... I have a dedicated amp meter on my brake circuit. It amazes me where some folks get these outlandish ideas and made up numbers and then post them as fact. My trailer charge ckt on my Van is fuzed at 30A.
Larry
2001 standard box 7.3L E-350 PSD Van with 4.10 rear and 2007 Holiday Rambler Aluma-Lite 8306S Been RV'ing since 1974.
We are talking about two different things. The tow vehicle alternator is powering more than one 12 volt circuit in the trailer and is fused with a 30 amp fuse. Of course it runs: brakes, lights, turn signals, flashers, and powers a circuit to the trailer battery for some limited charging by the truck alternator.
The wires used for each circuit are limited by size what amps they can supply. That leaves only around 7 to 10 amps for the converter, depending on other ussage at that time.
* This post was
edited 11/05/11 05:59am by MNtundraRet *
Mark & Jan "Old age & treachery win over youth & enthusiasm"
2003 Fleetwood Jamboree 29
MNtundraRet wrote: A tow-vehicle can only supply 10 amps through the 7-pin connection to the trailer.
HOG WASH ... just the brakes takes 12A at full power and I see that all the time when testing my brakes ... I have a dedicated amp meter on my brake circuit. It amazes me where some folks get these outlandish ideas and made up numbers and then post them as fact. My trailer charge ckt on my Van is fuzed at 30A.
Larry
Do you like washing hogs? Yuk.
2010 Coleman CT250
2010 Ford F250 Crew Cab 6.4L PSD
marc515 wrote: We have a Norcold fridge in our Heartland MPG, and always run it in the "Auo" mode, in which in runs on "DC" while we are going down the road; and I feel safer running on DC than propane.
A friend indicated his RV dealer told him that running in the auto mode, and on DC power will ruin the circuit board.
Has anyone experienced problems with running in the Auto mode and on DC power?
Thank you
Here is a great 11 minute video on the Heartland MPG. Pretty interesting unit, well worth watching for anyone considering a very fuel-stingy cross-country camper.
The video describes the direct 12v frig feature/option, which comes standard on all MPG's by the way, and several other well-thought-out features. Looks like a great lightweight touring camper.
I think you might have better luck asking about the 12v frig feature in the truck camper forum. It is so uncommon amongst travel trailers and 5vr's as to make some think the 12v feature does not even exist. But 12v cooling is very common on motorhomes and slide in pick-up campers. There one might get some more relevant answers, and if anyone has ever had a 12v "board" problem, it will be on this truck camper forum.
Wes
...
Days spent camping are not subtracted from one's total.
- 2000 Excursion V-10 - 2004 Cougar Keystone M-294 RLS, 6140# tare
- Hensley Arrow - Champion 4000w/3500w gen
- Linda, Wes and Quincy the Standard Brown Poodle
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