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Open Roads Forum  >  Tech Issues

 > Broken Cable - 12-volt accessories

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pianotuna

Regina, SK, Canada

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Posted: 08/13/19 07:52am Link  |  Quote  |  Print  |  Notify Moderator

dougrainer where I live it gets to -40. Temperature compensated charging may be a good idea at such extremes. Many solar controllers do have temperature sensors for the battery bank.


Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp hours of AGM in two battery banks 12 volt batteries, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.

mchero

Henniker, NH

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Posted: 08/13/19 09:16am Link  |  Quote  |  Print  |  Notify Moderator

My midnight solar charge controller also has battery temp sensor.


Robert McHenry
Currently, Henniker NH
07 Fleetwood Discovery 39V
1K Solar
2005 Jeep Grand Cherokee
Prior:1993 Pace Arrow 37' Diesel

time2roll

Southern California

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Posted: 08/13/19 09:25am Link  |  Quote  |  Print  |  Notify Moderator

dougrainer wrote:

Please supply a Brand or Link for such a part. I have never seen such an animal on a RV solar set up. Doug


https://www.amazon.com/Morningstar-Remote-Temperature-Sensor-RTS/dp/B0072P8T9U

https://www.amazon.com/Midnite-Solar-MNBTS-Remote-Temperature/dp/B007PIIPP2

https://www.amazon.com/xantrex-Schneider........ric-temperature-controller/dp/B014JZSA9Y

ALL the good controllers have these sensors.
OEM may not be installing this equipment.


2001 F150 SuperCrew
2006 Keystone Springdale 249FWBHLS
675w Solar pictures back up

BFL13

Victoria, BC

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Posted: 08/13/19 09:40am Link  |  Quote  |  Print  |  Notify Moderator

Also some of the EPSolar controllers like my Tracer.

Some controllers have temp comp mounted with the controller, which might be inside where it is warm while the battery is outside in the cold.

I forget why to put it on the neg battery post. Was explained a while back, maybe by PT. Of course it helps when the battery has a post of the type you can put it on!

The TempAssure for the newer Parallax converters also has such a wire to the battery. Has the temp sensor just at the ring lug on the wire


1991 Oakland 28DB Class C
on Ford E350-460-7.5 Gas EFI
See Profile for House electronics set-up.

MEXICOWANDERER

las peñas, michoacan, mexico

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Posted: 08/13/19 09:57am Link  |  Quote  |  Print  |  Notify Moderator

Time to start an organized list for appliances that may use such a wire?

The reason I ask is because all the time the cable was corroding it wasn't working, and the OP apparently did not catch it. So far there is

Inverter charger?
Solar panel controller?

Would it help if the OP posted an image of the cable hookup at the battery posts or are they all the same?

dougrainer

Carrolton, Texas

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Posted: 08/13/19 10:48am Link  |  Quote  |  Print  |  Notify Moderator

MEXICOWANDERER wrote:

Time to start an organized list for appliances that may use such a wire?

The reason I ask is because all the time the cable was corroding it wasn't working, and the OP apparently did not catch it. So far there is

Inverter charger?
Solar panel controller?

Would it help if the OP posted an image of the cable hookup at the battery posts or are they all the same?


No need too. You take the info you have-----2006 Fleetwood Diesel. What the OP states. The Inverter/Chargers have such a wire/sensor. ONLY 1 from what the OP seems to say. That means Inverter/Charger temp sensor. Very rare for a Motorhome to have a Solar Charging system that would also involve a Temp sensor. I have worked on and still work on Motorhomes for 40 years and as I stated, never saw such a Solar temp sensor. Hence that is why I asked for more info. IF I ever see such a sensor I will know what it is for. I have never seen 2 such sensors on 1 battery bank. Doug

CA Traveler

The Western States

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Posted: 08/13/19 11:17am Link  |  Quote  |  Print  |  Notify Moderator

Doug,

You've confirmed what I suspected - mfg solar is mostly for the salesman - Oh and you have a great solar system!

If you worked on my MH you would see 2 sensors but the second is of course DIY.

BTW Thanks for all of your great input based on years of experience!


2009 Holiday Rambler 42' Scepter with ISL 400 Cummins
750 Watts Solar Morningstar MPPT 60 Controller
2014 Grand Cherokee Overland

Bob


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The Western States

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Posted: 08/13/19 12:21pm Link  |  Quote  |  Print  |  Notify Moderator

I suppose a RV could have more than one solar controller and sensor as well as more than one charger and sensor.

I've considered a second charger for gen operation as my AGMs could take another 100A. But for our current solar and travel style it's not "necessary" ???

MEXICOWANDERER

las peñas, michoacan, mexico

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Posted: 08/13/19 05:11pm Link  |  Quote  |  Print  |  Notify Moderator

I've seen pusher MH where such a wire is used for an LHA or Leece Neville alternator mounted voltage regulator. Battery voltage sensing lead. No inverter. So there are multiple uses for such a wire,
go figure [emoticon]

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