windrush 122

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slow coach - 26 Jul 2007 19:47 GMT

I recently bought an eldely caravan (Windrush 122). It is in good nick
etc. However nobody can tell me if I need to have the battery switched
'off' or at position '1' inorder to charge it as I tow. (Position '2'
is for mains charging.
Sorry this isn't a serious car question but I don't know who else to
ask:rolleyes:
Slow coach

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slow coach

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Scott Dorsey - 26 Jul 2007 21:05 GMT

>I recently bought an eldely caravan (Windrush 122). It is in good nick
>etc. However nobody can tell me if I need to have the battery switched
>'off' or at position '1' inorder to charge it as I tow. (Position '2'
>is for mains charging.
>Sorry this isn't a serious car question but I don't know who else to
>ask:rolleyes:

Do you have a schematic of the electrical system? My suspicion is that
you don't want it off, but the diagram of how the battery is connected to
the switch will tell you.
--scott

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"C'est un Nagra. C'est suisse, et tres, tres precis."

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Steve - 26 Jul 2007 21:37 GMT

>>I recently bought an eldely caravan (Windrush 122).

OK, I just earned my "Ign'ern't American" badge... I kept thinking
"Dodge Minivan" for a minute or two before my brain clicked into "travel
trailer" :-)

It is in good nick

>>etc. However nobody can tell me if I need to have the battery switched
>>'off' or at position '1' inorder to charge it as I tow. (Position '2'
>>is for mains charging.
>>Sorry this isn't a serious car question but I don't know who else to
>>ask:rolleyes:

Like Scott said, A schematic would help. Is this a switch that parallels
the trailer (caravan) battery onto the car's 12v feed, or is there a
battery isolator also involved? My guess is that position 1 is either a
direct feed or a battery isolator, and is where charging would occur.
You can always try experimenting- put a voltmeter on the trailer
battery. With the car running and the trailer wiring DISCONNECTED to
insure no charging, you should see around 12-12.6 volts at the trailer
battery. Next, plug in the trailer connection with the switch in "off",
and if you see the trailer battery voltage jump up to around 13.5, then
you are charging the battery in that position. But if the voltage does
not increase, you are not charging. Next try the "1" position and see
what happens.

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