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Old 03-28-2009, 10:05 PM   #1
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I have a Class C Winnebago with an E450 Ford Chassis. I plan to pull a 2009 Jeep using Brake Buddy. To avoid dinghy battery problems I obtained a product called TOAD_CHARGE that requires wiring to a device between the chassis battery and house battery called a "battery isolator". I popped the hood on the E450 but can't seem to locate the isolator device. Any ideas??

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Old 03-29-2009, 03:07 AM   #2
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The battery isolator is for the coach, not the automotive part. The isolator might be found in the same basement bay that holds the coach shore power cord.

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Old 03-29-2009, 05:51 PM   #3
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On most Ford class C chassis, the "Isolator" is a solenoid supplied by Ford. On my old class C (1993 E350), it was located under the hood at the corner of the firewall and the driver side fender. It should have two large terminals with big wires going to them. One side will have the chassis battery voltage on it, the other should have the house battery voltage. The brake buddy install instructions should tell you which side to use.

Hope this helps.

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Old 03-29-2009, 06:56 PM   #4
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Spoke of it in another forum

Checked the Toad-Charge web site

You do not need to hook to the isolator. You can hook to the chassis battery if it's 12 volt or the house battery if the chassis is 24

anywhere on the positive battery cable is.. acceptable
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Old 03-29-2009, 07:06 PM   #5
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We have the Toad Charge installed and it is wired from the battery to the diode at the toad battery. They have a 5 and 10 amp model. The 5 amp did not work for us so went to the 10 at no charge for it. Good wiring with a diode and no amp limiter would work just as well IMO.
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