How is this possible? - Page 3 - Fiberglass RV


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Old 07-25-2016, 07:49 PM   #29
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Originally Posted by Darwin Maring View Post

Looking at that schematic I'm wondering where the "house battery" is?
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Old 07-25-2016, 07:57 PM   #30
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FACT 1. The breakaway switch is supposed to hold the brakes for 15 minutes.
FACT 2. The 5 amp hour battery will do that.
FACT 3. The smaller "house batteries" are about 74 amp hours. They'll hold the brakes a lot longer.
FACT 4. When there is a house battery then the breakaway system battery is connected in parallel with the breakaway battery. This is necessary so the breakaway battery is charged with tow vehicle.
FACT 5. The current rating of batteries in parallel in the sum of the two.

I have a breakaway switch on my trailer. It's connected between the battery plus terminal, yes at the battery (house battery) and the break magnets. That's all that needed. The rest is sales hype.
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Old 07-25-2016, 08:09 PM   #31
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OK so it talks about a breakaway "box" housing a battery with optional internal charger. It does not give a schematic of the box itself, or mention if the battery will be hot to the trailer's charge line or house battery. No help there.

I still think you meant to say "will apply power only to the brakes when the emergency switch is activated." Correct me if I am wrong.
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Old 07-25-2016, 08:23 PM   #32
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Originally Posted by Byron Kinnaman View Post
Looking at that schematic I'm wondering where the "house battery" is?
Yes, its a horse trailer.. this psudo-schematic is not much help.
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Old 07-25-2016, 08:27 PM   #33
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...
FACT 4. When there is a house battery then the breakaway system battery is connected in parallel with the breakaway battery. This is necessary so the breakaway battery is charged with tow vehicle.....
Is the break-away battery wired directly to the house battery or charge line. Or is the charge line / house battery wired to a charger in the "battery box" that charges the break away battery but does not allow current in the reverse direction?
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Old 07-25-2016, 09:19 PM   #34
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I have a house battery. If I were to add a breakaway switch it would be without a separate battery, the house battery being way more than adequate.
I see the breakaway battery to be for a trailer which would otherwise have no onboard battery.

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Old 07-25-2016, 10:33 PM   #35
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Yes, its a horse trailer.. this psudo-schematic is not much help.
I'm sorry gordon2 the schematic is very clear and I understand it. I'm not sure what's in the box. It's designed for trailers that don't have a battery.
Yes it's a horse trailer, without battery.
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Old 07-25-2016, 10:35 PM   #36
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I have a house battery. If I were to add a breakaway switch it would be without a separate battery, the house battery being way more than adequate.
I see the breakaway battery to be for a trailer which would otherwise have no onboard battery.


Like I said earlier, the need for a separate breakaway battery is a sales gimmick or a sales rip off. It's for those that take a salesman's word for things.
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