How to Charge Trailer From Secondary Battery with Isolator
Question:
Im looking for kind of an obscure answer I cant seem to find. I have a 2010 Suburban for towing my 30foot travel trailer. My travel trailer has two 12v batteries in parallel, and Im looking to charge them via the 7-pin trailer connector. However, I also have a dual battery setup with a battery isolator, and my secondary battery is a deep-cycle. Im looking to charge my trailer via my secondary battery, but without draining my primary battery. Is there a way to convert the Stud A, which gives power to the 12v pin in the connector, to receive power from my secondary battery only?
asked by: Ian
Expert Reply:
It sounds like you currently have an isolator like the Deka # DW08771 installed between your primary and secondary battery on the trailer. If this is the case, then running a 12V wire from the 7-Way connector to the secondary battery positive post should give you exactly what you are looking for.
I have included a diagram that might help with the wiring for this setup.
Product Page this Question was Asked From
Deka Battery Isolator - 120 Amp
- Battery Charger
- Battery Isolators
- 6V
- 12V
- 24V
- 36V
- 48V
- 50V
- Vehicle Battery to Auxiliary Battery
- Deka
more information >
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on Battery Charger
