Will 12 Volt Feed from 7-Way on Tow Vehicle Overcharge Trailer Auxiliary Battery
Question:
thank you in advance - so i have the solenoid isolator and fuse tap - how does my trailer battery send a signal to the alternator to stop charging - ? I guess I am looking for the charge sensor ? truck runs, alternator charges battery - then when full stops - correct? to prevent over charging? so how do i do this on the trailer? thank you again
asked by: Me M
Expert Reply:
It's impossible for your trailer-mounted auxiliary battery to be overcharged by the vehicle battery via the 12 volt feed on the 7-way since it only passes through a low current trickle-type charge. In fact, this is only enough for a maintenance charge - if your trailer battery is completely depleted, this method of battery charging will not provide a full re-charge. For that, you need to use a battery charger like # 329-GEN1.
The battery isolator solenoid # PK5231201 along with the fuse tap # F2526 you've installed shuts off your vehicle battery's 12-volt feed when the ignition is turned of to prevent the trailer battery from draining the vehicle battery. You don't need to worry about overcharging your trailer battery as it sounds like you're all set!
Products Referenced in This Question
NOCO GEN On-Board Battery Charger - AC to DC - Waterproof - 2 Bank - 12V - 10 Amp
- Battery Charger
- Battery Charger
- Boat
- Electric Vehicle
- Generator
- Trolling Motor
- 120 Ah
- Charges/Maintains
- 12V
- Wall Outlet to Vehicle Battery
- NOCO
more information >
Product Page this Question was Asked From
Starter Solenoid - SPST - 12 Volt - 100 Amp - Continuous Duty - Grounded
- Accessories and Parts
- Battery Boxes
- Switches and Solenoids
- 100 Amp
- Pollak
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Brake Controller
- Shop: Universal Mounting Panel for Redarc Tow-Pro Trailer Brake Controller Control Knob
- Shop: Redarc Tow-Pro Elite Brake Controller - Dash Knob - 2 Braking Modes - 1 to 3 Axles - Proportional
- Article: Brake Controller Installation: Starting from Scratch
- Article: Trailer Wiring Diagrams
- Q&A: Mounting Inserts for the Redarc Tow-Pro Liberty Brake Controller
- Q&A: How to Charge a Trailer Battery Through a 7-Way Connector
- Q&A: Can I Use My 12 Volt Circuit From My Vehicle Wiring To Power My Electric Jack.
- Shop: Plug-and-Play Wiring Harness for Redarc Tow-Pro Classic, Elite, or Liberty Trailer Brake Controllers
- Q&A: What is Difference Between Redarc Tow Pro Liberty and Elite
- Q&A: Is There a Minimum Panel Thickness When Installing Mounting Panel for Redarc Tow-Pro
- Shop: Roadmaster Battery Charge Line Kit for Towed Vehicles
- Shop: Mounting Panel for Redarc Tow-Pro Trailer Brake Controller Control Knob
- Shop: Redarc Tow-Pro Liberty Brake Controller - Dash Knob - 1 to 2 Axles - Proportional
- Shop: Mounting Panel for Redarc Tow-Pro Trailer Brake Controller Control Knob
- Shop: Suspension Enhancement
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Search Results: trailer brake controller
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Trailer Wiring
- Video: Choosing the Right Brake Controller
- Video: Redarc Tow-Pro Liberty Brake Controller Review RED24FR
- Shop: Trailer Hitch
- Search Results: brake controller
- Q&A: My Vehicle has a 4-Pin Trailer Plug, but Trailer has 7-Pin Trailer Plug
- Video: Redarc Tow-Pro Trailer Brake Controller Plug-and-Play Wiring Harness Review
- Search Results: etbc7
- Article: Towing a Trailer? Let's Talk About Brake Controllers
- Video: Choosing the Right Trailer Wiring
- Search Results: redarc