What Is the TR118665 Tow-Ready Battery Isolation Solenoid and How Does It Work?
The TR118665 Tow-Ready Battery Isolation Solenoid is a 3-pole 12-volt solenoid designed to prevent the trailer’s 12-volt accessories from draining the towing vehicle’s battery when the ignition is off. It operates by using an 80-amp hardwired solenoid controlled by the vehicle’s ignition. When the engine runs, it allows power flow to trailer accessories; once off, it isolates the trailer power to protect the vehicle battery.
How Does the Three-Pole Design of the TR118665 Solenoid Function?
The solenoid has three electrical connections: one side pole receives power input from the vehicle battery, the opposite side pole sends power to the trailer accessories, and the center pole connects to the vehicle ignition voltage, controlling solenoid activation.
What Happens When the Vehicle Ignition Is Turned On or Off?
When ignition is on, power flows to the center pole, activating the solenoid to complete the circuit between the vehicle battery and trailer accessories, supplying power. When ignition turns off, the solenoid deactivates, breaking the circuit and stopping power flow, thereby protecting the vehicle’s battery from drain.
How Is the TR118665 Solenoid Grounded?
The solenoid’s mounting bracket acts as the ground, providing a stable electrical reference point essential for proper solenoid operation.
Why Is Battery Drain Prevention Important in Towing Setups?
Trailer accessories powered by the vehicle’s battery when the engine is off can rapidly drain it, potentially leaving the vehicle unable to start. Using the TR118665 battery isolation solenoid safeguards battery health and avoids inconvenient dead battery scenarios.
How Does the TR118665 Solenoid Extend Vehicle Battery Life?
By eliminating power draw from trailer accessories when the vehicle is off, it reduces unnecessary battery discharge cycles, thus extending battery lifespan and reliability.
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What Makes the TR118665 a Cost-Effective Towing Power Management Solution?
Compared to complex electronic systems, the TR118665 is a simple, robust, and affordable solenoid that efficiently manages auxiliary power flow, enhancing system reliability without expensive installation or maintenance.
Where Is the TR118665 Battery Isolation Solenoid Commonly Used?
It is widely used in RVs, trailers, and marine applications where a vehicle supplies 12-volt auxiliary power to a towed unit, requiring battery protection and proper isolation.
Can the TR118665 Solenoid Be Installed on Any Vehicle or Trailer?
The solenoid is versatile and not vehicle-specific, suitable wherever 12V trailer power isolation is needed. Proper wiring and grounding ensure optimal operation.
How Does RackBattery Align with Devices Like the TR118665 in Power Management?
RackBattery integrates advanced energy storage solutions with efficient power management components like battery isolation solenoids, providing clients with comprehensive systems that maximize battery life and safeguard critical power circuits.
RackBattery Expert Views
“At RackBattery, we combine reliable lithium battery technology with proven power management devices like the TR118665 solenoid to deliver durable, efficient, and safe energy storage solutions,” says a company expert. “Our integrated approach supports critical applications requiring precise power control and battery preservation.”
Conclusion
The TR118665 Tow-Ready Battery Isolation Solenoid is a vital 3-pole solenoid that smartly controls and isolates trailer auxiliary power to prevent vehicle battery drain. Its simple design, cost-effectiveness, and versatility make it an essential component in towing setups. RackBattery utilizes such innovations in tandem with advanced battery systems to provide comprehensive power protection and extended battery life.
Frequently Asked Questions
What is the primary function of the TR118665 solenoid?
To isolate trailer power when the towing vehicle’s ignition is off, preventing battery drain.
How does the 3-pole design impact its operation?
It manages power input, output, and ignition control for automatic switching.
Can this solenoid fit any towing setup?
Yes, it’s adaptable to most 12V trailer and vehicle power systems.
Why is preventing battery drain critical in trailers?
To avoid vehicle battery depletion and ensure reliable vehicle startup.
What role does RackBattery play in power management?
RackBattery provides advanced battery solutions that work with devices like TR118665 to optimize system efficiency.
