Can Trailer Battery be Overcharged by 12V Feed From 7-Way Connector
Updated 07/25/2018 | Published 07/24/2018
Question:
HI there, I read some Q and A of your site, And understood that the tow vehicle should add the Isolation Solenoid and Firestone Fuse Circuit Tap Kit. My question is : Will this set up over charge the RV battery once RV battery is full and the Tow vehicle keeps on driving. Thank you
asked by: K T
Helpful Expert Reply:
The 12V feed from your tow vehicle's 7-Way connector carries enough current to maintain a charge on your trailer mounted battery, but it does not have enough to actually charge up a depleted battery. Since the battery will really only get a trickle-type charge from the 7-Way, you do not need to worry about it being overcharged during a long drive.
Adding a battery isolation solenoid like the # PK5231201that you referenced is used to prevent the trailer battery from draining the battery in your tow vehicle while connected and the vehicle is turned off.
Product Page this Question was Asked From
Starter Solenoid - SPST - 12 Volt - 100 Amp - Continuous Duty - Grounded
- Accessories and Parts
- Battery
- Switches and Solenoids
- 100 Amp
- Pollak
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