Originally Posted by Engle
when towing a late model Jeep Wrangler...,why do some people disconnect the battery?
The key is turned off. No steering wheel lock. The Power to the lights is coming from the coach.
The only juice used is when the even-brake presses the brake pedal.the coach powers all of the lights..
I don't see it bring disconnected. Is there someone out there that knows more than me?
When you say "Late model", that can mean different things. Some vehicles that are flat towable, change setup procedures for flat towing, from one year to another. Some, need the key in and turned, to unlock the steering and, in many cases, that also energizes some portion of the electrical system. Sometimes it doesn't.
And some vehicles, do not require the key in and turned due to the fact that there is no steering lock system.
But, while I've towed Seven different Jeep Wranglers over a 25 year period, the latest was an '04. And while it required the key in and turned, it did NOT turn any portion of the electrical system on so, there was no need for any battery disconnect or, compensation for electrical drain on the Jeeps system. Now, in the later "JK" series Jeeps, they required a certain fuse pulled in order to keep the battery from being drained due to the key in the turned position which, energized a portion of the electrical system.
But, even later JK models, ceased that portion of the prep in towing, for different operations. So, yes, there are some folks that have to disconnect the battery either because the manual FOR THEIR MODEL YEAR, tells them to or, they've had troubles when they didn't do it. I've never had a vehicle that I've had to disconnect the battery for flat towing and never will. The reason, there's a zillion flat towable vehicles out there that DO NOT NEED THE BATTERY DISCONNECTED. Why make things harder?