mezz wrote:If in a pinch, could you charge your trailer battery with jumper cables off your vehicle?
I think so. Anyone??
len19070 wrote:Minicamper42 wrote:If I understand what everyone here is saying, you are going to connect a wire to a second battery to your existing one to charge the trailer battery?...uh, shouldn't you guys be using a battery isolator?...sure the battery will get a charge, but at the same time your turning your cars electrical system into 24 volts!...even if you use a relay and fuses, you can ruin an ECM better known as a computer that runs your engine...
If I am the confused one here, please enlighten me on your reason to just run a hot wire from a second battery and connect it to the alternator so it can be charge...I understand the whole switching thing to separate the two batteries for charging, but why go through all the hassle when you can just bolt in an isolator and forget about it.
Whoa, whoa there.
There is NO WAY if you run a hot wire from your TV's positive battery terminal back to the positive terminal on the trailer battery (and the same with a ground to ground connection) that you will make 24 volts and burn up things.
Tumbleweed_Tex wrote::)
I suppose stirring things up just comes natural for me, but this got me to thinking. (that’s a scary thought in and of itself)
Let’s suppose I get my rig all wired up and ready to roll, with the TV battery (A) hooked up in parallel with the trailer battery (B) so it will charge whilst I travel.
This means that the A+ battery post is connected to the B+ battery post, and the A- and B- posts are connected as well. Parallel circuit, so a 12v light bulb somewhere in this circuit is happy, receiving 12v from the two batteries.
Just before I pull out of the driveway, I decide to check the hookup one last time, so I raise the hood on the TV, and using the open end of my new ½ inch chromium plated Craftsman combination wrench, I attempt to tighten the clamp on battery post A+. Unfortunately, the wrench slips and shorts out against the fender of the TV. (I’m such a clutz)
Now, I have two batteries in parallel (sorta) but I also have two batteries in series (sorta also) cause A+ is connected to B- by the wrench, which has no fuse. I wonder, at this point in time, what is the voltage across the light bulb…and um…across the ECM?
Just curious…
len19070 wrote:Review first Page of this Post
KISS
Less parts=Less problems
Len
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