charging batteries with truck
Several years ago when the fifth wheel that I had at the time only had room for one battery, I carried 2 more in the back of my truck. I used 2 sets of good jumper cables with ring terminals on one en...
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theoldwizard1 wrote:pinesman wrote:
I got to thinking about using those same cables to charge my batteries using the truck. I would not be using it for hours to run everything but just a little while to top off the batteries in the trailer.
Modern vehicle (after about 2000) charging system work TOTALLY DIFFERENT than the past. They drop the voltage down to about 13.2V within a few minutes of starting. That is much TOO LOW to charge such a large battery bank !
This is not true at lest on my 2013 Chevy 2500HD, my voltage after starting goes to 14.7 volts for a few minutes and then settles at 14.4. I can drive for hours and it never goes below 14.4 volts.
