Truck remote start and TC battery charging
When I got my TC, I had the dealership install the wiring for TC hookup under the bed. I added remote start as a feature to the truck when I bought it specifically so I could charge the batteries with...
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theoldwizard1 wrote:Kayteg1 wrote:
Even with my mechanical education I know that when alternator will put 14V into trailer wire, you will have full 14V on other end unless you start putting load on it.
When I drive for several hr with fridge on propane, my TC batteries will show 14.2V.
What is the make, model and year of your truck ?
I was an automotive engineer for 31 years. Cars and light trucks built since about 2000 (?) simply do NOT put out that much voltage for more than a minute or two after start up. Shortly after startup, they may put out that much voltage, but only at high idle (2000 RPM).
If an alternator put out 14.2 volts constantly, your battery would boil dry.
It is 2017 Ford.
The 14.2V was taken from TC factory display that I did not calibrate, so there is margin for error.
I observe voltage on modern vehicles and Ford in the past was famous for putting 14.5V in the system, what was cutting batteries life.
Other brand we use- Mercedes has voltage regulators set to not go above 14V and we had their batteries lasting 13 years.
New Ford seem to have it fixed, but too early to tell for sure.
