On Saturday, September 29, 2018 at 3:30:18 AM UTC-4, Mr. Luddite wrote:
On 9/29/2018 3:18 AM, wrote:
On Sat, 29 Sep 2018 03:13:55 -0400, "Mr. Luddite"
wrote:

On 9/28/2018 8:59 PM, justan wrote:
"Mr. Luddite" Wrote in message:
On 9/28/2018 8:44 PM, wrote:
On Fri, 28 Sep 2018 17:31:26 -0400, John H.
wrote:

On Fri, 28 Sep 2018 21:19:50 -0000 (UTC), Bill wrote:

John H. wrote:
On Fri, 28 Sep 2018 20:08:34 -0000 (UTC), Bill wrote:

John H. wrote:
On Fri, 28 Sep 2018 08:12:14 -0700 (PDT), Tim wrote:


9:03 AMJohn H
- show quoted text -
Good to see you understood his whine. I'm still not sure what he means
by 'same bluegrass festival
on different sites'. Maybe because the music is similar at each festival?

It gets to where the music takes second place to seeing and having fun
with good friends.

.......

At least you?re getting fresh air, exercise, and sunshine.
Btw, I rode my Guzzi 400 mi this week...so far. Might get another 200
mi in before Monday.

I think I'll take mine for a ride tomorrow. I finished installing the new
converter, and now I'm
tired. Climbing in and out of that thing is a bitch.


Dc to AC is an Inverter.

Agreed. My converter converts 120vac to 12vdc.


The one I replaced in my Palomino camper did that also was called an
inverter.

https://www.diffen.com/difference/Converter_vs_Inverter

Maybe they were just calling it the wrong name.

Weigh it ;-)
If it does not have a big transformer in it is an inverter.
Inverters turn whatever you feed them into a high frequency square
wave (20kz or more) them get the voltage they want with a tiny little
transformer.
That can be up or down.


Switching power supply.

Problem is, some converters are now based on switching power supplies.
Most of the small, inexpensive, 3 stage battery chargers/maintainers use
them.




I'm having trouble distinguishing between converter and battery
charger.



For RV purposes, I think of it this way:

If you are at a campsite or whatever and connected to shore power
the converter is charging your house battery but is also supplying
12vdc to all your lights and other 12vdc devices. I suppose you
could say they are really all running off the house battery and
the converter is simultaneously charging it. But, you could remove
the house battery and the lights will still work.

Does the truck charge the house battery when it is running? If not,
why not?


Yes, I think it does.. . Come to think of it I am sure it does.
Even on the little travel trailer I just gave to my daughter and husband
the "house" battery on the trailer was being charged when my truck was
running. One of the pins on the 7 pin trailer plug on the truck
supplies the charging voltage.

I had a class C RV ... the previously mentioned Chinook Glacier. It had
two batteries ... one was the "engine" battery and the other being the
"house" battery. It had a sensing circuit that directed the alternator
charging output to the battery that had the lowest voltage whenever the
rig was running.

I suspect something like that is also used in diesel pickups that have
two batteries.

To expand on that, I used to have an older Winnebago class A that worked differently. The chassis battery was by default used and charged by the motor, and the house battery only charged by shore power or when the gen was running. There was, however, a pair of switches up on the dash that let you connect the house battery to the chassis for charging while running, and for emergency cranking. No automatic sensing on it.

On one trip we were running in the rain on the Penn Turnpike. I noticed the lights getting dimmer and the wiper running slower, and realized I had a problem. The alternator had died. I pulled over and fired up the generator, plugged in a battery charger I had brought along and hooked that up to the chassis battery without ever shutting down. That got me to the next exit that had a repair shop. They were busy but agreed to get me parts and let me use their parking lot for doing the repair. I swapped out the alternator and we were back on the road.