Salvo wrote:
The regulator also senses the chassis battery which may be full.
Sal
Though in this case you MIGHT be right, there is a bit more.
I have, recently, read about a "Smart alternator" (3-stage regulator) that can in fact sense battery voltage and switch to float when it's full up.. But it is new, and very expensive and it is **NOT** standard equipment on anything.
Most alternators put out the same voltage, 100% of the time, so long as you are not at full idle (They may drop at idle, epically if you have lights and HEVAC on (heating, ventelation, air conditioning).
Likewise the brakes on the trailer (if you are at full idle, you are either parked or have foot on brake normally).
So that does not really apply here.
And, when you have two batteries in parallel,, I often hear how the charging system will sense when the smaller one is full and shut down so the larger one won't fill... This is very simply IMPOSSIBLE with batteries side by side in a RV.
however in this case. the issue is not battery size, It's not "Sensing when one is full" it's the wire that connects the two. It is TOO SMALL in most cases so only a very slow charge gets pushed into the trailer.
I have problems with that on my motor home and the wire is shorter than his truck.. (Though in fairness I found the problem was a bad battery. The GC-2's finally gave up the ghose. They are "offline" just now awaiting repalcement and the G-29's are hauling the load quite nicely.. 8.5 years, not too bad 7-10 is average for this brand).
Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times