Engine charging of coach batteries
I have a general question about how the (Class A) coach batteries are charged from the engine alternator while the engine is running. I am not at all sure that they even are so charged, as I cannot...
Forum Discussion
Effy wrote:
Yes, I checked, no it did not charge them. Brought it to my dealer's attention and they verified.
Seems to disagree with the 2012 Thor Ace owners manual (p 78):
Battery Isolator Controller
When the motor home engine is not running, the chassis and auxiliary batteries are kept separated from each other within the electrical system through the use of a battery isolating controller. The controller prevents the auxiliary batteries from discharging the chassis battery when the motor home is parked.
Some additional characteristics of the isolator system include:
1. Delays connecting the auxiliary batteries to the charging system for approximately 15 seconds, to allow the alternator time to reach full charging ability.
2. After this initial time delay, if the alternator has come up to full charging ability, (13.2 Volts) the isolator will electrically connect the
auxiliary and chassis batteries together for charging.
3. If the charging voltage drops below 13.2 Volts for a period of 4 seconds due to low idle speed and or excessive load, the isolator will disconnect the auxiliary batteries until the voltage returns to a level of 13.2 volts for about 10 seconds.
4. In the event the automotive battery is discharged, it will be necessary to press and hold the Start Switch located in the dash
