Chassis batteries needed charging.
I noticed that the chassis batteries were down to around 12.0 volts. The coach batteries are maintained well thanks to the inverter/charger system. I connected the chassis and coach batteries with a j...
Forum Discussion
maybe..maybe not
some RVs have the "BIRD" system which will charge both sets from what ever source is available, giving priority to primary set of that source
BIRD = Bi-Directional Relay system
when charging from shore or generator it charges the house first then includes the chassis, after the house reaches 13.2
when charging from alternator it charges the chassis first, then the house
you may have a BIRD that has malfunctioned
or you might not have a dual control system BIRD at all
not ALL RVs have this system, mine does not
some RVs have the "BIRD" system which will charge both sets from what ever source is available, giving priority to primary set of that source
BIRD = Bi-Directional Relay system
when charging from shore or generator it charges the house first then includes the chassis, after the house reaches 13.2
when charging from alternator it charges the chassis first, then the house
you may have a BIRD that has malfunctioned
or you might not have a dual control system BIRD at all
not ALL RVs have this system, mine does not
