altenator
My MH has VDO gauge, it is reading just a little over 11 volt while running , today i started my coach and the battery read 11.7 volts, once i started the engine it dropped to 11.4 , i started the gen...
Forum Discussion
All coaches charge both chassis and house batteries from the alternator (if working of course).
Many do NOT charge the chassis battery from the converter, charger or inverter charger (powered by either generator or shore power).
While plugged in or on generator, use a digital voltmeter to check voltage at each battery bank. That will tell you instantly how yours is wired.
Now, if yours is not set up to charge the chassis battery, a safe "workaround" is to:
1. If you have a constant duty solenoid/switch that can remain on for "battery combine"/"battery boost", leave it on.
2. If it is not a constant duty solenoid/momentary switch, locate the boost solenoid. Label (tape, zip ties, etc) all the wires on one large lug. Move them to the other large lug. Electrically, everything will work with generator powering the converter, converter charging the house bank and the "rewired" solenoid charging the chassis battery. Be sure to return the wires to their original position when you reach your destination.
Many do NOT charge the chassis battery from the converter, charger or inverter charger (powered by either generator or shore power).
While plugged in or on generator, use a digital voltmeter to check voltage at each battery bank. That will tell you instantly how yours is wired.
Now, if yours is not set up to charge the chassis battery, a safe "workaround" is to:
1. If you have a constant duty solenoid/switch that can remain on for "battery combine"/"battery boost", leave it on.
2. If it is not a constant duty solenoid/momentary switch, locate the boost solenoid. Label (tape, zip ties, etc) all the wires on one large lug. Move them to the other large lug. Electrically, everything will work with generator powering the converter, converter charging the house bank and the "rewired" solenoid charging the chassis battery. Be sure to return the wires to their original position when you reach your destination.
