High Battery Light

My guess is: Perfectly normal probably.

When first started, the battery voltage has had a chance to drop a bit and the charging system is ramping up to it's highest charging voltage for a short time........which would be too high if it persisted very long.

Sounds like the starting batteries are weak and alternator is charging harder/higher voltage. As long as it goes out I would not worry about it.

I don't even know what a high battery light is.

Are you talking about the idiot lights on your tank level indicator?
If so it is meaningless.
If you want to know battery levels, get a voltmeter.

We also have a 'high voltage' battery light. I'm not exactly sure what causes it but I would think it could be a bad voltage regulator or something related to the chassis battery charger (?). Anyway, there is a reason for it and should be checked out.

Good luck,
MM.

When you first start a cold engine the system voltage will increase to quickly recharge the battery. The voltage is even higher if it's cold out. Because of this, I would not be concerned about an indicator that shows higher voltage for a short time.
I would install a real volt meter to know what's going on though. Even a cheapo digital that plugs into a lighter will do.

Is your friend ALSO starting and running the Genset at the same time? Doug

Have never seen a "High battery" light as standard. Do have one as an add on.

IS THIS a GM engine. GM alternators run a tad "hot" (high voltage) Ford not so much, not sure what Dodge uses..

Suggestion plug in a nice digital voltmeter and have your co-pilot make notes. Many auto parts places sell a nice plug in to the 12 volt acc outlet meter.

ok thanks for the replies, I will let him know what to check, do etc.
again thanks. anyone else that may have an idea of things to check, i will let him know that too.

Let me give you the right answer..this is NORMAL on a Monaco based chassis and this is a Safari Cheetah 2009...high voltage will happen if you start the motor while plugged into shore power...this was a known Monaco characteristic and it would go off once you unplugged shore power. If you are not plugged into shore power you should have system charge tested to ensure alternator and voltage regulator are OK..I used to like when voltage regulator was separate and it was an easy thing to replace...Now alternator has to be replace to replace voltage regulator. High voltage triggers at 14 volts....