Male Electrical plug by driver door

[Wireless Mike]

I am new owner of used Seneca & have 2 questions.
1. If i plug in my coach electricity, it will charge house batteries. Is there circuitry to charge chassis batteries located below the drivers door?

2. Mine does not. So bought a Battery Minder & connected to chassis batteries. Then noted a flip cover below drivers door which has a 15amp male plug in it. I ran extension cord & measured voltage on batteries, saw no change. So it does not feed a functional battery charger. Anyone know what this is for?

Will Google it more tonight.

[Grumpy]

Originally Posted by Wireless Mike

I am new owner of used Seneca & have 2 questions.
1. If i plug in my coach electricity, it will charge house batteries. Is there circuitry to charge chassis batteries located below the drivers door?

2. Mine does not. So bought a Battery Minder & connected to chassis batteries. Then noted a flip cover below drivers door which has a 15amp male plug in it. I ran extension cord & measured voltage on batteries, saw no change. So it does not feed a functional battery charger. Anyone know what this is for?

Will Google it more tonight.

What year? Kodiak chassis? The plug by the door is for the block heater in the winter. The battery isolator to charge coach batteties is in the battery compartment by the house batteries.

[Rustynuts]

On the Freightliner chassis the plug under the drivers door is the engine block heater and has nothing to do with charging. When you plug into shore power, the coach batteries and chassis batteries are charged through the converter, even with the main battery disconnect by the entry door turned off…..that is if everything is working correctly.

[JoeyNick]

Originally Posted by Wireless Mike

... noted a flip cover below drivers door which has a 15amp male plug in it. I ran extension cord & measured voltage on batteries, saw no change. So it does not feed a functional battery charger. Anyone know what this is for?

Engine block heater. Block heater generally won't come on until the ambient temperature dips below 32 degrees Farenheit, even if plugged in.

[Wireless Mike]

Thanks for the replies & info.
Yes, mine is a Frieghtliner M2 chassis & will endeavor to do better providing that info up front.
After reading another post about outlets & equipment being mounted high in the bins, I looked up whilst reorganizing a bin next to batteries & found........my inverter. So that's where it is!!!
I Will go look later this week during daylight to see if i can find the converter & associated circuitry.

[Grumpy]

Originally Posted by Wireless Mike

I Will go look later this week during daylight to see if i can find the converter & associated circuitry.

That should be incorporated into the breaker/fuse panel.

[RVermont]

The converter is in the power distribution panel which is most likely in your bedroom as grumpy mentioned. This unit provides power to the coach 12vdc circuitry which is linked to the coach power system through a BIM device located in the area of the coach batteries. The battery isolation module monitors both sets of batteries and allows power to flow from the coach to the chassis or chassis to coach circuits. Depending on the year of your unit there is also a 100 or 150 amp fuse mounted on the top of the house batteries that must be closed to allow power to or from the chassis batteries. If this is open due to a short or overage some items on the coach will not work and BIM will not operate.