Battery switch under driver's seat

[sugarray40]

We have a 2019 3011 DS with a 2018 E450 chassis.

Anyone know what the battery switch under the driver's seat does? I read all the owner's manuals without finding an answer.

[ScottBrownstein]

Boost start?

[A32Deuce]

That is to connect the house batterys to the chassis battery to get you started if the chassis bat is dead.

[sugarray40]

Originally Posted by A32Deuce

That is to connect the house batterys to the chassis battery to get you started if the chassis bat is dead.

Ah, thanks for that.

[aldermanjb]

You can also use it to start the generator if the house batteries are dead. Works both ways. You have to hold it down.