Out with the OEM and ....

[RustyWCA]

Yes you can use a step down, this van has kinetik 3 post battery's, one of the posts is a 12 volt one so the vans ran off it

[the1onlyteagro]

hows do you run the rest of the vehicle wont an 18 volt alt short out the rest of your vans factory electrical components?

[thaostrich]

@the1onlyteagro You use a voltage stepdown module, like you can get from XS Power.

[MrBeatking74]

thats wzup