RAM Promaster 3500 engine battery (2021 Roadtrek Zion Slumber)

[LawrenceSolomon]

I'm buying a battery tender to maintain the charge on the engine (not the house) battery for the 2021 RAM Promaster 3500 chassis. The battery tender (see NOCO - 5-Amp Smart Battery Charger - GENIUS5) requires me to select the type of battery it is. Is the engine battery a standard 12 Volt, an AGM 12 Volt, or a Lithium?

Thank you.

 

[Mkjeld76]

I have a 2019 MidWest Legend it's built on a 3500 chassis and it has a AGM 12v wasn't sure if you had gotten an answer

 

[Nik B Roadtrek Zion]

I'm buying a battery tender to maintain the charge on the engine (not the house) battery for the 2021 RAM Promaster 3500 chassis. The battery tender (see NOCO - 5-Amp Smart Battery Charger - GENIUS5) requires me to select the type of battery it is. Is the engine battery a standard 12 Volt, an AGM 12 Volt, or a Lithium?

Thank you.

Hi. I think RAM stocked with standard/ lead-acid batteries. But it possible to upgrade it with AGM. I don't think lithium batteries are good for engine starting purpose.