Is it a battery and what I think is for?
Howdy all, In preparing our motorhome for an impending trip, I went under the chassis on a creeper looking for potential troubles yesterday. That was when I noticed, for the first time, what appear...
Forum Discussion
ron.dittmer wrote:
So...as I understand this, the purpose of this 2nd chassis battery is to power your chassis-related accessories like your in-dash stereo when the ignition key is in the accessory position, installed to avoid draining the engine-start battery?
In the case of Chevy Express cut-way chassis I believe that’s the general idea and the purpose, although I think the 2nd chassis battery is not used to power the in-dash stereo or any other cab installed equipment, which are all subject to the ignition switch cutoff, in ACC position, or in RAP(Retained Accessory Power) mode.
Referring specifically to my vehicle/MH, there are two cigarette lighter sockets (there is no built-in USB ports in the cab) and one 110VAC power outlet on the dashboard as DC/AC power sources. The 110VAC outlet is also switched like others mentioned above. But the two 12VDC sockets are always hot/on. While I have not disconnected either battery to verify, empirically I concluded that the two in-dash cigarette lighter sockets are the only ones connected to this 2nd battery, and the rest are still connected to the engine battery.
This arrangement may seem overkill, but for other (chassis built) applications, such as Shuttle bus or Ambulance/Emergency vehicle, perhaps they could find better use of this option/feature.
,
