Chassis Battery Charging

[cmillsap]

(02-22-2019 20:24)cubeman Wrote:  Seems like I stumbled upon this recently . So like David I have a outdated still working Guest Charge Pro . But I wonder if like David mine will shut off automatically when the ignition is on . I guess I could go outside to see but it is cold out ,lol

Chuck I'm surprised that the marathon did not design for this on your model year . What were they thinking ? Maybe the coach would not be parked ?

Al,

The theory is that a Chassis Battery Charger is not needed if the coach is used frequently. Normal use should suffice to keep the batteries charged. Just like in our automobiles. However, our coaches tend to sit for long periods and develop more parasitic drains causing the chassis batteries to become discharged. Your coach may not have a “smart” charger which means you must manually charge you batteries. Sometimes, a dumb charger is wired to disconnect when the ignition is turned on and some are not depending on the converter. My "smart" charger has diodes built into the battery leads to prevent back charging when the S60 is running.
Since my coach sits a lot, I installed a “smart” Charger. If you decide to install one be sure to get a charger that can charge 2 separate banks and 12V/24V @10A. Also, keeping your chassis batteries fully charged (float) will extend their useful life.