Dead Batteries
I just purchased a new 2015 Newmar Mountain Aire 4501 in Oct. I keep it in a storage lot. After about 3 weeks I went to take it for a run. All the batteries were dead. I did put the house battery swit...
Forum Discussion
On a Newmar, the coach batteries can go dead with the Battery disconnect OFF. BUT, unless Newmar has changed the design from 20 years ago, they installed a small 10 watt solar charger to keep the chassis batteries charged from the small drain from the computer systems on the Diesel chassis. Do you not have that small solar charger or did you have the RV stored INSIDE or under an Awning? Newmar usually has the Dash radio and the LP/CO detector direct wired to the Coach batteries bypassing the disconnect. As another stated, it is BEST to disconnect the Ground cables from both sets of batteries to assure that they will not drain. Also, you have a INVERTER/CHARGER and they are NOT wired to a disconnect system. They are wired DIRECT from the Coach batteries to the Inverter. IF the Inverter was ON, then when you disconnected the batteries the Inverter stayed on. My experience with customers with Inverter/Chargers(especially all electric motorhomes) is the Inverter remote is out of sight and out of mind and they forget to shut it OFF when storing or bring it in for service. Doug
