Community Alumni
Jan 19, 2018Dittos on the battery disconnect. I have a 'Battery Minder' that I use to maintain all my batteries. The thing that differentiates the Battery Minder from a typical trickle charger is the De-sulfation maintenance mode. It is not unique, but I would recommend any charger that has this feature. I have been able to bring batteries back from near death. I use it on my car batteries, boat batteries and on the RV. Getting to the Sprinter battery is a chore, so just connected the Battery Minder to the positive post and ground under the hood. No adverse effects to the Sprinter electronics. When I sold my 2009 Sprinter, it had a ten year old factory battery in perfect condition; tested every year. My 2018 Navion has some sort of problem that causes the chassis battery to go dead in a week to 10 days. I have a plan for this. The battery minder has a quick connect feature, so I will install a permanent connection from the battery posts to a convenient location. Disconnecting the battery ground under the dash will isolate the battery and allow the Battery Minder to do it's thing without any current draw.
