Dead Batteries
I have an Airstream Interstate 2014. It has been in storage for 3 months and the batteries are all dead. The ignition key will not turn indicating the chassis battery is dead. I have connected the ...
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Your shore power will not charge the chassis battery but should charge the auxiliary house battery. To charge your chassis battery you need a portable charger to connect to the positive connection which you can see under the hood that looks like a red button plunger and negative to your frame. You can also jump start it as well that way with jumper cables. Your chassis battery is under the driver's floor but you do not connect to it that way to charge, so there is no reason to access it. The information is in your Mercedes Benz Sprinter owners manual.
Edit. Should have read closer. If a service can't get to it then jumper cables are out. My advice to get a portable charger still stands since you can get to it with an electrical cord with 115AC. I've gone through this and it works. 3 months is a long time to let it sit and the battery will most likely drain enough not to start but that does not mean it is dead and you need a new battery. It does mean that such abuse will shorten the eventual life of the battery.
Edit. Should have read closer. If a service can't get to it then jumper cables are out. My advice to get a portable charger still stands since you can get to it with an electrical cord with 115AC. I've gone through this and it works. 3 months is a long time to let it sit and the battery will most likely drain enough not to start but that does not mean it is dead and you need a new battery. It does mean that such abuse will shorten the eventual life of the battery.
