This has been the year for batteries. We have an old Cadillac that we inherited which has eaten two batteries in the course of two years. Walmart exchanged them. Then my Ford ate it's 2 year old battery. Again, Walmart gave us a new one. Now, our Sprinter will not take a charge and reads only 6 volts.
MB replaced the chassis battery in 2018 under warranty when we purchased the coach. 2 years later, the battery refuses to hold a charge. What kind of warranty does MB have for their batteries? I couldn't find a date stamp on the battery core.
We picked up a new one at O'Riley Auto Parts which has a 3 year warranty. At least if it goes out we won't have to drive 50 miles each way to find out what MB won't cover.