2011 S550 4MATIC CONSTANT DRAIN ON BATTERY
Thanks I'll give it a try
The S-Class is so loaded with electronics and safety features that are active 24/7.....its always a big drain on the battery. Get a 12V battery tender (you get it in all auto stores for 20-30 bucks), and hook it up to the terminals if the car will sit longer than a week or two. If you let the battery get drained below a certain charge too many times, you will kill it eventually. Take care.
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