Managing battery for extended period of non-use of the car

Asked by May 06, 2019 at 07:49 AM about the 2013 Volkswagen Passat

Question type: Maintenance & Repair

I owned a 2013 Passat. I will be away for a long period (more than a month) and the car will be at the car park.
Question: should I (a) disconnect the battery and run the risk of instrumentation issue during restart or (b) leave it as is and then do a jump start when I return (by which time battery could be dead and may require a replacement, and still messes up the instrumentation)? Is there another solution?

2 Answers


Cars today have systems that run while the car is off, and that can drain a battery in less than a month, so you and everyone else should be concerned. Not knowing what kind of car park you'll be using, check with management to see if they have any type of battery service there. They might allow you to park near a power outlet where you could add a battery tender. Put the tender near the battery and close the hood so it won't be stolen. Or, use a memory saver inside the car; it comes with it's own battery and should last for more than a month, so when you return, if the battery is drained, you can jump it without memory loss.

1 people found this helpful.

Thank you. This is the solution that I am looking for. I have a power supply for tender so no issue.Was not aware of such a device. Best solution and thank you again.

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