California John

And you do that BEFORE you plug it in! And when done, unplug first.

FirstBenz@62

thanks

bobtigerfan72

I have a 2022 SL55 that had battery issues last fall. For last 8 months I have kept keys in a faraday box about 30 feet from garage and double click to lock. No battery issues. I only use tender to recharge battery after driving a few short distances. Tender will take hours to get back to full charge after short trip even if tender was showing full charge when disconnected. Since using faraday box I have left car sitting in garage for up to two weeks without the tender and have had no battery warnings. Only time recently that I had a battery alarm on app was when I took to dealer for annual maintenance and they let car sit with key fob in car. They returned car charged and I drove it home 40 miles. No issues since. Faraday box on Amazon about $15. Hope this helps.