Also use transport mode when car sits idle for more than a week. Shuts off everything after 24hours. The remote will not unlock the doors, only way to unlock the car is with the key. Since I use transport mode regularly, have never needed to charge the battery.Best advice if your SS is not a daily, keep the battery (whichever one you choose) on a proper maintainer as much as possible. My 2015 era OE battery (in my early production 2016 SS) is still going strong, in Colorado no less. It does hibernate in the winter and is not a daily driver, so that certainly is a big factor.
If you go AGM, you need a maintainer that is spec’d for AGM batteries.
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