Maintain your battery with Ctek you must.
Sorry, but the Yoda reference from the oil filter thread got to me.
I use this one:
https://www.batterystuff.com/battery-chargers/12-volt/5-10amps/ctek-56-353.html?gclid=EAIaIQobChMI6Oeu2dyW1wIVxVt-Ch3IUAYfEAYYASABEgJe4PD_BwE
Been plugged in for months at a time.
Porsche puts their name on these. Good enough.
https://www.********************************************** ******.com/product/95504490054.html?gclid=EAIaIQobChMIvJXdgd2W1wIVxo5-Ch2UBQtXEAQYASABEgI91PD_BwE
The one I own, in the first post, is an upgrade over the lower spec Porsche branded one in the second post.