I think what I am referring to is also a trickle charger. It just keeps a charge on the battery and turns itself off and on as needed to avoid overcharging.
I left the battery in the car to start it with some regularity, but maybe a better idea would be to remove the battery and re-install as I need to start it? I was thinking of starting it once a week to let it run and at the time was not enthusiastic about putting the battery back in every week. But if this is the safest route, then that is what I'll do.
Thanks for your help!
01 S55 AMG Silver
01 CLK55 AMG Silver