I am going away for three weeks and would like to know the best way to trickle charge my 2007 Mercedes CL600.
Feb 9, 2018 @ 13:15 pm
Three weeks is not that long. Technically if your Mercedes does not have any issues and a good battery, it should start right up in three weeks.
Still setting up a battery trickle charger is a great idea.
If it was my car I would get a battery maintanier that provides around 2 to 6 Amps and connect it to the jump starting terminal located in the engine bay.
The positive is covered with a red cap. The negative is a coper post but you can use any bare metal on your car.
This will be more than enough to keep your Mercedes battery in top shape.
Feb 9, 2018 @ 19:18 pm
Thank you very much for your reply. Just to clarify do I only apply the trickle charger to the starter battery under the hood?
Feb 10, 2018 @ 20:14 pm
Yes, your main concern should be the starting battery.
When you get back connect the auxiliary battery to the charger for a few hours as well. Next to the main battery should be a plastic cover. If you remove that, there should be a brass pin which is the positive terminal for the auxiliary battery. That's how it is setup on the W221 and I think the CL should be the same.