Trickle Charger
08-27-2018, 09:18 PM
#1
Trickle Charger
Anyone using a trickle charger on a 2014 and up S63? If so, please let me know what you have, I'd like to put my 2015 on one when not in use. Thanks-
08-28-2018, 07:33 PM
#2
Super Member
I bought a CTEK for my 2009 SL600. Used it a few times then just replaced both batteries. The CTEK worked fine. With the new batteries I can now leave the 2009 SL sit unused for close to a month, it starts right up, all accessories on line.
As for the W222, I have never had a need for a trickle charger and my 2015 S65 frequently sits 3 weeks between uses with never an issue. I imagine the CTEK would work if needed but there is not a convenient connection point on the S. The only approved location is inconvenient under the hood.
What I found more useful was a Schumacher 100A speed charger/starter. It was easier to just use that on the SL when the battery dropped below 25% charge before I replaced the batteries. Just took 5 minutes and the car would start w/o the charger. It would start immediately with it. Again, in 3 years I have never had a low battery on the S despite letting it sit unused for close to a month.
As for the W222, I have never had a need for a trickle charger and my 2015 S65 frequently sits 3 weeks between uses with never an issue. I imagine the CTEK would work if needed but there is not a convenient connection point on the S. The only approved location is inconvenient under the hood.
What I found more useful was a Schumacher 100A speed charger/starter. It was easier to just use that on the SL when the battery dropped below 25% charge before I replaced the batteries. Just took 5 minutes and the car would start w/o the charger. It would start immediately with it. Again, in 3 years I have never had a low battery on the S despite letting it sit unused for close to a month.
