CL-Class (W216) 2007-Present: CL 500, CL 600

Charge batteries with external charger Cl500 2007

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Old 12-24-2022, 07:51 AM
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Charge batteries with external charger Cl500 2007

Hello, I would like to know how I can charge the batteries, with a charger, without damaging anything. I have seen several terminals, but I don't know whether to connect to the starter battery, and thus charge both, or you have to charge them individually. Thank you! (attached photo from the internet, which is like my cl500 from 2007)
Old 12-24-2022, 05:58 PM
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2010 CL550
I’ve heard good things about this one, might even be recommended by Mercedes.

Amazon Amazon
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Old 12-24-2022, 07:09 PM
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Originally Posted by COUPCONNOISSEUR
I’ve heard good things about this one, might even be recommended by Mercedes.

https://www.amazon.com/gp/aw/d/B000F...KIKX0DER&psc=1
Thanks for your answer, but I wanted to say where do I connect the charger clamps to charge the two batteries (the one in the trunk and the one in the engine starter)
Old 12-24-2022, 08:07 PM
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Originally Posted by M273abc
Thanks for your answer, but I wanted to say where do I connect the charger clamps to charge the two batteries (the one in the trunk and the one in the engine starter)
apologies, I misunderstood.

Last edited by COUPCONNOISSEUR; 12-24-2022 at 10:29 PM.
Old 12-25-2022, 08:23 AM
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In your pic, there is a brass looking plain post under the cover you popped off. That is the positive for the battery behind the rear seat. If you look at the front of the passenger side shock tower, you will find a ground connection. That is where the negative cable connects.

You will need 2 of these, one connected to the start battery and the other connected to the two other connections:
Amazon Amazon

I leave my CL600 connected this way and I never have a starting or running issue. I also have 12 of my other cars connected to these chargers/maintainers as well as my tractor. They just work.

See ya

Last edited by PhoenixOp; 12-25-2022 at 08:25 AM.
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Old 12-25-2022, 09:20 AM
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Originally Posted by PhoenixOp
In your pic, there is a brass looking plain post under the cover you popped off. That is the positive for the battery behind the rear seat. If you look at the front of the passenger side shock tower, you will find a ground connection. That is where the negative cable connects.

You will need 2 of these, one connected to the start battery and the other connected to the two other connections: https://www.amazon.com/NOCO-GENIUS5-...dDbGljaz10cnVl

I leave my CL600 connected this way and I never have a starting or running issue. I also have 12 of my other cars connected to these chargers/maintainers as well as my tractor. They just work.

See ya
Thank you very much for answering, your answer has been very helpful. Now I can safely load it. regards!

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