Accessory socket

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Tan

MB Enthusiast
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Joined
Oct 2, 2002
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2,901
Location
Woodford Green
Car
W140 S-Class, Porsche Cayenne and Porsche Boxster
Hi

Does a W140 S-Class have any accessory sockets that remain live when the ignition is off?

I have a Porsche badged CTEK battery conditioner that I would like to use on the S, but my unit only has a cigarette plug on it.

If there is no live accessory socket, can one of the ones that bolts straight onto the car battery be used?


Thanks

Tan




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Last edited:
No and yes. Trickle charging is fine directly onto battery.
 
Just to add to the above , you can buy better connectors than a cig lighter plug and socket .

CTEK and others will supply them for this purpose ; just cut the cig lighter plug off your unit and fit the other connector .
 
Thanks, not keen on chopping off the existing connector as firstly the unit is still under warranty and secondly I use it on two of our Porsches and they charge via the accessory sockets.

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