I have ordered the CTEK.
Battery trickle charger
Thread Starter
Junior Member
Joined: Nov 2014
Posts: 38
Likes: 1
2015 S550 4 Matic
Battery trickle charger
My 2015 S550 will be unused for about 3 weeks and I am thinking of getting a trickle charger to keep the battery from going dead. I see there is an OEM Mercedes-branded unit that sells for about $160. There is also a CTEK charger which looks very very similar that retails for about $70. My suspicion is that CTEK actually makes the MB-branded one. Has anyone on this forum used the CTEK charger? Should I go with the MB-branded one or the CTEK?
Super Member
Joined: Dec 2015
Posts: 812
Likes: 86
From: Springboro, OH
16 GLC 19 Volvo XC40 06Corvette Z06
Don't spend your hard earned money on the M-B branded tender. As stated above its very likely made by CTEK.
I've been using a CTEK for about four years and am completely satisfied.
My suggestion, buy the CTEK.
I've been using a CTEK for about four years and am completely satisfied.
My suggestion, buy the CTEK.
Senior Member
Joined: Dec 2003
Posts: 336
Likes: 19
Another vote for the CTEK.
I used to have a Porsche Batter Charge for my GT3 (I know, I know.)
And then I bought a CTEK Batter Charger (from Amazon) for my Mercedes.
I compared the two, and found they were virtually the same except for the logo, and the CTEK was half the price.
I used to have a Porsche Batter Charge for my GT3 (I know, I know.)
And then I bought a CTEK Batter Charger (from Amazon) for my Mercedes.
I compared the two, and found they were virtually the same except for the logo, and the CTEK was half the price.
Senior Member
Joined: Feb 2014
Posts: 342
Likes: 71
From: NJ
E300-4matic
The CTEK
I've been using the CTEK model which I've had for the past 10+ years and it works fine and it's $50 less when I bought it. Even if you're not going to drive your car for 4+ days hook up the trickle charger, it'll add a year or two to your battery. It's worth it.
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Joined: Feb 2014
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From: NJ
E300-4matic
Colleen Riley Who?
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1) Songbird
2) Spare me a little
3) Silver Springs
4) Landslide
5) I don't want to know
If you lend an ear you'll be blown away!
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