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Charging battery - in-situ?

Discussion in 'Electrics, Vacuum, Ignition and ECU' started by jarvis, Jun 12, 2019.

  1. jarvis

    jarvis Senior Member

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    Your Mercedes:
    A250 (2016)
    I have a 2016 A Class. Nowadays it's used much less often and then it tends to be for short journeys. The start-stop (which I know is a sensitive beast) rarely works and this tells me the battery probably isn't getting the necessary charge.

    Is there a type of charger I can buy which I could use without disconnecting the battery? I would much rather this and don't want any bother with any resulting issues that might bring.

    Any help appreciated as I can imagine the battery letting me down at some point in the future.
     
  2. Naraic

    Naraic Moderator

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  3. OP
    jarvis

    jarvis Senior Member

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  4. MalcQV

    MalcQV Senior Member

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    Location:
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    Your Mercedes:
    Mercedes CLA200
    I use these on my BMW and Ferrari. I've been using these since 2004 and if you buy a Carcoon it comes with one.
    https://www.optimate.co.uk/

    However CTEK as mentioned above are another I would recommend. I believe Ferrari branded conditioners are CTEK.

    I did for a while use a cheaper Maypole conditioner which eventually gave up the ghost. Fortunately no problems occurred but as such I would not suggest a cheaper brand personally.
     
    jarvis likes this.
  5. OP
    jarvis

    jarvis Senior Member

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    Thanks - these look slightly cheaper so will read more. I definitely want to go on recommendation as Amazon, for example, has loads but not from brands I've heard of and I'm terrified I'd fry the car.
     
  6. Blobcat

    Blobcat Moderator

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    Your Mercedes:
    R171 SLK280 3.0, Land Rover 110 County SW
    I use optimates on the bike and Landy and they keep them in perfect condition
     
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  7. malcolm210

    malcolm210 Senior Member

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    ^+1 for CTEK 5, been using CTEK for years without any problems. Better to buy an acid glass mat compatible charger nowadays
     
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  8. OP
    jarvis

    jarvis Senior Member

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    Thanks.
    I just noticed that MB OEM chargers are CTEK so that's another tick for them.
     
  9. rorywquin

    rorywquin Senior Member

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    Your Mercedes:
    2017 SL400 AMG Line
    "Absorbent Glass Mat".

    I've been using a CTEK for about 10 years - water resistant, been left in the rain, dropped etc no problems.....MB/Porche/BMW et al sell chargers which are rebranded CTEK.

    My manual says to connect the charger to the jump start posts!
     
    Last edited: Jun 13, 2019
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  10. flowrider99

    flowrider99 Senior Member

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    Your Mercedes:
    SL500 (R230) / Audi S5
    CTEK chargers are great, I have an MXS 5.0 and a MXS 10.
     
  11. AnthonyUK

    AnthonyUK Senior Member

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    Your Mercedes:
    C240 estate 2002
    I fitted one of the CTEK quick release connectors so it is easy to do a quick top up.

    The CTEK 5.0 I have has an AGM setting but I don't know when this feature was added.
     
  12. MalcQV

    MalcQV Senior Member

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    The Accumate/Optimate I am totally confident with hence using it on my 360 which I really could not afford to fry :D You will get these cheaper than the CTEK.
     

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