Ctek charger for 512TR | FerrariChat

Ctek charger for 512TR

Discussion in 'Boxers/TR/M' started by MM355, Sep 6, 2021.

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  1. MM355

    MM355 Formula 3

    Apr 7, 2008
    1,151
    GMT + 3
    Hello,

    I have had my 512TR for 5 years and I usually keep the kill switch on, I have tried starting it last time after 6 months the battery is dead.

    What do you think of installing a ctek charger whilst keeping my kill switch on? I mean the "factory power terminal" on the right fender side top of the battery.

    Never tried Ctek on older cars, only on modern cars which work well.

    Best regards,
     
  2. awatkins

    awatkins Formula Junior

    Apr 10, 2005
    396
    SFO Peninsula
    Full Name:
    Alan Watkins
    That’s how I’ve kept my 512TR’s battery alive for the last five years or so.
     
  3. kartboy1234

    kartboy1234 Formula Junior

    Nov 10, 2014
    694
    Palos Verdes, CA
    Full Name:
    Michael L
    It won't cause any problems, I have mine wired to the battery then the plug is run to where the horns are so just pop the hood and plug that in

    Sent from my GM1917 using Tapatalk
     
  4. MM355

    MM355 Formula 3

    Apr 7, 2008
    1,151
    GMT + 3
    Thank you for your prompt replies and kind feedback.
     
  5. fridolin_pt

    fridolin_pt Karting

    Mar 25, 2008
    162
    Germany NRW
    Full Name:
    Fritz
    Works fine. Plug and play.
     
  6. Tifoso1

    Tifoso1 F1 Rookie

    Nov 18, 2003
    2,598
    Pacific NW
    Full Name:
    Anthony C.
    Do you have the negative lead hooked up to the battery or to the chassis/negative ground?
     
  7. kartboy1234

    kartboy1234 Formula Junior

    Nov 10, 2014
    694
    Palos Verdes, CA
    Full Name:
    Michael L
    Hooked to the chassis ground if I remember correctly but I can't 100% remember.

    Sent from my GM1917 using Tapatalk
     
  8. turbo-joe

    turbo-joe F1 Veteran

    Apr 6, 2008
    8,868
    southwest germany and thailand
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    romano schwabel
    why to the chassis ground? when the main switch is off then the battery will not be charged
     
  9. Tifoso1

    Tifoso1 F1 Rookie

    Nov 18, 2003
    2,598
    Pacific NW
    Full Name:
    Anthony C.
    CTEK’s recommendation. Please forward to the 40 sec. time mark.

     

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  10. turbo-joe

    turbo-joe F1 Veteran

    Apr 6, 2008
    8,868
    southwest germany and thailand
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    romano schwabel
    what is special there at 40 sec?
    if the main switch in the car is "off" then the battery will not get charged when you put the negative charger wire to ground somewhere on the chassis.
     
  11. Tifoso1

    Tifoso1 F1 Rookie

    Nov 18, 2003
    2,598
    Pacific NW
    Full Name:
    Anthony C.
    So if the switch is not turned off every time the charger is plugged in, the negative lead can and needs to go to the chassis and not the negative terminal on the battery, is that correct?
     
  12. vraa

    vraa F1 Rookie
    Rossa Subscribed

    Oct 31, 2003
    3,495
    Texas
    Full Name:
    Mr. A
    You can double check with a cheap multimeter when switch is off, I don't have a car with a switch, but I connect my leads to the terminals itself, noco and ctek both.

    https://no.co/support/gen-connecting-to-the-battery
     
    Tifoso1 likes this.
  13. turbo-joe

    turbo-joe F1 Veteran

    Apr 6, 2008
    8,868
    southwest germany and thailand
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    romano schwabel
    yes, this is correct. but only when the main switch is turned on

    but the negative lead not need to go to the chassis. always better is when connected to the battery terminals because of may be bad connection to the chassis or from the chassis to the battery.
     
    vraa and Tifoso1 like this.
  14. Shark01

    Shark01 F1 Veteran

    Jun 25, 2005
    5,687
    Works great on older cars, I've had a 3300 working on various older cars for 15+ years and recently bought a MXS 5 because the thing has to die eventually.
     
  15. Tifoso1

    Tifoso1 F1 Rookie

    Nov 18, 2003
    2,598
    Pacific NW
    Full Name:
    Anthony C.
    So on a car without a battery switch, and assuming that all the connections are healthy and functional, the "safest" method of installing a charger is to use the the vehicle ground instead of the negative terminal. Is this a fair statement?
     
  16. turbo-joe

    turbo-joe F1 Veteran

    Apr 6, 2008
    8,868
    southwest germany and thailand
    Full Name:
    romano schwabel
    not really. best is always to connect directly the the battery. but if all is ok then you can also go to ground somewhere at the chassis
     
    vraa and Tifoso1 like this.
  17. Tifoso1

    Tifoso1 F1 Rookie

    Nov 18, 2003
    2,598
    Pacific NW
    Full Name:
    Anthony C.
    Thank you.
     

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