CTEK MXS 25 battery charger. mod

Discussion in 'Tech/Mech General' started by Techno, Nov 4, 2015.

  1. Techno

    Techno Funster Life Member

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    This charger is not meant for permanent installation so it only comes with Croc clips on. This is not always ideal having to get to the battery terminals especially when opposite corners of a 500ah bank.
    I fitted Anderson connectors to both my battery sets for easy connection of a high power air compressor so I decided these will do for the battery charger too.
    Example
    [​IMG]

    Charger lead modified for both options £5.99
    [​IMG]
     
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  2. TheCaller

    TheCaller Funster

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    CTEK have their Comfort Connect range of connectors to do a similar thing. Most of their chargers are now supplied with the Comfort connector ready installed in the output lead & at least one termination set - usually the croc clips. I think mine came with the croc clips & the M6 eyelet set.

    No good in your case, because you had the Anderson connectors there already, but very useful for those who want to use the charger to charge batteries in-situ in several vehicles - or just have a more secure but easy connection.
     
  3. Techno

    Techno Funster Life Member

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    Not the MXS 25 there is no such connector
    [​IMG]
     
    Last edited: Nov 4, 2015
  4. scotjimland

    scotjimland Funster Life Member

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    Is that the control rheostat under the connector ? ;) :LOL:

    tidy job.. (y)
     
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  5. Techno

    Techno Funster Life Member

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    Local temperature sensor Jim and not featured on the lesser CTEK chargers that @TheCaller alluded to
     
    Last edited: Nov 4, 2015
  6. Techno

    Techno Funster Life Member

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    Basically the MXS 25 is made for use at a workstation and the battery is brought to it for conditioning. A bench situation. There are no other connection options other than as supplied with crocs and temp sensor
     
  7. TheCaller

    TheCaller Funster

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    Which explains why no Comfort connector for that model. Do you use the temperature sensor or have you ditched it as part of the convenience of the Anderson connector?
     
  8. Techno

    Techno Funster Life Member

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    Yes I will use it. The connector is in the same compartment with both battery sets
    Connector being just out of shot on the right
    [​IMG]
     
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  9. Techno

    Techno Funster Life Member

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    The comfort connector cables are most likely of insufficient CSA too. This unit uses 10AWG
     
  10. Techno

    Techno Funster Life Member

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    Easy handle fitted £2.99
    image.jpeg
     
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  11. Techno

    Techno Funster Life Member

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    @GAVLAD
    This is my charger in use with the CBE one turned off.
    I simply unplug it and move it to the garage to charge the other battery bank
    image.jpeg image.jpeg
     
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  12. hilldweller

    hilldweller Funster Life Member

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    You know your problem, too damned tidy.
     
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  13. GAVLAD

    GAVLAD Funster

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    Roll on Chester! Will have a look and can then discuss best place to install.

    I'm undecided about an inverter but do need some additional sockets.
     
  14. GAVLAD

    GAVLAD Funster

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    But don't discuss in front of the Missus :LOL:
     
  15. Sidney

    Sidney Funster

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    @Techno I need to understand what you are doing here as I want to build a setup where I can be off hookup for a longer periods. I know you're the champion of this electrickery lark and trust your judgement on how to do this. So...

    You appear to have 4 batteries in one location and 2 in another?
    Are they all wired together giving you 600(ish) ah?
    Are they all fed by a solar array and single soar charge controller?
    I know you have a sizeable inverter (or two) do you run this from the larger bank?
    Is the Rapido factory fit charger and power supply still in use?

    Tell me do :)
     
  16. Techno

    Techno Funster Life Member

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    8 125ah batteries in two banks of four
    Bank one does 12 volts only and is charged by b2b CTEK charger and any surplus solar
    Bank two does 230 volts only and supported by 300 watt solar and CTEK charger
    Banks can be combined if it suits
    If the batteries are not much depleted I leave the CBE chargers on which are 16 amp. If they've had a hard time I use the CTEK charger 25 amp instead
     
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  17. Sidney

    Sidney Funster

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    Okay got it. Did you put in a larger alternator?
     
  18. Techno

    Techno Funster Life Member

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    original
    [​IMG]
     
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  19. Figaro

    Figaro Funster

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    What impact having all this extra kit on board does it have on your payload ?
     
  20. Techno

    Techno Funster Life Member

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    For me personally none
     
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