CTEK MXT 4.0 User Manual

24V/4A

MXT 4.0

MANUAL

CONGRATULATIONS

to the purchase of your new professional switch mode battery charger.
This charger is included in a series of professional chargers from CTEK SWEDEN AB and
represents the latest technology in battery charging.

CTEK COMFORT CONNECT

CHARGE CABLE

CTEK COMFORT CONNECT – eyelet M8

*Supply p lugs may dif fer to suit yo ur wall socket.

SUPPLY PLUG*

CTEK COMFORT CONNECT – clamp

MAINS CABLE

CHARGING

1. Connect the charger to the battery.

2. Connect the charger to the wall socket. The power lamp will indicate that the mains
cable is connected to the wall socket. The error lamp will indicate if the battery clamps
are incorrectly connected. The reverse polarity protection will ensure that the battery
or charger will not be damaged.

3. Press the MODE-button to select charging program.

4. Follow the indication lamps through the charging process.
The battery is ready to start the engine when
The battery is fully charged when is lit.

5. Stop charging at any time by disconnecting the mains cable from the wall socket.

ABSORPTION, READY TO USE
ANALYSE

DESULPHATION

SOFT START BULK

ERROR LAMP

MODE-

BUTTON

POWER

LAMP

NORMAL

BATTERY

PROGRAM

MODE

NORMAL

AGM

BATTERY

PROGRAM

AGM

RECOND

RECOND

PROGRAM

is lit.

FLOAT, FULLY CHARGED
PULSE, MAINTENANCE CHARGING

RECOND

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CHARGING PROGRAMS

MXT 4.0

Settings are made by pressing the MODE-button. After about two seconds the charger
activates the selected program. The selected program will be restarted next time the
charger is connected.

The table explains the different Charging Programs:

Program

NORMAL

AGM

RECOND

Battery

Size (Ah)

8–250Ah

8–250Ah

8–250Ah

Explanation Temp range

Normal battery program

28,8V/4A. Use for WET batteries,
Ca/Ca, MF and for most GEL batteries

AGM battery program 29,4V/4A
Use for AGM batteries.

Recond program 31.4V/1.0A
Use to return energy to the empty
WET and Ca/Ca batteries. Recond
your battery once per year and after
deep dischare to maximise lifetime and
capacity. The Recond program adds the
Recond step to the normal battery
program. Frequent use of the Recond
program may cause water loss in the
batteries and reduce service life of
electronics. Contact your vehicle and
battery supplier for advice.

+5°C–+5 0°C

(41ºF–122ºF)

-20°C–+5°C

(-4ºF–41ºF)

-20°C–+5 0°C

(-4ºF–122ºF)

ERROR LAMP

If the error lamp is lit, check the following:

1. Is the chargers positive lead connected to the
batterys positive pole?

2. Is the charger connected to a 24V battery?

3. The clamps are short circuited?

4. Has charging been interrupted in

Restart the charger by pressing the MODE-button. If charging
is still being interrupted, the battery...

...is seriosly sulphated and may need to be replaced.
...can not accept charge and may need to be replaced.
...can not keep charge and may need to be replaced.

READY TO USE

The table shows the estimated time for empty battery to 80% charge

or ?

BATTERY SIZE (Ah)

10Ah
20Ah
50Ah

100Ah

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TIME TO 80% CHARGED

2h

4h
10h
20h