CTEK PRO25S Service Manual

MANUAL

PRO25S

CONGRATULATIONS

on 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.

Read safety instruction

HOW TO CHARGE

1. Connect the charger to the battery.

Temperature sensor
The temperature sensor works automatically
and will adjust the voltage to the ambient
temperature. Place the temperature sensor
in the positive clamp or as the close to the
battery as possible.

–

+

For batter ies moun ted inside a ve hicle

1. Connec t the charger according to the
vehicles manual.

1 2

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.

2. Connect the charger to the wall socket.

3. Disconnect the charger from the wall socket
before disconnecting the battery.

4. Disconnect the black clamp before the red
clamp.

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 is lit.
The battery is fully charged when is lit.

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

ERROR

LAMP

MODE-

BUTTON

POWER

LAMP

NORMAL

BATTERY

PROGRAM

CHARGING

EMPTY

MODE

LITHIUM

PROGRAM

READY TO USE

FULLY CHARGED

RECONDSUPPLYNORMAL LITHIUM

SUPPLY

PROGRAM

RECOND

PROGRAM

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PRO25S

RECONDSUPPLYNORMAL LITHIUM

PRO25S

LEAD -ACID

CHARGING PROGRAMS

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 Explanation

NORMAL

RECOND

SUPPLY

Normal battery program 14.4V/25A. Only for lead-acid
batteries.

Recond program 15. 8V/1.5A
Use Recond to return energy to 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. Only for lead- acid batteries.

Supply program 13.6V/25A
Use as a 12V power supply or use for float maintenance charging when
100% capacity of the battery is required. The Supply program activates
the Float step without time or voltage limitation. The spark protection
on the battery charger is disabled during the SUPPLY program.

READY TO USE

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

BATTERY SIZE (Ah)

40Ah
100Ah
200Ah
300Ah

TIME TO 80% CHARGED

1.5h
3h
6h

16h

POWER LAMP

If the power lamp is lit with a:

1. STEADY LIGHT

The mains cable is connected to the wall socket.

2. FLASHING LIGHT:

The charger has entered the energy save mode. This happens if the
charger isn´t connected to the battery within 2 minutes or the battery
voltage is below 2V.

ERROR LAMP

If the error lamp is lit, check the following:

1. Is the chargers red clamp connected to the battery's
positive pole? Connect the charger according to the
vehicles manual.

2. Is the charger connected to a 12V battery?

3. Are the clamps short circuited?

4. Has charging been interrupted in or ?

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.

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