2 • EN
INTRODUCTION
Congratulations on purchasing your new CTEK professional switch mode battery charger. This charger is part of a range
of professional battery chargers from CTEK SWEDEN AB. It represents the latest technology in battery charging with
charging and analysis in seven steps with temperature compensation.
Read this User Manual and follow the instruc-
tions carefully before using your new charger.
SAFETY
• The charger is designed for lead-acid batteries. Do not use the charger for any other purpose.
• Use safety glasses and turn your head away when connecting or disconnecting a battery.
• Battery acid is corrosive. Rinse immediately with water if acid comes into contact with skin or eyes. Seek medical
advice.
• Make sure that the cable is not pinched or in contact with warm surfaces or sharp edges.
• While charging, a battery can emit explosive gases, so it is important to avoid sparks in the immediate area.
• Always provide for proper ventilation during charging.
• Avoid covering the charger.
• Make sure that the electrical cable does not come into contact with water.
• Never charge a frozen battery.
• Never charge a damaged battery.
• Do not place the charger on the battery while charging.
• The electrical connection must fulfil the national heavy current requirements.
• Check the charger cabling before use. Make sure there are no cracks in the cabling or in the protective covering. A
charger with damaged cables may not be used.
• Always check that the charger has gone over to maintenance charging mode before leaving the charger unattended and
connected for long periods. If the charger had not gone over to maintenance charging within 3 days, this is an indication
of a problem. In this case the charger must be disconnected manually.
• All batteries fail sooner or later. A battery that fails during charging is normally taken care of by the chargers advanced
control, but certain uncommon errors in the battery can still arise. Don’t leave the battery charger unattended for a
longer period of time.
• Only mount the charger on a flat surface.
• This equipment may not be used by children or by those who can not read and understand the manual if they are not
supervised by a responsible person who can guarantee that the battery charger is being used in a safe manner. Store
and use the battery charger out of the reach of children. Make sure that children do not play with the battery charger.
• When using outdoors the charger has to be positioned horizontally with the long side or topside turned up.
• When using the 19mm cig plug connector the mating part must be approved for 14A or more.
CHARGING
Connecting the charger to a battery fitted in a vehicle
1. The power cord should be disconnected when connecting or disconnecting the battery leads.
2. Identify the battery terminal that is grounded (connected to the chassis). The negative terminal is normally the grounded
post.
3. Charging a negatively grounded battery. Connect the red cable to the positive terminal on the battery and the black
cable to good metal engine ground away from the battery. Ensure you do not connect the black cable to fuel lines or
sheet-metal body parts.
4. Charging a positively grounded battery. Connect the black cable to the negative terminal on the battery and the red
cable to good metal engine ground away from the battery. Ensure you do not connect the red cable to fuel lines or
sheet-metal body parts.
Connecting the charger to an out of vehicle battery:
1. The power cord should be disconnected when connecting or disconnecting the battery leads.
2. Connect the red cable to the positive terminal on the battery and the black cable to the negative terminal.
3. If the battery leads have been connected incorrectly, the reverse polarity protection system will ensure that neither the
charger nor the battery are damaged.
Start charging
1. Connect the chargers AC cord to an AC Power Supply. The charger will indicate POWER, yellow indication lamp (B).
2. The lamp for completely discharged battery (1) will illuminate if the battery’s voltage is less than 24V.
