CTEK MXS 15 User Manual

12V/25A

MXS 25

MANUAL

MODE

SUPPLYNORMAL RECOND

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 batter y charging.

12V/15A

L: 2000 mm

SUPPLY PLUG*

MXS 15

SUPPLY

RECOND

TEMPERATURE
SENSOR

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

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

MODE

NORMAL
BATT ERY

PROGRAM

BULK

SUPPLYNORMAL RECOND

SUPPLY

PROGRAM

SUPPLY

RECOND

ERROR LAMP

MODE-

BUTTON

TEMPERATURE

SENSOR

INDICAT OR

POWER

LAMP

DESULPHATION

SOFT START

is lit.

FLOAT, FULLY CHARGED
PULSE, MAINTENANCE CHARGING

RECO ND

PROGRAM

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CHARGING PROGRAMS

SUPPLY

MXS 25

SUPPLYNORMAL RECOND

RECOND

SUPPLY

MODE

12V/25A

MXS 25

SUPPLYNORMAL RECOND

RECOND

SUPPLY

12V/25A

MXS 25

Settings are made by pressing the MODE-button. Af ter 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

RECOND

Battery

Size (Ah)

Normal battery program

30–500Ah

30–500Ah

30–500Ah

14.4V/15A. Use for WET batteries,
Ca/Ca, MF and for most GEL b atteries

Recond progr am 15.8V/3A

Use to return energ y to the empty
WET and Ca/Ca batteries. Re cond
your bat tery 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
batte ries and reduce servic e life of
electronics. Contact your vehicle and
battery supplier for advice.

Supply program 13.6 V/15A

Use as 12V power supply or use for
float maintenance charging when 100%
capacity of the batte ry is required.
Supply program ac tivate s Float step
without time or voltage limitation.

The spark protection on the battery charger

is disabled during SUPPLY program.

Explanation Temp range

WARNING!

-2 0°C–+5 0°C

(-4ºF–122ºF)

-2 0°C–+5 0°C

(-4ºF–122ºF)

-2 0°C–+5 0°C

(-4ºF–122ºF)

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ERROR LAMP

If the error lamp is lit, check the following:

1. Is the chargers positive lead connected to the bat terys
positive pole?

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

3. 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.

or ?

TEMPERATURE SENSOR

The MXS 15 is equipped with an external temperature sensor. Activated
temperature sensor will be indicated by a lit temperature sensor indicator
lamp. The temperature sensor 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.

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 in 2 minutes.

READY TO USE

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

BATTERY SIZE (Ah)

40Ah
100Ah
200Ah
300Ah

TIME TO 80% CHARGED

2h

5h
10h
16h

CHARGING PROGRAM

DESULPHATION SOFT START BULK ABSORPTION

VOLTAGE (V)CURRENT (A)

NORMAL

RECOND

1

1

14.4V 15A until 12.6V Increasing voltage

14.4V 15A until 12.6V Increasing voltage

2 3 4 5

14.4V @ 25°C
to 14.4V @ 25°C
15A

to 14.4V @ 25°C
15A

Declining current

14.4V @ 25°C

Declining current

SUPPLY

Limit:

STEP 1 DESULPHATION

Detects sulphated batteries. Pulsing current and voltage, removes sulphate from the lead
plates of the battery restoring the battery capacity.

STEP 2 SOFT START

Tests if the batter y can accept charge. This step prevents that charging proceeds with a
defect battery.

STEP 3 BULK

Charging with maximum current until approximately 80% battery capacity.

STEP 4 ABSORPTION

Charging with declining current to maximize up to 100% battery capacit y.

Max 4h

Max 4h

Max 20h Max 8h 3 minutes

ANALYSE RECOND PULSE

6 8

Checks if voltage
drops to 12V

Checks if voltage
drops to 12V

STEP 5 ANALYSE

Tests if the batter y can hold charge. Batteries that can not hold charge may need to be replaced.

STEP 6 RECOND

Choose the Recond program to add the Recond step to the charging process. During the Recond step
voltage increases to create controlled gasing in the battery. Gasing mixes the battery acid and gives
back energy to the battery.

STEP 7 F LOAT

Maintaining the batter y voltage at maximum level by providing a constant voltage charge.

STEP 8 PULSE

Maintaining the batter y at 95–100% capacit y. The charger monitors the bat tery voltage and gives a

pulse when necessary to keep the battery fully charged.

Max 15.8V
3A

30 min or 4h
depending on
battery voltage

FLOAT

7

13.6V
15A

13.6V
15A

Max 13.6V
15A

10 days

Charge cycle restarts
if voltage drops*

12.9V‒14.4V
18‒4.5A

12.9V‒14.4V
18‒4.5A

Charge cycle restarts
if voltage drops

*Supply program is not time or voltage limited.

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TECHNICAL SPECIFICATIONS

MODE

SUPPLYNORMAL RECOND

12V/15A

MXS 15

SUPPLY

RECOND

Charger model

Model number

Rated Vol tage AC

CONNECT THE CHARGER
TO A BATTERY

INFO

If the batter y clamps are incorrectly
connected, the reverse polarity protec­tion will ensure that the batter y and
charger are not damaged.

For batter ies mounted inside a
vehicle

1. Connect t he red cla mp to the b atte ry's
positive pole.

2. Connect the black clamp to the vehicle
chass is remot e from the f uel pip e and
the battery.

3. Connect the ch arger to t he wall socket

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

5. Disconnect the black clamp before the
red clamp.

Some vehicles may have posit ively
earthed batteries

1. Connect the black clamp to the battery's
negative pole.

2. Conn ect the r ed clamp to the veh icle
chass is remot e from the f uel pip e and
the battery.

3. Connect the ch arger to t he wall socket

+

–

–

+

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

5. Disconnect the red clamp before the
black clamp.

Charging voltage

Start voltage

Charging current

Current, mains

Back current drain*

Ripple**

Ambient
temperature

Charger type

Battery types

Battery capacity

Dimensions

Insulation class

Weight

*) Back current drain is the current that drains the battery if the charger is not connected

to the mains. CTEK chargers has a very low back current.

**) The quality of the charging voltage and charging current is ver y impor tant. A high

current ripple heats up the battery which has an aging effect on the positive electrode.
High voltage ripple could harm other equipment that is connected to the batter y. CTEK
battery chargers produce ver y clean voltage and current with low ripple.

MXS 15

1055

220–240VAC, 50–60Hz

NORMA L 14.4 V, RECOND 15. 8V, SUPPLY 13.6V

2.0V

15A m ax

1.8A rms (at full charging current)

<1Ah /mon th

<4%

-20°C to +50°C, output power is reduced
automatically at high temperatures

8-step, fully automatic charging cycle

All types of 12V lead-acid batteries

(WET, MF, Ca/Ca, AGM and GEL)

30― 300Ah up to 500Ah for maintenance

235 x 130 x 65mm (L x W x H)

IP4 4

1.9kg

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SAFETY

• The charger is designed for charging 12V lead- acid batteries. Do not use the charger

for any other purpose.

• Check the charger cables prior to use. Ensure that no cracks have occurred in the

cables or in the bend protection. A charger with damaged cables must not be used.
A damage cable must be replaced by a CTEK representative.

• Never charge a damaged battery.

• Never charge a frozen batter y.

• Never place the charger on top of the battery when charging.

• Always provide for proper ventilation during charging.

• Avoid covering the charger.

• A battery being charged could emit explosive gasses. Prevent sparks close to the

battery. When batteries are reaching the end of their lifecycle internal sparks may occur.

• All batteries fail sooner or later. A battery that fails during charging is normally

taken care of by the chargers advanced control, but some rare errors in the batter y
could still exist. Don’t leave any battery during charging unattended for a longer period
of time.

• Ensure that the cabling does not jam or comes into contact with hot surfaces or sharp

edges.

• Battery acid is corrosive. Rinse immediately with water if acid comes into contact

with skin or eyes, seek immediate medical advice.

• Always check that the charger has switched to

unattended and connected for long periods. If the charger has not switched to

within 36 hours, this is an indication of an error. Manually disconnect the charger.

• Batteries consume water during use and charging. For batteries where water can

be added, the water level should be checked regularly. If the water level is low add
distilled water.

• This appliance is not designed for use by young children or people who cannot read

or understand the manual unless they are under the supervision of a responsible person
to ensure that they can use the battery charger safely. Store and use the battery charger
out of the reach of children, and ensure that children cannot play with the charger.

• Connection to the mains supply must be in accordance with the national regulations

for electrical installations.

before leaving the charger

LIMITED WARRANTY

CTEK SWEDEN AB, issues this limited warranty to the original purchaser of this product.
This limited warranty is not transferable. The warranty applies to manufacturing faults
and material defects for 2 years from the date of purchase. The customer must return the
product together with the receipt of purchase to the point of purchase. This warranty is
void if the batter y charger has been opened, handled carelessly or repaired by anyone
other than CTEK SWEDEN AB or its authorised representatives. One of the screw
holes in the bottom of the charger is sealed. Removing or damaging the seal will void
the warranty. CTEK SWEDEN AB makes no warranty other than this limited warranty
and is not liable for any costs other than those mentioned above, i.e. no consequential
damages. Moreover, CTEK SWEDEN AB is not obligated to any warrant y other than this
warranty.

SUPPORT

CTEK offers a professional custom support: www.ctek.com.
For latest revised user manual see ww w.ctek.com. By e- mail: [e-mail],
by telephone: [phone], by fax [phone].
By mail: CTEK SWEDEN AB, Rostugnsvägen 3, SE-776 70 VIKMANSHY TTAN,
SWEDEN.

VIKMANSHYTTAN, SWEDEN 2011-09-01

Bengt Hagander, President
CTEK SWEDEN AB

EN

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CTEK PRODUCTS ARE PROTECTED BY

2011- 09-19

Patents Designs Trade marks

EP10156636.2 pending RCD 509617 CTM 669987
US12/780968 pending US D575225 CTM 844303
EP1618643 US D580853 CTM 372715
US7541778 US D581356 CTM 3151800
EP1744432 US D571179 CTM 1461716 pending
EP1483817 pending RCD 321216 CTM 1025831
SE524203 RCD 000911839 CTM 405811
US7005832B2 RCD 081418 CTM 830545751 pending
EP1716626 pending RC D 0 01119911-0 001 CTM 1475420 pending
SE 5266 31 RCD 001119911-0002 CTM 1935061 pending
US 76389 74B 2 RCD 081244 V28573IP00
EP1903658 pending RCD 321198 CTM 1082141 pending
EP09180286.8 pending RCD 321197 CTM 2010004118 pending
US12/646405 pending ZL 200830120184.0 CTM 4-2010-500516 pending
EP1483 818 ZL 200830120183.6 CTM 410713
SE1483 818 RCD 001505138-0001 CTM 2010/05152 pending
US 7629 774B2 RCD 000835541-0001 CTM1042686
EP09170640.8 pending RCD 000835541-0002 CTM 766840 p ending
US12/564360 pending D596126
SE528232 D596125
SE525604 RCD 001705138 pending

US D29/378528 pending
RCD 201030618223.7 pending
US RE42303
US RE42230

8 • EN

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20016019B